UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

New code for 5.14: 

- Refactor the buffer cache to use bulk page allocation
 - Convert agnumber-based AG iteration to walk per-AG structures
 - Clean up some unit conversions and other code warts
 - Reduce spinlock contention in the directio fastpath
 - Collapse all the inode cache walks into a single function
 - Remove indirect function calls from the inode cache walk code
 - Dramatically reduce the number of cache flushes sent when writing log
   buffers
 - Preserve inode sickness reports for longer
 - Rename xfs_eofblocks since it controls inode cache walks
 - Refactor the extended attribute code to prepare it for the addition
   of log intent items to make xattrs fully transactional
 - A few fixes to earlier large patchsets
 - Log recovery fixes so that we don't accidentally mark the log clean
   when log intent recovery fails
 - Fix some latent SOB errors
 - Clean up shutdown messages that get logged to dmesg
 - Fix a regression in the online shrink code
 - Fix a UAF in the buffer logging code if the fs goes offline
 - Fix uninitialized error variables
 - Fix a UAF in the CIL when commited log item callbacks race with a
   shutdown
 - Fix a bug where the CIL could hang trying to push part of the log ring
   buffer that hasn't been filled yet
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAmDXP38ACgkQ+H93GTRK
 tOsKzw//eHvEgeyBo7ek06GDsUph2kQVR9AJWE7MNMiBFxlmL8R9H225xJK7Qmcr
 YswcyEeDq8cNXbXDA249ueuMb+DxhZPY68hPK5BJ3KsbvL2RZV0lJCbk492l4cgb
 IvBJiG/MDo55km83tdr81AlmFYQM7rSQz5MbVogGxxsnp0ul3VpIrJZba8kPRDQ1
 mZzH2fdlnE9Ozw/CfvjSgT1pySyFpxNeTRucYXUQil1hL1AGTBw7rGGNnccS090y
 u/EawQ4WJ131m8O3+WomUmaGyZFlWvTpHzukKxvrEvZ6AG+HpIhMcbZ5J6nkRTY4
 xxhUBG2qNKIcgPmPwAGmx1cylcsOCNKQgp+fko9tAZjEkgT5cbCpqpjGgjNB0RCf
 pB0PY6idCFl9hmBpVgMWz2AZ9IsDmK54qufmLtzq/zN8cThzt6A95UUR0rGu5Kd8
 CUmmdQTYl0GqlTTszCO2rw1+zRtcasMpBVmeYHDxy00bd1dHLUJ6o8DuXRYTTQti
 J/6CZVVD56jieRb+uvrOq4mhiPR2kynciiu1dXdY5kx79kKom6HMBBvtTl8b9kmh
 smWihfip7BTpz5vFzcwFmMxFwzW3K4LnDZl7qEGqXDEIHOL+pRWazU2yN3JZRGyd
 z4SQMJuER0HTTA0yO09c3/CX9onorhjUIMgQ9U25l1hdyFna0+o=
 =08Q9
 -----END PGP SIGNATURE-----

Merge tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Darrick Wong:
 "Most of the work this cycle has been on refactoring various parts of
  the codebase. The biggest non-cleanup changes are (1) reducing the
  number of cache flushes sent when writing the log; (2) a substantial
  number of log recovery fixes; and (3) I started accepting pull
  requests from contributors if the commits in their branches match
  what's been sent to the list.

  For a week or so I /had/ staged a major cleanup of the logging code
  from Dave Chinner, but it exposed so many lurking bugs in other parts
  of the logging and log recovery code that I decided to defer that
  patchset until we can address those latent bugs.

  Larger cleanups this time include walking the incore inode cache (me)
  and rework of the extended attribute code (Allison) to prepare it for
  adding logged xattr updates (and directory tree parent pointers) in
  future releases.

  Summary:

   - Refactor the buffer cache to use bulk page allocation

   - Convert agnumber-based AG iteration to walk per-AG structures

   - Clean up some unit conversions and other code warts

   - Reduce spinlock contention in the directio fastpath

   - Collapse all the inode cache walks into a single function

   - Remove indirect function calls from the inode cache walk code

   - Dramatically reduce the number of cache flushes sent when writing
     log buffers

   - Preserve inode sickness reports for longer

   - Rename xfs_eofblocks since it controls inode cache walks

   - Refactor the extended attribute code to prepare it for the addition
     of log intent items to make xattrs fully transactional

   - A few fixes to earlier large patchsets

   - Log recovery fixes so that we don't accidentally mark the log clean
     when log intent recovery fails

   - Fix some latent SOB errors

   - Clean up shutdown messages that get logged to dmesg

   - Fix a regression in the online shrink code

   - Fix a UAF in the buffer logging code if the fs goes offline

   - Fix uninitialized error variables

   - Fix a UAF in the CIL when commited log item callbacks race with a
     shutdown

   - Fix a bug where the CIL could hang trying to push part of the log
     ring buffer that hasn't been filled yet"

* tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (102 commits)
  xfs: don't wait on future iclogs when pushing the CIL
  xfs: Fix a CIL UAF by getting get rid of the iclog callback lock
  xfs: remove callback dequeue loop from xlog_state_do_iclog_callbacks
  xfs: don't nest icloglock inside ic_callback_lock
  xfs: Initialize error in xfs_attr_remove_iter
  xfs: fix endianness issue in xfs_ag_shrink_space
  xfs: remove dead stale buf unpin handling code
  xfs: hold buffer across unpin and potential shutdown processing
  xfs: force the log offline when log intent item recovery fails
  xfs: fix log intent recovery ENOSPC shutdowns when inactivating inodes
  xfs: shorten the shutdown messages to a single line
  xfs: print name of function causing fs shutdown instead of hex pointer
  xfs: fix type mismatches in the inode reclaim functions
  xfs: separate primary inode selection criteria in xfs_iget_cache_hit
  xfs: refactor the inode recycling code
  xfs: add iclog state trace events
  xfs: xfs_log_force_lsn isn't passed a LSN
  xfs: Fix CIL throttle hang when CIL space used going backwards
  xfs: journal IO cache flush reductions
  xfs: remove need_start_rec parameter from xlog_write()
  ...
This commit is contained in:
Linus Torvalds 2021-07-02 14:30:27 -07:00
parent e4aa67b023 1effb72a81
commit 9f7b640f00
92 changed files with 3870 additions and 3079 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

280
fs/xfs/libxfs/xfs_ag.c
View File

@ -27,6 +27,276 @@
#include "xfs_defer.h"
#include "xfs_log_format.h"
#include "xfs_trans.h"
#include "xfs_trace.h"
#include "xfs_inode.h"
#include "xfs_icache.h"
/*
* Passive reference counting access wrappers to the perag structures. If the
* per-ag structure is to be freed, the freeing code is responsible for cleaning
* up objects with passive references before freeing the structure. This is
* things like cached buffers.
*/
struct xfs_perag *
xfs_perag_get(
struct xfs_mount *mp,
xfs_agnumber_t agno)
{
struct xfs_perag *pag;
int ref = 0;
rcu_read_lock();
pag = radix_tree_lookup(&mp->m_perag_tree, agno);
if (pag) {
ASSERT(atomic_read(&pag->pag_ref) >= 0);
ref = atomic_inc_return(&pag->pag_ref);
}
rcu_read_unlock();
trace_xfs_perag_get(mp, agno, ref, _RET_IP_);
return pag;
}
/*
* search from @first to find the next perag with the given tag set.
*/
struct xfs_perag *
xfs_perag_get_tag(
struct xfs_mount *mp,
xfs_agnumber_t first,
unsigned int tag)
{
struct xfs_perag *pag;
int found;
int ref;
rcu_read_lock();
found = radix_tree_gang_lookup_tag(&mp->m_perag_tree,
(void **)&pag, first, 1, tag);
if (found <= 0) {
rcu_read_unlock();
return NULL;
}
ref = atomic_inc_return(&pag->pag_ref);
rcu_read_unlock();
trace_xfs_perag_get_tag(mp, pag->pag_agno, ref, _RET_IP_);
return pag;
}
void
xfs_perag_put(
struct xfs_perag *pag)
{
int ref;
ASSERT(atomic_read(&pag->pag_ref) > 0);
ref = atomic_dec_return(&pag->pag_ref);
trace_xfs_perag_put(pag->pag_mount, pag->pag_agno, ref, _RET_IP_);
}
/*
* xfs_initialize_perag_data
*
* Read in each per-ag structure so we can count up the number of
* allocated inodes, free inodes and used filesystem blocks as this
* information is no longer persistent in the superblock. Once we have
* this information, write it into the in-core superblock structure.
*/
int
xfs_initialize_perag_data(
struct xfs_mount *mp,
xfs_agnumber_t agcount)
{
xfs_agnumber_t index;
struct xfs_perag *pag;
struct xfs_sb *sbp = &mp->m_sb;
uint64_t ifree = 0;
uint64_t ialloc = 0;
uint64_t bfree = 0;
uint64_t bfreelst = 0;
uint64_t btree = 0;
uint64_t fdblocks;
int error = 0;
for (index = 0; index < agcount; index++) {
/*
* read the agf, then the agi. This gets us
* all the information we need and populates the
* per-ag structures for us.
*/
error = xfs_alloc_pagf_init(mp, NULL, index, 0);
if (error)
return error;
error = xfs_ialloc_pagi_init(mp, NULL, index);
if (error)
return error;
pag = xfs_perag_get(mp, index);
ifree += pag->pagi_freecount;
ialloc += pag->pagi_count;
bfree += pag->pagf_freeblks;
bfreelst += pag->pagf_flcount;
btree += pag->pagf_btreeblks;
xfs_perag_put(pag);
}
fdblocks = bfree + bfreelst + btree;
/*
* If the new summary counts are obviously incorrect, fail the
* mount operation because that implies the AGFs are also corrupt.
* Clear FS_COUNTERS so that we don't unmount with a dirty log, which
* will prevent xfs_repair from fixing anything.
*/
if (fdblocks > sbp->sb_dblocks || ifree > ialloc) {
xfs_alert(mp, "AGF corruption. Please run xfs_repair.");
error = -EFSCORRUPTED;
goto out;
}
/* Overwrite incore superblock counters with just-read data */
spin_lock(&mp->m_sb_lock);
sbp->sb_ifree = ifree;
sbp->sb_icount = ialloc;
sbp->sb_fdblocks = fdblocks;
spin_unlock(&mp->m_sb_lock);
xfs_reinit_percpu_counters(mp);
out:
xfs_fs_mark_healthy(mp, XFS_SICK_FS_COUNTERS);
return error;
}
STATIC void
__xfs_free_perag(
struct rcu_head *head)
{
struct xfs_perag *pag = container_of(head, struct xfs_perag, rcu_head);
ASSERT(!delayed_work_pending(&pag->pag_blockgc_work));
ASSERT(atomic_read(&pag->pag_ref) == 0);
kmem_free(pag);
}
/*
* Free up the per-ag resources associated with the mount structure.
*/
void
xfs_free_perag(
struct xfs_mount *mp)
{
struct xfs_perag *pag;
xfs_agnumber_t agno;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
spin_lock(&mp->m_perag_lock);
pag = radix_tree_delete(&mp->m_perag_tree, agno);
spin_unlock(&mp->m_perag_lock);
ASSERT(pag);
ASSERT(atomic_read(&pag->pag_ref) == 0);
cancel_delayed_work_sync(&pag->pag_blockgc_work);
xfs_iunlink_destroy(pag);
xfs_buf_hash_destroy(pag);
call_rcu(&pag->rcu_head, __xfs_free_perag);
}
}
int
xfs_initialize_perag(
struct xfs_mount *mp,
xfs_agnumber_t agcount,
xfs_agnumber_t *maxagi)
{
struct xfs_perag *pag;
xfs_agnumber_t index;
xfs_agnumber_t first_initialised = NULLAGNUMBER;
int error;
/*
* Walk the current per-ag tree so we don't try to initialise AGs
* that already exist (growfs case). Allocate and insert all the
* AGs we don't find ready for initialisation.
*/
for (index = 0; index < agcount; index++) {
pag = xfs_perag_get(mp, index);
if (pag) {
xfs_perag_put(pag);
continue;
}
pag = kmem_zalloc(sizeof(*pag), KM_MAYFAIL);
if (!pag) {
error = -ENOMEM;
goto out_unwind_new_pags;
}
pag->pag_agno = index;
pag->pag_mount = mp;
error = radix_tree_preload(GFP_NOFS);
if (error)
goto out_free_pag;
spin_lock(&mp->m_perag_lock);
if (radix_tree_insert(&mp->m_perag_tree, index, pag)) {
WARN_ON_ONCE(1);
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
error = -EEXIST;
goto out_free_pag;
}
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
/* Place kernel structure only init below this point. */
spin_lock_init(&pag->pag_ici_lock);
spin_lock_init(&pag->pagb_lock);
spin_lock_init(&pag->pag_state_lock);
INIT_DELAYED_WORK(&pag->pag_blockgc_work, xfs_blockgc_worker);
INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC);
init_waitqueue_head(&pag->pagb_wait);
pag->pagb_count = 0;
pag->pagb_tree = RB_ROOT;
error = xfs_buf_hash_init(pag);
if (error)
goto out_remove_pag;
error = xfs_iunlink_init(pag);
if (error)
goto out_hash_destroy;
/* first new pag is fully initialized */
if (first_initialised == NULLAGNUMBER)
first_initialised = index;
}
index = xfs_set_inode_alloc(mp, agcount);
if (maxagi)
*maxagi = index;
mp->m_ag_prealloc_blocks = xfs_prealloc_blocks(mp);
return 0;
out_hash_destroy:
xfs_buf_hash_destroy(pag);
out_remove_pag:
radix_tree_delete(&mp->m_perag_tree, index);
out_free_pag:
kmem_free(pag);
out_unwind_new_pags:
/* unwind any prior newly initialized pags */
for (index = first_initialised; index < agcount; index++) {
pag = radix_tree_delete(&mp->m_perag_tree, index);
if (!pag)
break;
xfs_buf_hash_destroy(pag);
xfs_iunlink_destroy(pag);
kmem_free(pag);
}
return error;
}
static int
xfs_get_aghdr_buf(
@ -43,7 +313,6 @@ xfs_get_aghdr_buf(
if (error)
return error;
xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
bp->b_bn = blkno;
bp->b_maps[0].bm_bn = blkno;
bp->b_ops = ops;
@ -510,6 +779,7 @@ xfs_ag_shrink_space(
struct xfs_buf *agibp, *agfbp;
struct xfs_agi *agi;
struct xfs_agf *agf;
xfs_agblock_t aglen;
int error, err2;
ASSERT(agno == mp->m_sb.sb_agcount - 1);
@ -524,14 +794,14 @@ xfs_ag_shrink_space(
return error;
agf = agfbp->b_addr;
aglen = be32_to_cpu(agi->agi_length);
/* some extra paranoid checks before we shrink the ag */
if (XFS_IS_CORRUPT(mp, agf->agf_length != agi->agi_length))
return -EFSCORRUPTED;
if (delta >= agi->agi_length)
if (delta >= aglen)
return -EINVAL;
args.fsbno = XFS_AGB_TO_FSB(mp, agno,
be32_to_cpu(agi->agi_length) - delta);
args.fsbno = XFS_AGB_TO_FSB(mp, agno, aglen - delta);
/*
* Disable perag reservations so it doesn't cause the allocation request
@ -646,7 +916,7 @@ xfs_ag_extend_space(
* XFS_RMAP_OINFO_SKIP_UPDATE is used here to tell the rmap btree that
* this doesn't actually exist in the rmap btree.
*/
error = xfs_rmap_free(tp, bp, id->agno,
error = xfs_rmap_free(tp, bp, bp->b_pag,
be32_to_cpu(agf->agf_length) - len,
len, &XFS_RMAP_OINFO_SKIP_UPDATE);
if (error)

136
fs/xfs/libxfs/xfs_ag.h
View File

@ -9,6 +9,142 @@
struct xfs_mount;
struct xfs_trans;
struct xfs_perag;
/*
* Per-ag infrastructure
*/
/* per-AG block reservation data structures*/
struct xfs_ag_resv {
/* number of blocks originally reserved here */
xfs_extlen_t ar_orig_reserved;
/* number of blocks reserved here */
xfs_extlen_t ar_reserved;
/* number of blocks originally asked for */
xfs_extlen_t ar_asked;
};
/*
* Per-ag incore structure, copies of information in agf and agi, to improve the
* performance of allocation group selection.
*/
struct xfs_perag {
struct xfs_mount *pag_mount; /* owner filesystem */
xfs_agnumber_t pag_agno; /* AG this structure belongs to */
atomic_t pag_ref; /* perag reference count */
char pagf_init; /* this agf's entry is initialized */
char pagi_init; /* this agi's entry is initialized */
char pagf_metadata; /* the agf is preferred to be metadata */
char pagi_inodeok; /* The agi is ok for inodes */
uint8_t pagf_levels[XFS_BTNUM_AGF];
/* # of levels in bno & cnt btree */
bool pagf_agflreset; /* agfl requires reset before use */
uint32_t pagf_flcount; /* count of blocks in freelist */
xfs_extlen_t pagf_freeblks; /* total free blocks */
xfs_extlen_t pagf_longest; /* longest free space */
uint32_t pagf_btreeblks; /* # of blocks held in AGF btrees */
xfs_agino_t pagi_freecount; /* number of free inodes */
xfs_agino_t pagi_count; /* number of allocated inodes */
/*
* Inode allocation search lookup optimisation.
* If the pagino matches, the search for new inodes
* doesn't need to search the near ones again straight away
*/
xfs_agino_t pagl_pagino;
xfs_agino_t pagl_leftrec;
xfs_agino_t pagl_rightrec;
int pagb_count; /* pagb slots in use */
uint8_t pagf_refcount_level; /* recount btree height */
/* Blocks reserved for all kinds of metadata. */
struct xfs_ag_resv pag_meta_resv;
/* Blocks reserved for the reverse mapping btree. */
struct xfs_ag_resv pag_rmapbt_resv;
/* -- kernel only structures below this line -- */
/*
* Bitsets of per-ag metadata that have been checked and/or are sick.
* Callers should hold pag_state_lock before accessing this field.
*/
uint16_t pag_checked;
uint16_t pag_sick;
spinlock_t pag_state_lock;
spinlock_t pagb_lock; /* lock for pagb_tree */
struct rb_root pagb_tree; /* ordered tree of busy extents */
unsigned int pagb_gen; /* generation count for pagb_tree */
wait_queue_head_t pagb_wait; /* woken when pagb_gen changes */
atomic_t pagf_fstrms; /* # of filestreams active in this AG */
spinlock_t pag_ici_lock; /* incore inode cache lock */
struct radix_tree_root pag_ici_root; /* incore inode cache root */
int pag_ici_reclaimable; /* reclaimable inodes */
unsigned long pag_ici_reclaim_cursor; /* reclaim restart point */
/* buffer cache index */
spinlock_t pag_buf_lock; /* lock for pag_buf_hash */
struct rhashtable pag_buf_hash;
/* for rcu-safe freeing */
struct rcu_head rcu_head;
/* background prealloc block trimming */
struct delayed_work pag_blockgc_work;
/*
* Unlinked inode information. This incore information reflects
* data stored in the AGI, so callers must hold the AGI buffer lock
* or have some other means to control concurrency.
*/
struct rhashtable pagi_unlinked_hash;
};
int xfs_initialize_perag(struct xfs_mount *mp, xfs_agnumber_t agcount,
xfs_agnumber_t *maxagi);
int xfs_initialize_perag_data(struct xfs_mount *mp, xfs_agnumber_t agno);
void xfs_free_perag(struct xfs_mount *mp);
struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno);
struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *mp, xfs_agnumber_t agno,
unsigned int tag);
void xfs_perag_put(struct xfs_perag *pag);
/*
* Perag iteration APIs
*
* XXX: for_each_perag_range() usage really needs an iterator to clean up when
* we terminate at end_agno because we may have taken a reference to the perag
* beyond end_agno. Right now callers have to be careful to catch and clean that
* up themselves. This is not necessary for the callers of for_each_perag() and
* for_each_perag_from() because they terminate at sb_agcount where there are
* no perag structures in tree beyond end_agno.
*/
#define for_each_perag_range(mp, next_agno, end_agno, pag) \
for ((pag) = xfs_perag_get((mp), (next_agno)); \
(pag) != NULL && (next_agno) <= (end_agno); \
(next_agno) = (pag)->pag_agno + 1, \
xfs_perag_put(pag), \
(pag) = xfs_perag_get((mp), (next_agno)))
#define for_each_perag_from(mp, next_agno, pag) \
for_each_perag_range((mp), (next_agno), (mp)->m_sb.sb_agcount, (pag))
#define for_each_perag(mp, agno, pag) \
(agno) = 0; \
for_each_perag_from((mp), (agno), (pag))
#define for_each_perag_tag(mp, agno, pag, tag) \
for ((agno) = 0, (pag) = xfs_perag_get_tag((mp), 0, (tag)); \
(pag) != NULL; \
(agno) = (pag)->pag_agno + 1, \
xfs_perag_put(pag), \
(pag) = xfs_perag_get_tag((mp), (agno), (tag)))
struct aghdr_init_data {
/* per ag data */

11
fs/xfs/libxfs/xfs_ag_resv.c
View File

@ -19,7 +19,7 @@
#include "xfs_btree.h"
#include "xfs_refcount_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
/*
@ -250,7 +250,6 @@ xfs_ag_resv_init(
struct xfs_trans *tp)
{
struct xfs_mount *mp = pag->pag_mount;
xfs_agnumber_t agno = pag->pag_agno;
xfs_extlen_t ask;
xfs_extlen_t used;
int error = 0, error2;
@ -260,11 +259,11 @@ xfs_ag_resv_init(
if (pag->pag_meta_resv.ar_asked == 0) {
ask = used = 0;
error = xfs_refcountbt_calc_reserves(mp, tp, agno, &ask, &used);
error = xfs_refcountbt_calc_reserves(mp, tp, pag, &ask, &used);
if (error)
goto out;
error = xfs_finobt_calc_reserves(mp, tp, agno, &ask, &used);
error = xfs_finobt_calc_reserves(mp, tp, pag, &ask, &used);
if (error)
goto out;
@ -282,7 +281,7 @@ xfs_ag_resv_init(
mp->m_finobt_nores = true;
error = xfs_refcountbt_calc_reserves(mp, tp, agno, &ask,
error = xfs_refcountbt_calc_reserves(mp, tp, pag, &ask,
&used);
if (error)
goto out;
@ -300,7 +299,7 @@ xfs_ag_resv_init(
if (pag->pag_rmapbt_resv.ar_asked == 0) {
ask = used = 0;
error = xfs_rmapbt_calc_reserves(mp, tp, agno, &ask, &used);
error = xfs_rmapbt_calc_reserves(mp, tp, pag, &ask, &used);
if (error)
goto out;

15
fs/xfs/libxfs/xfs_ag_resv.h
View File

@ -18,6 +18,21 @@ void xfs_ag_resv_alloc_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
void xfs_ag_resv_free_extent(struct xfs_perag *pag, enum xfs_ag_resv_type type,
struct xfs_trans *tp, xfs_extlen_t len);
static inline struct xfs_ag_resv *
xfs_perag_resv(
struct xfs_perag *pag,
enum xfs_ag_resv_type type)
{
switch (type) {
case XFS_AG_RESV_METADATA:
return &pag->pag_meta_resv;
case XFS_AG_RESV_RMAPBT:
return &pag->pag_rmapbt_resv;
default:
return NULL;
}
}
/*
* RMAPBT reservation accounting wrappers. Since rmapbt blocks are sourced from
* the AGFL, they are allocated one at a time and the reservation updates don't

111
fs/xfs/libxfs/xfs_alloc.c
View File

@ -10,7 +10,6 @@
#include "xfs_shared.h"
#include "xfs_trans_resv.h"
#include "xfs_bit.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_defer.h"
#include "xfs_btree.h"
@ -24,6 +23,7 @@
#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_log.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
#include "xfs_bmap.h"
@ -230,7 +230,7 @@ xfs_alloc_get_rec(
int *stat) /* output: success/failure */
{
struct xfs_mount *mp = cur->bc_mp;
xfs_agnumber_t agno = cur->bc_ag.agno;
xfs_agnumber_t agno = cur->bc_ag.pag->pag_agno;
union xfs_btree_rec *rec;
int error;
@ -776,7 +776,7 @@ xfs_alloc_cur_setup(
*/
if (!acur->cnt)
acur->cnt = xfs_allocbt_init_cursor(args->mp, args->tp,
args->agbp, args->agno, XFS_BTNUM_CNT);
args->agbp, args->pag, XFS_BTNUM_CNT);
error = xfs_alloc_lookup_ge(acur->cnt, 0, args->maxlen, &i);
if (error)
return error;
@ -786,10 +786,10 @@ xfs_alloc_cur_setup(
*/
if (!acur->bnolt)
acur->bnolt = xfs_allocbt_init_cursor(args->mp, args->tp,
args->agbp, args->agno, XFS_BTNUM_BNO);
args->agbp, args->pag, XFS_BTNUM_BNO);
if (!acur->bnogt)
acur->bnogt = xfs_allocbt_init_cursor(args->mp, args->tp,
args->agbp, args->agno, XFS_BTNUM_BNO);
args->agbp, args->pag, XFS_BTNUM_BNO);
return i == 1 ? 0 : -ENOSPC;
}
@ -1063,7 +1063,7 @@ xfs_alloc_ag_vextent_small(
if (fbno == NULLAGBLOCK)
goto out;
xfs_extent_busy_reuse(args->mp, args->agno, fbno, 1,
xfs_extent_busy_reuse(args->mp, args->pag, fbno, 1,
(args->datatype & XFS_ALLOC_NOBUSY));
if (args->datatype & XFS_ALLOC_USERDATA) {
@ -1089,7 +1089,7 @@ xfs_alloc_ag_vextent_small(
* If we're feeding an AGFL block to something that doesn't live in the
* free space, we need to clear out the OWN_AG rmap.
*/
error = xfs_rmap_free(args->tp, args->agbp, args->agno, fbno, 1,
error = xfs_rmap_free(args->tp, args->agbp, args->pag, fbno, 1,
&XFS_RMAP_OINFO_AG);
if (error)
goto error;
@ -1166,7 +1166,7 @@ xfs_alloc_ag_vextent(
/* if not file data, insert new block into the reverse map btree */
if (!xfs_rmap_should_skip_owner_update(&args->oinfo)) {
error = xfs_rmap_alloc(args->tp, args->agbp, args->agno,
error = xfs_rmap_alloc(args->tp, args->agbp, args->pag,
args->agbno, args->len, &args->oinfo);
if (error)
return error;
@ -1178,7 +1178,7 @@ xfs_alloc_ag_vextent(
if (error)
return error;
ASSERT(!xfs_extent_busy_search(args->mp, args->agno,
ASSERT(!xfs_extent_busy_search(args->mp, args->pag,
args->agbno, args->len));
}
@ -1217,7 +1217,7 @@ xfs_alloc_ag_vextent_exact(
* Allocate/initialize a cursor for the by-number freespace btree.
*/
bno_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
args->agno, XFS_BTNUM_BNO);
args->pag, XFS_BTNUM_BNO);
/*
* Lookup bno and minlen in the btree (minlen is irrelevant, really).
@ -1277,7 +1277,7 @@ xfs_alloc_ag_vextent_exact(
* Allocate/initialize a cursor for the by-size btree.
*/
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
args->agno, XFS_BTNUM_CNT);
args->pag, XFS_BTNUM_CNT);
ASSERT(args->agbno + args->len <= be32_to_cpu(agf->agf_length));
error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen, args->agbno,
args->len, XFSA_FIXUP_BNO_OK);
@ -1674,9 +1674,8 @@ restart:
* Allocate and initialize a cursor for the by-size btree.
*/
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
args->agno, XFS_BTNUM_CNT);
args->pag, XFS_BTNUM_CNT);
bno_cur = NULL;
busy = false;
/*
* Look for an entry >= maxlen+alignment-1 blocks.
@ -1837,7 +1836,7 @@ restart:
* Allocate and initialize a cursor for the by-block tree.
*/
bno_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
args->agno, XFS_BTNUM_BNO);
args->pag, XFS_BTNUM_BNO);
if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen,
rbno, rlen, XFSA_FIXUP_CNT_OK)))
goto error0;
@ -1896,12 +1895,13 @@ xfs_free_ag_extent(
int haveright; /* have a right neighbor */
int i;
int error;
struct xfs_perag *pag = agbp->b_pag;
bno_cur = cnt_cur = NULL;
mp = tp->t_mountp;
if (!xfs_rmap_should_skip_owner_update(oinfo)) {
error = xfs_rmap_free(tp, agbp, agno, bno, len, oinfo);
error = xfs_rmap_free(tp, agbp, pag, bno, len, oinfo);
if (error)
goto error0;
}
@ -1909,7 +1909,7 @@ xfs_free_ag_extent(
/*
* Allocate and initialize a cursor for the by-block btree.
*/
bno_cur = xfs_allocbt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_BNO);
bno_cur = xfs_allocbt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_BNO);
/*
* Look for a neighboring block on the left (lower block numbers)
* that is contiguous with this space.
@ -1979,7 +1979,7 @@ xfs_free_ag_extent(
/*
* Now allocate and initialize a cursor for the by-size tree.
*/
cnt_cur = xfs_allocbt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_CNT);
cnt_cur = xfs_allocbt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_CNT);
/*
* Have both left and right contiguous neighbors.
* Merge all three into a single free block.
@ -2490,7 +2490,7 @@ xfs_exact_minlen_extent_available(
int error = 0;
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, agbp,
args->agno, XFS_BTNUM_CNT);
args->pag, XFS_BTNUM_CNT);
error = xfs_alloc_lookup_ge(cnt_cur, 0, args->minlen, stat);
if (error)
goto out;
@ -2693,21 +2693,21 @@ out_no_agbp:
* Get a block from the freelist.
* Returns with the buffer for the block gotten.
*/
int /* error */
int
xfs_alloc_get_freelist(
xfs_trans_t *tp, /* transaction pointer */
struct xfs_buf *agbp, /* buffer containing the agf structure */
xfs_agblock_t *bnop, /* block address retrieved from freelist */
int btreeblk) /* destination is a AGF btree */
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agblock_t *bnop,
int btreeblk)
{
struct xfs_agf *agf = agbp->b_addr;
struct xfs_buf *agflbp;/* buffer for a.g. freelist structure */
xfs_agblock_t bno; /* block number returned */
__be32 *agfl_bno;
int error;
int logflags;
xfs_mount_t *mp = tp->t_mountp;
xfs_perag_t *pag; /* per allocation group data */
struct xfs_agf *agf = agbp->b_addr;
struct xfs_buf *agflbp;
xfs_agblock_t bno;
__be32 *agfl_bno;
int error;
int logflags;
struct xfs_mount *mp = tp->t_mountp;
struct xfs_perag *pag;
/*
* Freelist is empty, give up.
@ -2817,20 +2817,20 @@ xfs_alloc_pagf_init(
/*
* Put the block on the freelist for the allocation group.
*/
int /* error */
int
xfs_alloc_put_freelist(
xfs_trans_t *tp, /* transaction pointer */
struct xfs_buf *agbp, /* buffer for a.g. freelist header */
struct xfs_buf *agflbp,/* buffer for a.g. free block array */
xfs_agblock_t bno, /* block being freed */
int btreeblk) /* block came from a AGF btree */
struct xfs_trans *tp,
struct xfs_buf *agbp,
struct xfs_buf *agflbp,
xfs_agblock_t bno,
int btreeblk)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_agf *agf = agbp->b_addr;
__be32 *blockp;/* pointer to array entry */
struct xfs_perag *pag;
__be32 *blockp;
int error;
int logflags;
xfs_perag_t *pag; /* per allocation group data */
__be32 *agfl_bno;
int startoff;
@ -3292,7 +3292,7 @@ error0:
int
xfs_free_extent_fix_freelist(
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
struct xfs_buf **agbp)
{
struct xfs_alloc_arg args;
@ -3301,7 +3301,8 @@ xfs_free_extent_fix_freelist(
memset(&args, 0, sizeof(struct xfs_alloc_arg));
args.tp = tp;
args.mp = tp->t_mountp;
args.agno = agno;
args.agno = pag->pag_agno;
args.pag = pag;
/*
* validate that the block number is legal - the enables us to detect
@ -3310,17 +3311,12 @@ xfs_free_extent_fix_freelist(
if (args.agno >= args.mp->m_sb.sb_agcount)
return -EFSCORRUPTED;
args.pag = xfs_perag_get(args.mp, args.agno);
ASSERT(args.pag);
error = xfs_alloc_fix_freelist(&args, XFS_ALLOC_FLAG_FREEING);
if (error)
goto out;
return error;
*agbp = args.agbp;
out:
xfs_perag_put(args.pag);
return error;
return 0;
}
/*
@ -3344,6 +3340,7 @@ __xfs_free_extent(
struct xfs_agf *agf;
int error;
unsigned int busy_flags = 0;
struct xfs_perag *pag;
ASSERT(len != 0);
ASSERT(type != XFS_AG_RESV_AGFL);
@ -3352,33 +3349,37 @@ __xfs_free_extent(
XFS_ERRTAG_FREE_EXTENT))
return -EIO;
error = xfs_free_extent_fix_freelist(tp, agno, &agbp);
pag = xfs_perag_get(mp, agno);
error = xfs_free_extent_fix_freelist(tp, pag, &agbp);
if (error)
return error;
goto err;
agf = agbp->b_addr;
if (XFS_IS_CORRUPT(mp, agbno >= mp->m_sb.sb_agblocks)) {
error = -EFSCORRUPTED;
goto err;
goto err_release;
}
/* validate the extent size is legal now we have the agf locked */
if (XFS_IS_CORRUPT(mp, agbno + len > be32_to_cpu(agf->agf_length))) {
error = -EFSCORRUPTED;
goto err;
goto err_release;
}
error = xfs_free_ag_extent(tp, agbp, agno, agbno, len, oinfo, type);
if (error)
goto err;
goto err_release;
if (skip_discard)
busy_flags |= XFS_EXTENT_BUSY_SKIP_DISCARD;
xfs_extent_busy_insert(tp, agno, agbno, len, busy_flags);
xfs_extent_busy_insert(tp, pag, agbno, len, busy_flags);
xfs_perag_put(pag);
return 0;
err:
err_release:
xfs_trans_brelse(tp, agbp);
err:
xfs_perag_put(pag);
return error;
}

2
fs/xfs/libxfs/xfs_alloc.h
View File

@ -214,7 +214,7 @@ int xfs_alloc_read_agfl(struct xfs_mount *mp, struct xfs_trans *tp,
int xfs_free_agfl_block(struct xfs_trans *, xfs_agnumber_t, xfs_agblock_t,
struct xfs_buf *, struct xfs_owner_info *);
int xfs_alloc_fix_freelist(struct xfs_alloc_arg *args, int flags);
int xfs_free_extent_fix_freelist(struct xfs_trans *tp, xfs_agnumber_t agno,
int xfs_free_extent_fix_freelist(struct xfs_trans *tp, struct xfs_perag *pag,
struct xfs_buf **agbp);
xfs_extlen_t xfs_prealloc_blocks(struct xfs_mount *mp);

31
fs/xfs/libxfs/xfs_alloc_btree.c
View File

@ -9,7 +9,6 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_btree.h"
#include "xfs_btree_staging.h"
@ -19,6 +18,7 @@
#include "xfs_error.h"
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_ag.h"
STATIC struct xfs_btree_cur *
@ -26,8 +26,7 @@ xfs_allocbt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_allocbt_init_cursor(cur->bc_mp, cur->bc_tp,
cur->bc_ag.agbp, cur->bc_ag.agno,
cur->bc_btnum);
cur->bc_ag.agbp, cur->bc_ag.pag, cur->bc_btnum);
}
STATIC void
@ -39,13 +38,12 @@ xfs_allocbt_set_root(
struct xfs_buf *agbp = cur->bc_ag.agbp;
struct xfs_agf *agf = agbp->b_addr;
int btnum = cur->bc_btnum;
struct xfs_perag *pag = agbp->b_pag;
ASSERT(ptr->s != 0);
agf->agf_roots[btnum] = ptr->s;
be32_add_cpu(&agf->agf_levels[btnum], inc);
pag->pagf_levels[btnum] += inc;
cur->bc_ag.pag->pagf_levels[btnum] += inc;
xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_ROOTS | XFS_AGF_LEVELS);
}
@ -72,7 +70,7 @@ xfs_allocbt_alloc_block(
}
atomic64_inc(&cur->bc_mp->m_allocbt_blks);
xfs_extent_busy_reuse(cur->bc_mp, cur->bc_ag.agno, bno, 1, false);
xfs_extent_busy_reuse(cur->bc_mp, cur->bc_ag.agbp->b_pag, bno, 1, false);
new->s = cpu_to_be32(bno);
@ -86,7 +84,6 @@ xfs_allocbt_free_block(
struct xfs_buf *bp)
{
struct xfs_buf *agbp = cur->bc_ag.agbp;
struct xfs_agf *agf = agbp->b_addr;
xfs_agblock_t bno;
int error;
@ -96,7 +93,7 @@ xfs_allocbt_free_block(
return error;
atomic64_dec(&cur->bc_mp->m_allocbt_blks);
xfs_extent_busy_insert(cur->bc_tp, be32_to_cpu(agf->agf_seqno), bno, 1,
xfs_extent_busy_insert(cur->bc_tp, agbp->b_pag, bno, 1,
XFS_EXTENT_BUSY_SKIP_DISCARD);
return 0;
}
@ -225,7 +222,7 @@ xfs_allocbt_init_ptr_from_cur(
{
struct xfs_agf *agf = cur->bc_ag.agbp->b_addr;
ASSERT(cur->bc_ag.agno == be32_to_cpu(agf->agf_seqno));
ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno));
ptr->s = agf->agf_roots[cur->bc_btnum];
}
@ -473,7 +470,7 @@ STATIC struct xfs_btree_cur *
xfs_allocbt_init_common(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;
@ -486,6 +483,7 @@ xfs_allocbt_init_common(
cur->bc_mp = mp;
cur->bc_btnum = btnum;
cur->bc_blocklog = mp->m_sb.sb_blocklog;
cur->bc_ag.abt.active = false;
if (btnum == XFS_BTNUM_CNT) {
cur->bc_ops = &xfs_cntbt_ops;
@ -496,8 +494,9 @@ xfs_allocbt_init_common(
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtb_2);
}
cur->bc_ag.agno = agno;
cur->bc_ag.abt.active = false;
/* take a reference for the cursor */
atomic_inc(&pag->pag_ref);
cur->bc_ag.pag = pag;
if (xfs_sb_version_hascrc(&mp->m_sb))
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
@ -513,13 +512,13 @@ xfs_allocbt_init_cursor(
struct xfs_mount *mp, /* file system mount point */
struct xfs_trans *tp, /* transaction pointer */
struct xfs_buf *agbp, /* buffer for agf structure */
xfs_agnumber_t agno, /* allocation group number */
struct xfs_perag *pag,
xfs_btnum_t btnum) /* btree identifier */
{
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
cur = xfs_allocbt_init_common(mp, tp, agno, btnum);
cur = xfs_allocbt_init_common(mp, tp, pag, btnum);
if (btnum == XFS_BTNUM_CNT)
cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]);
else
@ -535,12 +534,12 @@ struct xfs_btree_cur *
xfs_allocbt_stage_cursor(
struct xfs_mount *mp,
struct xbtree_afakeroot *afake,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;
cur = xfs_allocbt_init_common(mp, NULL, agno, btnum);
cur = xfs_allocbt_init_common(mp, NULL, pag, btnum);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}

9
fs/xfs/libxfs/xfs_alloc_btree.h
View File

@ -13,6 +13,7 @@
struct xfs_buf;
struct xfs_btree_cur;
struct xfs_mount;
struct xfs_perag;
struct xbtree_afakeroot;
/*
@ -46,11 +47,11 @@ struct xbtree_afakeroot;
(maxrecs) * sizeof(xfs_alloc_key_t) + \
((index) - 1) * sizeof(xfs_alloc_ptr_t)))
extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *,
struct xfs_trans *, struct xfs_buf *,
xfs_agnumber_t, xfs_btnum_t);
extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *mp,
struct xfs_trans *tp, struct xfs_buf *bp,
struct xfs_perag *pag, xfs_btnum_t btnum);
struct xfs_btree_cur *xfs_allocbt_stage_cursor(struct xfs_mount *mp,
struct xbtree_afakeroot *afake, xfs_agnumber_t agno,
struct xbtree_afakeroot *afake, struct xfs_perag *pag,
xfs_btnum_t btnum);
extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int);
extern xfs_extlen_t xfs_allocbt_calc_size(struct xfs_mount *mp,

964
fs/xfs/libxfs/xfs_attr.c
View File

File diff suppressed because it is too large Load Diff

403
fs/xfs/libxfs/xfs_attr.h
View File

@ -74,6 +74,406 @@ struct xfs_attr_list_context {
};
/*
* ========================================================================
* Structure used to pass context around among the delayed routines.
* ========================================================================
*/
/*
* Below is a state machine diagram for attr remove operations. The XFS_DAS_*
* states indicate places where the function would return -EAGAIN, and then
* immediately resume from after being called by the calling function. States
* marked as a "subroutine state" indicate that they belong to a subroutine, and
* so the calling function needs to pass them back to that subroutine to allow
* it to finish where it left off. But they otherwise do not have a role in the
* calling function other than just passing through.
*
* xfs_attr_remove_iter()
* │
* v
* have attr to remove? ──n──> done
* │
* y
* │
* v
* are we short form? ──y──> xfs_attr_shortform_remove ──> done
* │
* n
* │
* V
* are we leaf form? ──y──> xfs_attr_leaf_removename ──> done
* │
* n
* │
* V
* ┌── need to setup state?
* │ │
* n y
* │ │
* │ v
* │ find attr and get state
* │ attr has remote blks? ──n─┐
* │ │ v
* │ │ find and invalidate
* │ y the remote blocks.
* │ │ mark attr incomplete
* │ ├────────────────┘
* └──────────┤
* │
* v
* Have remote blks to remove? ───y─────┐
* │ ^ remove the blks
* │ │ │
* │ │ v
* │ XFS_DAS_RMTBLK <─n── done?
* │ re-enter with │
* │ one less blk to y
* │ remove │
* │ V
* │ refill the state
* n │
* │ v
* │ XFS_DAS_RM_NAME
* │ │
* ├─────────────────────────┘
* │
* v
* remove leaf and
* update hash with
* xfs_attr_node_remove_cleanup
* │
* v
* need to
* shrink tree? ─n─┐
* │ │
* y │
* │ │
* v │
* join leaf │
* │ │
* v │
* XFS_DAS_RM_SHRINK │
* │ │
* v │
* do the shrink │
* │ │
* v │
* free state <──┘
* │
* v
* done
*
*
* Below is a state machine diagram for attr set operations.
*
* It seems the challenge with understanding this system comes from trying to
* absorb the state machine all at once, when really one should only be looking
* at it with in the context of a single function. Once a state sensitive
* function is called, the idea is that it "takes ownership" of the
* state machine. It isn't concerned with the states that may have belonged to
* it's calling parent. Only the states relevant to itself or any other
* subroutines there in. Once a calling function hands off the state machine to
* a subroutine, it needs to respect the simple rule that it doesn't "own" the
* state machine anymore, and it's the responsibility of that calling function
* to propagate the -EAGAIN back up the call stack. Upon reentry, it is
* committed to re-calling that subroutine until it returns something other than
* -EAGAIN. Once that subroutine signals completion (by returning anything other
* than -EAGAIN), the calling function can resume using the state machine.
*
* xfs_attr_set_iter()
* │
* v
* ┌─y─ has an attr fork?
* │ |
* │ n
* │ |
* │ V
* │ add a fork
* │ │
* └──────────┤
* │
* V
* ┌─── is shortform?
* │ │
* │ y
* │ │
* │ V
* │ xfs_attr_set_fmt
* │ |
* │ V
* │ xfs_attr_try_sf_addname
* │ │
* │ V
* │ had enough ──y──> done
* │ space?
* n │
* │ n
* │ │
* │ V
* │ transform to leaf
* │ │
* │ V
* │ hold the leaf buffer
* │ │
* │ V
* │ return -EAGAIN
* │ Re-enter in
* │ leaf form
* │
* └─> release leaf buffer
* if needed
* │
* V
* ┌───n── fork has
* │ only 1 blk?
* │ │
* │ y
* │ │
* │ v
* │ xfs_attr_leaf_try_add()
* │ │
* │ v
* │ had enough ──────────────y─────────────┐
* │ space? │
* │ │ │
* │ n │
* │ │ │
* │ v │
* │ return -EAGAIN │
* │ re-enter in │
* │ node form │
* │ │ │
* └──────────┤ │
* │ │
* V │
* xfs_attr_node_addname_find_attr │
* determines if this │
* is create or rename │
* find space to store attr │
* │ │
* v │
* xfs_attr_node_addname │
* │ │
* v │
* fits in a node leaf? ────n─────┐ │
* │ ^ v │
* │ │ single leaf node? │
* │ │ │ │ │
* y │ y n │
* │ │ │ │ │
* v │ v v │
* update │ grow the leaf split if │
* hashvals └── return -EAGAIN needed │
* │ retry leaf add │ │
* │ on reentry │ │
* ├────────────────────────────┘ │
* │ │
* v │
* need to alloc │
* ┌─y── or flip flag? │
* │ │ │
* │ n │
* │ │ │
* │ v │
* │ done │
* │ │
* │ │
* │ XFS_DAS_FOUND_LBLK <────────────────┘
* │ │
* │ V
* │ xfs_attr_leaf_addname()
* │ │
* │ v
* │ ┌──first time through?
* │ │ │
* │ │ y
* │ │ │
* │ n v
* │ │ if we have rmt blks
* │ │ find space for them
* │ │ │
* │ └──────────┤
* │ │
* │ v
* │ still have
* │ ┌─n─ blks to alloc? <──┐
* │ │ │ │
* │ │ y │
* │ │ │ │
* │ │ v │
* │ │ alloc one blk │
* │ │ return -EAGAIN ──┘
* │ │ re-enter with one
* │ │ less blk to alloc
* │ │
* │ │
* │ └───> set the rmt
* │ value
* │ │
* │ v
* │ was this
* │ a rename? ──n─┐
* │ │ │
* │ y │
* │ │ │
* │ v │
* │ flip incomplete │
* │ flag │
* │ │ │
* │ v │
* │ XFS_DAS_FLIP_LFLAG │
* │ │ │
* │ v │
* │ need to remove │
* │ old bks? ──n──┤
* │ │ │
* │ y │
* │ │ │
* │ V │
* │ remove │
* │ ┌───> old blks │
* │ │ │ │
* │ XFS_DAS_RM_LBLK │ │
* │ ^ │ │
* │ │ v │
* │ └──y── more to │
* │ remove? │
* │ │ │
* │ n │
* │ │ │
* │ v │
* │ XFS_DAS_RD_LEAF │
* │ │ │
* │ v │
* │ remove leaf │
* │ │ │
* │ v │
* │ shrink to sf │
* │ if needed │
* │ │ │
* │ v │
* │ done <──────┘
* │
* └──────> XFS_DAS_FOUND_NBLK
* │
* v
* ┌─────n── need to
* │ alloc blks?
* │ │
* │ y
* │ │
* │ v
* │ find space
* │ │
* │ v
* │ ┌─>XFS_DAS_ALLOC_NODE
* │ │ │
* │ │ v
* │ │ alloc blk
* │ │ │
* │ │ v
* │ └──y── need to alloc
* │ more blocks?
* │ │
* │ n
* │ │
* │ v
* │ set the rmt value
* │ │
* │ v
* │ was this
* └────────> a rename? ──n─┐
* │ │
* y │
* │ │
* v │
* flip incomplete │
* flag │
* │ │
* v │
* XFS_DAS_FLIP_NFLAG │
* │ │
* v │
* need to │
* remove blks? ─n──┤
* │ │
* y │
* │ │
* v │
* remove │
* ┌────────> old blks │
* │ │ │
* XFS_DAS_RM_NBLK │ │
* ^ │ │
* │ v │
* └──────y── more to │
* remove │
* │ │
* n │
* │ │
* v │
* XFS_DAS_CLR_FLAG │
* │ │
* v │
* clear flags │
* │ │
* ├──────────┘
* │
* v
* done
*/
/*
* Enum values for xfs_delattr_context.da_state
*
* These values are used by delayed attribute operations to keep track of where
* they were before they returned -EAGAIN. A return code of -EAGAIN signals the
* calling function to roll the transaction, and then call the subroutine to
* finish the operation. The enum is then used by the subroutine to jump back
* to where it was and resume executing where it left off.
*/
enum xfs_delattr_state {
XFS_DAS_UNINIT = 0, /* No state has been set yet */
XFS_DAS_RMTBLK, /* Removing remote blks */
XFS_DAS_RM_NAME, /* Remove attr name */
XFS_DAS_RM_SHRINK, /* We are shrinking the tree */
XFS_DAS_FOUND_LBLK, /* We found leaf blk for attr */
XFS_DAS_FOUND_NBLK, /* We found node blk for attr */
XFS_DAS_FLIP_LFLAG, /* Flipped leaf INCOMPLETE attr flag */
XFS_DAS_RM_LBLK, /* A rename is removing leaf blocks */
XFS_DAS_RD_LEAF, /* Read in the new leaf */
XFS_DAS_ALLOC_NODE, /* We are allocating node blocks */
XFS_DAS_FLIP_NFLAG, /* Flipped node INCOMPLETE attr flag */
XFS_DAS_RM_NBLK, /* A rename is removing node blocks */
XFS_DAS_CLR_FLAG, /* Clear incomplete flag */
};
/*
* Defines for xfs_delattr_context.flags
*/
#define XFS_DAC_DEFER_FINISH 0x01 /* finish the transaction */
#define XFS_DAC_LEAF_ADDNAME_INIT 0x02 /* xfs_attr_leaf_addname init*/
/*
* Context used for keeping track of delayed attribute operations
*/
struct xfs_delattr_context {
struct xfs_da_args *da_args;
/* Used in xfs_attr_rmtval_set_blk to roll through allocating blocks */
struct xfs_bmbt_irec map;
xfs_dablk_t lblkno;
int blkcnt;
/* Used in xfs_attr_node_removename to roll through removing blocks */
struct xfs_da_state *da_state;
/* Used to keep track of current state of delayed operation */
unsigned int flags;
enum xfs_delattr_state dela_state;
};
/*========================================================================
* Function prototypes for the kernel.
*========================================================================*/
@ -92,6 +492,9 @@ int xfs_attr_set(struct xfs_da_args *args);
int xfs_attr_set_args(struct xfs_da_args *args);
int xfs_has_attr(struct xfs_da_args *args);
int xfs_attr_remove_args(struct xfs_da_args *args);
int xfs_attr_remove_iter(struct xfs_delattr_context *dac);
bool xfs_attr_namecheck(const void *name, size_t length);
void xfs_delattr_context_init(struct xfs_delattr_context *dac,
struct xfs_da_args *args);
#endif /* __XFS_ATTR_H__ */

5
fs/xfs/libxfs/xfs_attr_leaf.c
View File

@ -19,14 +19,15 @@
#include "xfs_bmap_btree.h"
#include "xfs_bmap.h"
#include "xfs_attr_sf.h"
#include "xfs_attr_remote.h"
#include "xfs_attr.h"
#include "xfs_attr_remote.h"
#include "xfs_attr_leaf.h"
#include "xfs_error.h"
#include "xfs_trace.h"
#include "xfs_buf_item.h"
#include "xfs_dir2.h"
#include "xfs_log.h"
#include "xfs_ag.h"
/*
@ -773,7 +774,7 @@ xfs_attr_fork_remove(
* Remove an attribute from the shortform attribute list structure.
*/
int
xfs_attr_shortform_remove(
xfs_attr_sf_removename(
struct xfs_da_args *args)
{
struct xfs_attr_shortform *sf;

2
fs/xfs/libxfs/xfs_attr_leaf.h
View File

@ -51,7 +51,7 @@ int xfs_attr_shortform_lookup(struct xfs_da_args *args);
int xfs_attr_shortform_getvalue(struct xfs_da_args *args);
int xfs_attr_shortform_to_leaf(struct xfs_da_args *args,
struct xfs_buf **leaf_bp);
int xfs_attr_shortform_remove(struct xfs_da_args *args);
int xfs_attr_sf_removename(struct xfs_da_args *args);
int xfs_attr_sf_findname(struct xfs_da_args *args,
struct xfs_attr_sf_entry **sfep,
unsigned int *basep);

167
fs/xfs/libxfs/xfs_attr_remote.c
View File

@ -439,9 +439,9 @@ xfs_attr_rmtval_get(
/*
* Find a "hole" in the attribute address space large enough for us to drop the
* new attribute's value into
* new attributes value into
*/
STATIC int
int
xfs_attr_rmt_find_hole(
struct xfs_da_args *args)
{
@ -468,7 +468,7 @@ xfs_attr_rmt_find_hole(
return 0;
}
STATIC int
int
xfs_attr_rmtval_set_value(
struct xfs_da_args *args)
{
@ -562,69 +562,66 @@ xfs_attr_rmtval_stale(
}
/*
* Write the value associated with an attribute into the out-of-line buffer
* that we have defined for it.
* Find a hole for the attr and store it in the delayed attr context. This
* initializes the context to roll through allocating an attr extent for a
* delayed attr operation
*/
int
xfs_attr_rmtval_set(
struct xfs_da_args *args)
xfs_attr_rmtval_find_space(
struct xfs_delattr_context *dac)
{
struct xfs_inode *dp = args->dp;
struct xfs_bmbt_irec map;
xfs_dablk_t lblkno;
int blkcnt;
int nmap;
int error;
struct xfs_da_args *args = dac->da_args;
struct xfs_bmbt_irec *map = &dac->map;
int error;
trace_xfs_attr_rmtval_set(args);
dac->lblkno = 0;
dac->blkcnt = 0;
args->rmtblkcnt = 0;
args->rmtblkno = 0;
memset(map, 0, sizeof(struct xfs_bmbt_irec));
error = xfs_attr_rmt_find_hole(args);
if (error)
return error;
blkcnt = args->rmtblkcnt;
lblkno = (xfs_dablk_t)args->rmtblkno;
/*
* Roll through the "value", allocating blocks on disk as required.
*/
while (blkcnt > 0) {
/*
* Allocate a single extent, up to the size of the value.
*
* Note that we have to consider this a data allocation as we
* write the remote attribute without logging the contents.
* Hence we must ensure that we aren't using blocks that are on
* the busy list so that we don't overwrite blocks which have
* recently been freed but their transactions are not yet
* committed to disk. If we overwrite the contents of a busy
* extent and then crash then the block may not contain the
* correct metadata after log recovery occurs.
*/
nmap = 1;
error = xfs_bmapi_write(args->trans, dp, (xfs_fileoff_t)lblkno,
blkcnt, XFS_BMAPI_ATTRFORK, args->total, &map,
&nmap);
if (error)
return error;
error = xfs_defer_finish(&args->trans);
if (error)
return error;
dac->blkcnt = args->rmtblkcnt;
dac->lblkno = args->rmtblkno;
ASSERT(nmap == 1);
ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
(map.br_startblock != HOLESTARTBLOCK));
lblkno += map.br_blockcount;
blkcnt -= map.br_blockcount;
return 0;
}
/*
* Start the next trans in the chain.
*/
error = xfs_trans_roll_inode(&args->trans, dp);
if (error)
return error;
}
/*
* Write one block of the value associated with an attribute into the
* out-of-line buffer that we have defined for it. This is similar to a subset
* of xfs_attr_rmtval_set, but records the current block to the delayed attr
* context, and leaves transaction handling to the caller.
*/
int
xfs_attr_rmtval_set_blk(
struct xfs_delattr_context *dac)
{
struct xfs_da_args *args = dac->da_args;
struct xfs_inode *dp = args->dp;
struct xfs_bmbt_irec *map = &dac->map;
int nmap;
int error;
return xfs_attr_rmtval_set_value(args);
nmap = 1;
error = xfs_bmapi_write(args->trans, dp, (xfs_fileoff_t)dac->lblkno,
dac->blkcnt, XFS_BMAPI_ATTRFORK, args->total,
map, &nmap);
if (error)
return error;
ASSERT(nmap == 1);
ASSERT((map->br_startblock != DELAYSTARTBLOCK) &&
(map->br_startblock != HOLESTARTBLOCK));
/* roll attribute extent map forwards */
dac->lblkno += map->br_blockcount;
dac->blkcnt -= map->br_blockcount;
return 0;
}
/*
@ -668,48 +665,18 @@ xfs_attr_rmtval_invalidate(
return 0;
}
/*
* Remove the value associated with an attribute by deleting the
* out-of-line buffer that it is stored on.
*/
int
xfs_attr_rmtval_remove(
struct xfs_da_args *args)
{
int error;
int retval;
trace_xfs_attr_rmtval_remove(args);
/*
* Keep de-allocating extents until the remote-value region is gone.
*/
do {
retval = __xfs_attr_rmtval_remove(args);
if (retval && retval != -EAGAIN)
return retval;
/*
* Close out trans and start the next one in the chain.
*/
error = xfs_trans_roll_inode(&args->trans, args->dp);
if (error)
return error;
} while (retval == -EAGAIN);
return 0;
}
/*
* Remove the value associated with an attribute by deleting the out-of-line
* buffer that it is stored on. Returns EAGAIN for the caller to refresh the
* transaction and re-call the function
* buffer that it is stored on. Returns -EAGAIN for the caller to refresh the
* transaction and re-call the function. Callers should keep calling this
* routine until it returns something other than -EAGAIN.
*/
int
__xfs_attr_rmtval_remove(
struct xfs_da_args *args)
struct xfs_delattr_context *dac)
{
int error, done;
struct xfs_da_args *args = dac->da_args;
int error, done;
/*
* Unmap value blocks for this attr.
@ -719,12 +686,20 @@ __xfs_attr_rmtval_remove(
if (error)
return error;
error = xfs_defer_finish(&args->trans);
if (error)
return error;
if (!done)
/*
* We don't need an explicit state here to pick up where we left off. We
* can figure it out using the !done return code. The actual value of
* attr->xattri_dela_state may be some value reminiscent of the calling
* function, but it's value is irrelevant with in the context of this
* function. Once we are done here, the next state is set as needed by
* the parent
*/
if (!done) {
dac->flags |= XFS_DAC_DEFER_FINISH;
return -EAGAIN;
}
return error;
args->rmtblkno = 0;
args->rmtblkcnt = 0;
return 0;
}

8
fs/xfs/libxfs/xfs_attr_remote.h
View File

@ -9,10 +9,12 @@
int xfs_attr3_rmt_blocks(struct xfs_mount *mp, int attrlen);
int xfs_attr_rmtval_get(struct xfs_da_args *args);
int xfs_attr_rmtval_set(struct xfs_da_args *args);
int xfs_attr_rmtval_remove(struct xfs_da_args *args);
int xfs_attr_rmtval_stale(struct xfs_inode *ip, struct xfs_bmbt_irec *map,
xfs_buf_flags_t incore_flags);
int xfs_attr_rmtval_invalidate(struct xfs_da_args *args);
int __xfs_attr_rmtval_remove(struct xfs_da_args *args);
int __xfs_attr_rmtval_remove(struct xfs_delattr_context *dac);
int xfs_attr_rmt_find_hole(struct xfs_da_args *args);
int xfs_attr_rmtval_set_value(struct xfs_da_args *args);
int xfs_attr_rmtval_set_blk(struct xfs_delattr_context *dac);
int xfs_attr_rmtval_find_space(struct xfs_delattr_context *dac);
#endif /* __XFS_ATTR_REMOTE_H__ */

3
fs/xfs/libxfs/xfs_bmap.c
View File

@ -31,6 +31,7 @@
#include "xfs_attr_leaf.h"
#include "xfs_filestream.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
#include "xfs_refcount.h"
#include "xfs_icache.h"
@ -1028,7 +1029,7 @@ xfs_bmap_add_attrfork_local(
/*
* Set an inode attr fork offset based on the format of the data fork.
*/
int
static int
xfs_bmap_set_attrforkoff(
struct xfs_inode *ip,
int size,

1
fs/xfs/libxfs/xfs_bmap.h
View File

@ -187,7 +187,6 @@ void xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno,
xfs_filblks_t len);
unsigned int xfs_bmap_compute_attr_offset(struct xfs_mount *mp);
int xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd);
int xfs_bmap_set_attrforkoff(struct xfs_inode *ip, int size, int *version);
void xfs_bmap_local_to_extents_empty(struct xfs_trans *tp,
struct xfs_inode *ip, int whichfork);
void __xfs_bmap_add_free(struct xfs_trans *tp, xfs_fsblock_t bno,

15
fs/xfs/libxfs/xfs_btree.c
View File

@ -21,6 +21,7 @@
#include "xfs_alloc.h"
#include "xfs_log.h"
#include "xfs_btree_staging.h"
#include "xfs_ag.h"
/*
* Cursor allocation zone.
@ -215,7 +216,7 @@ xfs_btree_check_sptr(
{
if (level <= 0)
return false;
return xfs_verify_agbno(cur->bc_mp, cur->bc_ag.agno, agbno);
return xfs_verify_agbno(cur->bc_mp, cur->bc_ag.pag->pag_agno, agbno);
}
/*
@ -244,7 +245,7 @@ xfs_btree_check_ptr(
return 0;
xfs_err(cur->bc_mp,
"AG %u: Corrupt btree %d pointer at level %d index %d.",
cur->bc_ag.agno, cur->bc_btnum,
cur->bc_ag.pag->pag_agno, cur->bc_btnum,
level, index);
}
@ -376,6 +377,8 @@ xfs_btree_del_cursor(
XFS_FORCED_SHUTDOWN(cur->bc_mp));
if (unlikely(cur->bc_flags & XFS_BTREE_STAGING))
kmem_free(cur->bc_ops);
if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS) && cur->bc_ag.pag)
xfs_perag_put(cur->bc_ag.pag);
kmem_cache_free(xfs_btree_cur_zone, cur);
}
@ -885,13 +888,13 @@ xfs_btree_readahead_sblock(
if ((lr & XFS_BTCUR_LEFTRA) && left != NULLAGBLOCK) {
xfs_btree_reada_bufs(cur->bc_mp, cur->bc_ag.agno,
xfs_btree_reada_bufs(cur->bc_mp, cur->bc_ag.pag->pag_agno,
left, 1, cur->bc_ops->buf_ops);
rval++;
}
if ((lr & XFS_BTCUR_RIGHTRA) && right != NULLAGBLOCK) {
xfs_btree_reada_bufs(cur->bc_mp, cur->bc_ag.agno,
xfs_btree_reada_bufs(cur->bc_mp, cur->bc_ag.pag->pag_agno,
right, 1, cur->bc_ops->buf_ops);
rval++;
}
@ -949,7 +952,7 @@ xfs_btree_ptr_to_daddr(
*daddr = XFS_FSB_TO_DADDR(cur->bc_mp, fsbno);
} else {
agbno = be32_to_cpu(ptr->s);
*daddr = XFS_AGB_TO_DADDR(cur->bc_mp, cur->bc_ag.agno,
*daddr = XFS_AGB_TO_DADDR(cur->bc_mp, cur->bc_ag.pag->pag_agno,
agbno);
}
@ -1150,7 +1153,7 @@ xfs_btree_init_block_cur(
if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
owner = cur->bc_ino.ip->i_ino;
else
owner = cur->bc_ag.agno;
owner = cur->bc_ag.pag->pag_agno;
xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
cur->bc_btnum, level, numrecs,

10
fs/xfs/libxfs/xfs_btree.h
View File

@ -11,6 +11,7 @@ struct xfs_inode;
struct xfs_mount;
struct xfs_trans;
struct xfs_ifork;
struct xfs_perag;
extern kmem_zone_t *xfs_btree_cur_zone;
@ -180,11 +181,11 @@ union xfs_btree_irec {
/* Per-AG btree information. */
struct xfs_btree_cur_ag {
struct xfs_perag *pag;
union {
struct xfs_buf *agbp;
struct xbtree_afakeroot *afake; /* for staging cursor */
};
xfs_agnumber_t agno;
union {
struct {
unsigned long nr_ops; /* # record updates */
@ -231,6 +232,13 @@ typedef struct xfs_btree_cur
uint8_t bc_blocklog; /* log2(blocksize) of btree blocks */
xfs_btnum_t bc_btnum; /* identifies which btree type */
int bc_statoff; /* offset of btre stats array */
/*
* Short btree pointers need an agno to be able to turn the pointers
* into physical addresses for IO, so the btree cursor switches between
* bc_ino and bc_ag based on whether XFS_BTREE_LONG_PTRS is set for the
* cursor.
*/
union {
struct xfs_btree_cur_ag bc_ag;
struct xfs_btree_cur_ino bc_ino;

641
fs/xfs/libxfs/xfs_ialloc.c
View File

File diff suppressed because it is too large Load Diff

40
fs/xfs/libxfs/xfs_ialloc.h
View File

@ -33,42 +33,14 @@ xfs_make_iptr(struct xfs_mount *mp, struct xfs_buf *b, int o)
}
/*
* Allocate an inode on disk.
* Mode is used to tell whether the new inode will need space, and whether
* it is a directory.
*
* There are two phases to inode allocation: selecting an AG and ensuring
* that it contains free inodes, followed by allocating one of the free
* inodes. xfs_dialloc_select_ag() does the former and returns a locked AGI
* to the caller, ensuring that followup call to xfs_dialloc_ag() will
* have free inodes to allocate from. xfs_dialloc_ag() will return the inode
* number of the free inode we allocated.
* Allocate an inode on disk. Mode is used to tell whether the new inode will
* need space, and whether it is a directory.
*/
int /* error */
xfs_dialloc_select_ag(
struct xfs_trans **tpp, /* double pointer of transaction */
xfs_ino_t parent, /* parent inode (directory) */
umode_t mode, /* mode bits for new inode */
struct xfs_buf **IO_agbp);
int xfs_dialloc(struct xfs_trans **tpp, xfs_ino_t parent, umode_t mode,
xfs_ino_t *new_ino);
int
xfs_dialloc_ag(
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_ino_t parent,
xfs_ino_t *inop);
/*
* Free disk inode. Carefully avoids touching the incore inode, all
* manipulations incore are the caller's responsibility.
* The on-disk inode is not changed by this operation, only the
* btree (free inode mask) is changed.
*/
int /* error */
xfs_difree(
struct xfs_trans *tp, /* transaction pointer */
xfs_ino_t inode, /* inode to be freed */
struct xfs_icluster *ifree); /* cluster info if deleted */
int xfs_difree(struct xfs_trans *tp, struct xfs_perag *pag,
xfs_ino_t ino, struct xfs_icluster *ifree);
/*
* Return the location of the inode in imap, for mapping it into a buffer.

46
fs/xfs/libxfs/xfs_ialloc_btree.c
View File

@ -20,6 +20,7 @@
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
STATIC int
xfs_inobt_get_minrecs(
@ -34,8 +35,7 @@ xfs_inobt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_inobt_init_cursor(cur->bc_mp, cur->bc_tp,
cur->bc_ag.agbp, cur->bc_ag.agno,
cur->bc_btnum);
cur->bc_ag.agbp, cur->bc_ag.pag, cur->bc_btnum);
}
STATIC void
@ -102,7 +102,7 @@ __xfs_inobt_alloc_block(
args.tp = cur->bc_tp;
args.mp = cur->bc_mp;
args.oinfo = XFS_RMAP_OINFO_INOBT;
args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_ag.agno, sbno);
args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_ag.pag->pag_agno, sbno);
args.minlen = 1;
args.maxlen = 1;
args.prod = 1;
@ -235,7 +235,7 @@ xfs_inobt_init_ptr_from_cur(
{
struct xfs_agi *agi = cur->bc_ag.agbp->b_addr;
ASSERT(cur->bc_ag.agno == be32_to_cpu(agi->agi_seqno));
ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agi->agi_seqno));
ptr->s = agi->agi_root;
}
@ -247,7 +247,7 @@ xfs_finobt_init_ptr_from_cur(
{
struct xfs_agi *agi = cur->bc_ag.agbp->b_addr;
ASSERT(cur->bc_ag.agno == be32_to_cpu(agi->agi_seqno));
ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agi->agi_seqno));
ptr->s = agi->agi_free_root;
}
@ -427,7 +427,7 @@ static struct xfs_btree_cur *
xfs_inobt_init_common(
struct xfs_mount *mp, /* file system mount point */
struct xfs_trans *tp, /* transaction pointer */
xfs_agnumber_t agno, /* allocation group number */
struct xfs_perag *pag,
xfs_btnum_t btnum) /* ialloc or free ino btree */
{
struct xfs_btree_cur *cur;
@ -449,7 +449,9 @@ xfs_inobt_init_common(
if (xfs_sb_version_hascrc(&mp->m_sb))
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
cur->bc_ag.agno = agno;
/* take a reference for the cursor */
atomic_inc(&pag->pag_ref);
cur->bc_ag.pag = pag;
return cur;
}
@ -459,13 +461,13 @@ xfs_inobt_init_cursor(
struct xfs_mount *mp,
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;
struct xfs_agi *agi = agbp->b_addr;
cur = xfs_inobt_init_common(mp, tp, agno, btnum);
cur = xfs_inobt_init_common(mp, tp, pag, btnum);
if (btnum == XFS_BTNUM_INO)
cur->bc_nlevels = be32_to_cpu(agi->agi_level);
else
@ -479,12 +481,12 @@ struct xfs_btree_cur *
xfs_inobt_stage_cursor(
struct xfs_mount *mp,
struct xbtree_afakeroot *afake,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;
cur = xfs_inobt_init_common(mp, NULL, agno, btnum);
cur = xfs_inobt_init_common(mp, NULL, pag, btnum);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}
@ -656,7 +658,7 @@ int
xfs_inobt_cur(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t which,
struct xfs_btree_cur **curpp,
struct xfs_buf **agi_bpp)
@ -667,11 +669,11 @@ xfs_inobt_cur(
ASSERT(*agi_bpp == NULL);
ASSERT(*curpp == NULL);
error = xfs_ialloc_read_agi(mp, tp, agno, agi_bpp);
error = xfs_ialloc_read_agi(mp, tp, pag->pag_agno, agi_bpp);
if (error)
return error;
cur = xfs_inobt_init_cursor(mp, tp, *agi_bpp, agno, which);
cur = xfs_inobt_init_cursor(mp, tp, *agi_bpp, pag, which);
*curpp = cur;
return 0;
}
@ -680,7 +682,7 @@ static int
xfs_inobt_count_blocks(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum,
xfs_extlen_t *tree_blocks)
{
@ -688,7 +690,7 @@ xfs_inobt_count_blocks(
struct xfs_btree_cur *cur = NULL;
int error;
error = xfs_inobt_cur(mp, tp, agno, btnum, &cur, &agbp);
error = xfs_inobt_cur(mp, tp, pag, btnum, &cur, &agbp);
if (error)
return error;
@ -704,14 +706,14 @@ static int
xfs_finobt_read_blocks(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_extlen_t *tree_blocks)
{
struct xfs_buf *agbp;
struct xfs_agi *agi;
int error;
error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
error = xfs_ialloc_read_agi(mp, tp, pag->pag_agno, &agbp);
if (error)
return error;
@ -728,7 +730,7 @@ int
xfs_finobt_calc_reserves(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_extlen_t *ask,
xfs_extlen_t *used)
{
@ -739,14 +741,14 @@ xfs_finobt_calc_reserves(
return 0;
if (xfs_sb_version_hasinobtcounts(&mp->m_sb))
error = xfs_finobt_read_blocks(mp, tp, agno, &tree_len);
error = xfs_finobt_read_blocks(mp, tp, pag, &tree_len);
else
error = xfs_inobt_count_blocks(mp, tp, agno, XFS_BTNUM_FINO,
error = xfs_inobt_count_blocks(mp, tp, pag, XFS_BTNUM_FINO,
&tree_len);
if (error)
return error;
*ask += xfs_inobt_max_size(mp, agno);
*ask += xfs_inobt_max_size(mp, pag->pag_agno);
*used += tree_len;
return 0;
}

13
fs/xfs/libxfs/xfs_ialloc_btree.h
View File

@ -13,6 +13,7 @@
struct xfs_buf;
struct xfs_btree_cur;
struct xfs_mount;
struct xfs_perag;
/*
* Btree block header size depends on a superblock flag.
@ -45,11 +46,11 @@ struct xfs_mount;
(maxrecs) * sizeof(xfs_inobt_key_t) + \
((index) - 1) * sizeof(xfs_inobt_ptr_t)))
extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *,
struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t,
xfs_btnum_t);
extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *mp,
struct xfs_trans *tp, struct xfs_buf *agbp,
struct xfs_perag *pag, xfs_btnum_t btnum);
struct xfs_btree_cur *xfs_inobt_stage_cursor(struct xfs_mount *mp,
struct xbtree_afakeroot *afake, xfs_agnumber_t agno,
struct xbtree_afakeroot *afake, struct xfs_perag *pag,
xfs_btnum_t btnum);
extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int);
@ -64,11 +65,11 @@ int xfs_inobt_rec_check_count(struct xfs_mount *,
#endif /* DEBUG */
int xfs_finobt_calc_reserves(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
struct xfs_perag *pag, xfs_extlen_t *ask, xfs_extlen_t *used);
extern xfs_extlen_t xfs_iallocbt_calc_size(struct xfs_mount *mp,
unsigned long long len);
int xfs_inobt_cur(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno, xfs_btnum_t btnum,
struct xfs_perag *pag, xfs_btnum_t btnum,
struct xfs_btree_cur **curpp, struct xfs_buf **agi_bpp);
void xfs_inobt_commit_staged_btree(struct xfs_btree_cur *cur,

2
fs/xfs/libxfs/xfs_inode_buf.c
View File

@ -612,7 +612,7 @@ xfs_inode_validate_extsize(
*/
if (rt_flag)
blocksize_bytes = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
blocksize_bytes = XFS_FSB_TO_B(mp, mp->m_sb.sb_rextsize);
else
blocksize_bytes = mp->m_sb.sb_blocksize;

3
fs/xfs/libxfs/xfs_log_format.h
View File

@ -34,9 +34,6 @@ typedef uint32_t xlog_tid_t;
#define XLOG_MIN_RECORD_BSHIFT 14 /* 16384 == 1 << 14 */
#define XLOG_BIG_RECORD_BSHIFT 15 /* 32k == 1 << 15 */
#define XLOG_MAX_RECORD_BSHIFT 18 /* 256k == 1 << 18 */
#define XLOG_BTOLSUNIT(log, b) (((b)+(log)->l_mp->m_sb.sb_logsunit-1) / \
(log)->l_mp->m_sb.sb_logsunit)
#define XLOG_LSUNITTOB(log, su) ((su) * (log)->l_mp->m_sb.sb_logsunit)
#define XLOG_HEADER_SIZE 512

122
fs/xfs/libxfs/xfs_refcount.c
View File

@ -22,6 +22,7 @@
#include "xfs_bit.h"
#include "xfs_refcount.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
/* Allowable refcount adjustment amounts. */
enum xfs_refc_adjust_op {
@ -46,7 +47,7 @@ xfs_refcount_lookup_le(
xfs_agblock_t bno,
int *stat)
{
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.agno, bno,
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.pag->pag_agno, bno,
XFS_LOOKUP_LE);
cur->bc_rec.rc.rc_startblock = bno;
cur->bc_rec.rc.rc_blockcount = 0;
@ -63,7 +64,7 @@ xfs_refcount_lookup_ge(
xfs_agblock_t bno,
int *stat)
{
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.agno, bno,
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.pag->pag_agno, bno,
XFS_LOOKUP_GE);
cur->bc_rec.rc.rc_startblock = bno;
cur->bc_rec.rc.rc_blockcount = 0;
@ -80,7 +81,7 @@ xfs_refcount_lookup_eq(
xfs_agblock_t bno,
int *stat)
{
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.agno, bno,
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.pag->pag_agno, bno,
XFS_LOOKUP_LE);
cur->bc_rec.rc.rc_startblock = bno;
cur->bc_rec.rc.rc_blockcount = 0;
@ -108,7 +109,7 @@ xfs_refcount_get_rec(
int *stat)
{
struct xfs_mount *mp = cur->bc_mp;
xfs_agnumber_t agno = cur->bc_ag.agno;
xfs_agnumber_t agno = cur->bc_ag.pag->pag_agno;
union xfs_btree_rec *rec;
int error;
xfs_agblock_t realstart;
@ -119,7 +120,7 @@ xfs_refcount_get_rec(
xfs_refcount_btrec_to_irec(rec, irec);
agno = cur->bc_ag.agno;
agno = cur->bc_ag.pag->pag_agno;
if (irec->rc_blockcount == 0 || irec->rc_blockcount > MAXREFCEXTLEN)
goto out_bad_rec;
@ -144,7 +145,7 @@ xfs_refcount_get_rec(
if (irec->rc_refcount == 0 || irec->rc_refcount > MAXREFCOUNT)
goto out_bad_rec;
trace_xfs_refcount_get(cur->bc_mp, cur->bc_ag.agno, irec);
trace_xfs_refcount_get(cur->bc_mp, cur->bc_ag.pag->pag_agno, irec);
return 0;
out_bad_rec:
@ -169,14 +170,14 @@ xfs_refcount_update(
union xfs_btree_rec rec;
int error;
trace_xfs_refcount_update(cur->bc_mp, cur->bc_ag.agno, irec);
trace_xfs_refcount_update(cur->bc_mp, cur->bc_ag.pag->pag_agno, irec);
rec.refc.rc_startblock = cpu_to_be32(irec->rc_startblock);
rec.refc.rc_blockcount = cpu_to_be32(irec->rc_blockcount);
rec.refc.rc_refcount = cpu_to_be32(irec->rc_refcount);
error = xfs_btree_update(cur, &rec);
if (error)
trace_xfs_refcount_update_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -193,7 +194,7 @@ xfs_refcount_insert(
{
int error;
trace_xfs_refcount_insert(cur->bc_mp, cur->bc_ag.agno, irec);
trace_xfs_refcount_insert(cur->bc_mp, cur->bc_ag.pag->pag_agno, irec);
cur->bc_rec.rc.rc_startblock = irec->rc_startblock;
cur->bc_rec.rc.rc_blockcount = irec->rc_blockcount;
cur->bc_rec.rc.rc_refcount = irec->rc_refcount;
@ -208,7 +209,7 @@ xfs_refcount_insert(
out_error:
if (error)
trace_xfs_refcount_insert_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -234,7 +235,7 @@ xfs_refcount_delete(
error = -EFSCORRUPTED;
goto out_error;
}
trace_xfs_refcount_delete(cur->bc_mp, cur->bc_ag.agno, &irec);
trace_xfs_refcount_delete(cur->bc_mp, cur->bc_ag.pag->pag_agno, &irec);
error = xfs_btree_delete(cur, i);
if (XFS_IS_CORRUPT(cur->bc_mp, *i != 1)) {
error = -EFSCORRUPTED;
@ -246,7 +247,7 @@ xfs_refcount_delete(
out_error:
if (error)
trace_xfs_refcount_delete_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -366,7 +367,7 @@ xfs_refcount_split_extent(
return 0;
*shape_changed = true;
trace_xfs_refcount_split_extent(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_split_extent(cur->bc_mp, cur->bc_ag.pag->pag_agno,
&rcext, agbno);
/* Establish the right extent. */
@ -391,7 +392,7 @@ xfs_refcount_split_extent(
out_error:
trace_xfs_refcount_split_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -411,7 +412,7 @@ xfs_refcount_merge_center_extents(
int found_rec;
trace_xfs_refcount_merge_center_extents(cur->bc_mp,
cur->bc_ag.agno, left, center, right);
cur->bc_ag.pag->pag_agno, left, center, right);
/*
* Make sure the center and right extents are not in the btree.
@ -468,7 +469,7 @@ xfs_refcount_merge_center_extents(
out_error:
trace_xfs_refcount_merge_center_extents_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -487,7 +488,7 @@ xfs_refcount_merge_left_extent(
int found_rec;
trace_xfs_refcount_merge_left_extent(cur->bc_mp,
cur->bc_ag.agno, left, cleft);
cur->bc_ag.pag->pag_agno, left, cleft);
/* If the extent at agbno (cleft) wasn't synthesized, remove it. */
if (cleft->rc_refcount > 1) {
@ -530,7 +531,7 @@ xfs_refcount_merge_left_extent(
out_error:
trace_xfs_refcount_merge_left_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -548,7 +549,7 @@ xfs_refcount_merge_right_extent(
int found_rec;
trace_xfs_refcount_merge_right_extent(cur->bc_mp,
cur->bc_ag.agno, cright, right);
cur->bc_ag.pag->pag_agno, cright, right);
/*
* If the extent ending at agbno+aglen (cright) wasn't synthesized,
@ -594,7 +595,7 @@ xfs_refcount_merge_right_extent(
out_error:
trace_xfs_refcount_merge_right_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -679,13 +680,13 @@ xfs_refcount_find_left_extents(
cleft->rc_blockcount = aglen;
cleft->rc_refcount = 1;
}
trace_xfs_refcount_find_left_extent(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_find_left_extent(cur->bc_mp, cur->bc_ag.pag->pag_agno,
left, cleft, agbno);
return error;
out_error:
trace_xfs_refcount_find_left_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -768,13 +769,13 @@ xfs_refcount_find_right_extents(
cright->rc_blockcount = aglen;
cright->rc_refcount = 1;
}
trace_xfs_refcount_find_right_extent(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_find_right_extent(cur->bc_mp, cur->bc_ag.pag->pag_agno,
cright, right, agbno + aglen);
return error;
out_error:
trace_xfs_refcount_find_right_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -952,7 +953,7 @@ xfs_refcount_adjust_extents(
ext.rc_startblock - *agbno);
tmp.rc_refcount = 1 + adj;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.agno, &tmp);
cur->bc_ag.pag->pag_agno, &tmp);
/*
* Either cover the hole (increment) or
@ -971,7 +972,7 @@ xfs_refcount_adjust_extents(
cur->bc_ag.refc.nr_ops++;
} else {
fsbno = XFS_AGB_TO_FSB(cur->bc_mp,
cur->bc_ag.agno,
cur->bc_ag.pag->pag_agno,
tmp.rc_startblock);
xfs_bmap_add_free(cur->bc_tp, fsbno,
tmp.rc_blockcount, oinfo);
@ -998,7 +999,7 @@ xfs_refcount_adjust_extents(
goto skip;
ext.rc_refcount += adj;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.agno, &ext);
cur->bc_ag.pag->pag_agno, &ext);
if (ext.rc_refcount > 1) {
error = xfs_refcount_update(cur, &ext);
if (error)
@ -1016,7 +1017,7 @@ xfs_refcount_adjust_extents(
goto advloop;
} else {
fsbno = XFS_AGB_TO_FSB(cur->bc_mp,
cur->bc_ag.agno,
cur->bc_ag.pag->pag_agno,
ext.rc_startblock);
xfs_bmap_add_free(cur->bc_tp, fsbno, ext.rc_blockcount,
oinfo);
@ -1035,7 +1036,7 @@ advloop:
return error;
out_error:
trace_xfs_refcount_modify_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -1057,10 +1058,10 @@ xfs_refcount_adjust(
*new_agbno = agbno;
*new_aglen = aglen;
if (adj == XFS_REFCOUNT_ADJUST_INCREASE)
trace_xfs_refcount_increase(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_increase(cur->bc_mp, cur->bc_ag.pag->pag_agno,
agbno, aglen);
else
trace_xfs_refcount_decrease(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_decrease(cur->bc_mp, cur->bc_ag.pag->pag_agno,
agbno, aglen);
/*
@ -1099,7 +1100,7 @@ xfs_refcount_adjust(
return 0;
out_error:
trace_xfs_refcount_adjust_error(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_adjust_error(cur->bc_mp, cur->bc_ag.pag->pag_agno,
error, _RET_IP_);
return error;
}
@ -1142,30 +1143,30 @@ xfs_refcount_finish_one(
struct xfs_btree_cur *rcur;
struct xfs_buf *agbp = NULL;
int error = 0;
xfs_agnumber_t agno;
xfs_agblock_t bno;
xfs_agblock_t new_agbno;
unsigned long nr_ops = 0;
int shape_changes = 0;
struct xfs_perag *pag;
agno = XFS_FSB_TO_AGNO(mp, startblock);
ASSERT(agno != NULLAGNUMBER);
pag = xfs_perag_get(mp, XFS_FSB_TO_AGNO(mp, startblock));
bno = XFS_FSB_TO_AGBNO(mp, startblock);
trace_xfs_refcount_deferred(mp, XFS_FSB_TO_AGNO(mp, startblock),
type, XFS_FSB_TO_AGBNO(mp, startblock),
blockcount);
if (XFS_TEST_ERROR(false, mp,
XFS_ERRTAG_REFCOUNT_FINISH_ONE))
return -EIO;
if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_REFCOUNT_FINISH_ONE)) {
error = -EIO;
goto out_drop;
}
/*
* If we haven't gotten a cursor or the cursor AG doesn't match
* the startblock, get one now.
*/
rcur = *pcur;
if (rcur != NULL && rcur->bc_ag.agno != agno) {
if (rcur != NULL && rcur->bc_ag.pag != pag) {
nr_ops = rcur->bc_ag.refc.nr_ops;
shape_changes = rcur->bc_ag.refc.shape_changes;
xfs_refcount_finish_one_cleanup(tp, rcur, 0);
@ -1173,12 +1174,12 @@ xfs_refcount_finish_one(
*pcur = NULL;
}
if (rcur == NULL) {
error = xfs_alloc_read_agf(tp->t_mountp, tp, agno,
error = xfs_alloc_read_agf(tp->t_mountp, tp, pag->pag_agno,
XFS_ALLOC_FLAG_FREEING, &agbp);
if (error)
return error;
goto out_drop;
rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno);
rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, pag);
rcur->bc_ag.refc.nr_ops = nr_ops;
rcur->bc_ag.refc.shape_changes = shape_changes;
}
@ -1188,12 +1189,12 @@ xfs_refcount_finish_one(
case XFS_REFCOUNT_INCREASE:
error = xfs_refcount_adjust(rcur, bno, blockcount, &new_agbno,
new_len, XFS_REFCOUNT_ADJUST_INCREASE, NULL);
*new_fsb = XFS_AGB_TO_FSB(mp, agno, new_agbno);
*new_fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno, new_agbno);
break;
case XFS_REFCOUNT_DECREASE:
error = xfs_refcount_adjust(rcur, bno, blockcount, &new_agbno,
new_len, XFS_REFCOUNT_ADJUST_DECREASE, NULL);
*new_fsb = XFS_AGB_TO_FSB(mp, agno, new_agbno);
*new_fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno, new_agbno);
break;
case XFS_REFCOUNT_ALLOC_COW:
*new_fsb = startblock + blockcount;
@ -1210,8 +1211,10 @@ xfs_refcount_finish_one(
error = -EFSCORRUPTED;
}
if (!error && *new_len > 0)
trace_xfs_refcount_finish_one_leftover(mp, agno, type,
trace_xfs_refcount_finish_one_leftover(mp, pag->pag_agno, type,
bno, blockcount, new_agbno, *new_len);
out_drop:
xfs_perag_put(pag);
return error;
}
@ -1294,7 +1297,7 @@ xfs_refcount_find_shared(
int have;
int error;
trace_xfs_refcount_find_shared(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_find_shared(cur->bc_mp, cur->bc_ag.pag->pag_agno,
agbno, aglen);
/* By default, skip the whole range */
@ -1374,12 +1377,12 @@ xfs_refcount_find_shared(
done:
trace_xfs_refcount_find_shared_result(cur->bc_mp,
cur->bc_ag.agno, *fbno, *flen);
cur->bc_ag.pag->pag_agno, *fbno, *flen);
out_error:
if (error)
trace_xfs_refcount_find_shared_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -1476,7 +1479,7 @@ xfs_refcount_adjust_cow_extents(
tmp.rc_blockcount = aglen;
tmp.rc_refcount = 1;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.agno, &tmp);
cur->bc_ag.pag->pag_agno, &tmp);
error = xfs_refcount_insert(cur, &tmp,
&found_tmp);
@ -1504,7 +1507,7 @@ xfs_refcount_adjust_cow_extents(
ext.rc_refcount = 0;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.agno, &ext);
cur->bc_ag.pag->pag_agno, &ext);
error = xfs_refcount_delete(cur, &found_rec);
if (error)
goto out_error;
@ -1520,7 +1523,7 @@ xfs_refcount_adjust_cow_extents(
return error;
out_error:
trace_xfs_refcount_modify_extent_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -1566,7 +1569,7 @@ xfs_refcount_adjust_cow(
return 0;
out_error:
trace_xfs_refcount_adjust_cow_error(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcount_adjust_cow_error(cur->bc_mp, cur->bc_ag.pag->pag_agno,
error, _RET_IP_);
return error;
}
@ -1580,7 +1583,7 @@ __xfs_refcount_cow_alloc(
xfs_agblock_t agbno,
xfs_extlen_t aglen)
{
trace_xfs_refcount_cow_increase(rcur->bc_mp, rcur->bc_ag.agno,
trace_xfs_refcount_cow_increase(rcur->bc_mp, rcur->bc_ag.pag->pag_agno,
agbno, aglen);
/* Add refcount btree reservation */
@ -1597,7 +1600,7 @@ __xfs_refcount_cow_free(
xfs_agblock_t agbno,
xfs_extlen_t aglen)
{
trace_xfs_refcount_cow_decrease(rcur->bc_mp, rcur->bc_ag.agno,
trace_xfs_refcount_cow_decrease(rcur->bc_mp, rcur->bc_ag.pag->pag_agno,
agbno, aglen);
/* Remove refcount btree reservation */
@ -1672,7 +1675,7 @@ xfs_refcount_recover_extent(
int
xfs_refcount_recover_cow_leftovers(
struct xfs_mount *mp,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_trans *tp;
struct xfs_btree_cur *cur;
@ -1704,10 +1707,10 @@ xfs_refcount_recover_cow_leftovers(
if (error)
return error;
error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);
if (error)
goto out_trans;
cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno);
cur = xfs_refcountbt_init_cursor(mp, tp, agbp, pag);
/* Find all the leftover CoW staging extents. */
memset(&low, 0, sizeof(low));
@ -1729,11 +1732,12 @@ xfs_refcount_recover_cow_leftovers(
if (error)
goto out_free;
trace_xfs_refcount_recover_extent(mp, agno, &rr->rr_rrec);
trace_xfs_refcount_recover_extent(mp, pag->pag_agno,
&rr->rr_rrec);
/* Free the orphan record */
agbno = rr->rr_rrec.rc_startblock - XFS_REFC_COW_START;
fsb = XFS_AGB_TO_FSB(mp, agno, agbno);
fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno, agbno);
xfs_refcount_free_cow_extent(tp, fsb,
rr->rr_rrec.rc_blockcount);

9
fs/xfs/libxfs/xfs_refcount.h
View File

@ -6,6 +6,13 @@
#ifndef __XFS_REFCOUNT_H__
#define __XFS_REFCOUNT_H__
struct xfs_trans;
struct xfs_mount;
struct xfs_perag;
struct xfs_btree_cur;
struct xfs_bmbt_irec;
struct xfs_refcount_irec;
extern int xfs_refcount_lookup_le(struct xfs_btree_cur *cur,
xfs_agblock_t bno, int *stat);
extern int xfs_refcount_lookup_ge(struct xfs_btree_cur *cur,
@ -50,7 +57,7 @@ void xfs_refcount_alloc_cow_extent(struct xfs_trans *tp, xfs_fsblock_t fsb,
void xfs_refcount_free_cow_extent(struct xfs_trans *tp, xfs_fsblock_t fsb,
xfs_extlen_t len);
extern int xfs_refcount_recover_cow_leftovers(struct xfs_mount *mp,
xfs_agnumber_t agno);
struct xfs_perag *pag);
/*
* While we're adjusting the refcounts records of an extent, we have

39
fs/xfs/libxfs/xfs_refcount_btree.c
View File

@ -9,7 +9,6 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_btree.h"
#include "xfs_btree_staging.h"
@ -20,13 +19,14 @@
#include "xfs_trans.h"
#include "xfs_bit.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
static struct xfs_btree_cur *
xfs_refcountbt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_refcountbt_init_cursor(cur->bc_mp, cur->bc_tp,
cur->bc_ag.agbp, cur->bc_ag.agno);
cur->bc_ag.agbp, cur->bc_ag.pag);
}
STATIC void
@ -65,7 +65,7 @@ xfs_refcountbt_alloc_block(
args.tp = cur->bc_tp;
args.mp = cur->bc_mp;
args.type = XFS_ALLOCTYPE_NEAR_BNO;
args.fsbno = XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.agno,
args.fsbno = XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.pag->pag_agno,
xfs_refc_block(args.mp));
args.oinfo = XFS_RMAP_OINFO_REFC;
args.minlen = args.maxlen = args.prod = 1;
@ -74,13 +74,13 @@ xfs_refcountbt_alloc_block(
error = xfs_alloc_vextent(&args);
if (error)
goto out_error;
trace_xfs_refcountbt_alloc_block(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcountbt_alloc_block(cur->bc_mp, cur->bc_ag.pag->pag_agno,
args.agbno, 1);
if (args.fsbno == NULLFSBLOCK) {
*stat = 0;
return 0;
}
ASSERT(args.agno == cur->bc_ag.agno);
ASSERT(args.agno == cur->bc_ag.pag->pag_agno);
ASSERT(args.len == 1);
new->s = cpu_to_be32(args.agbno);
@ -105,7 +105,7 @@ xfs_refcountbt_free_block(
xfs_fsblock_t fsbno = XFS_DADDR_TO_FSB(mp, XFS_BUF_ADDR(bp));
int error;
trace_xfs_refcountbt_free_block(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_refcountbt_free_block(cur->bc_mp, cur->bc_ag.pag->pag_agno,
XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno), 1);
be32_add_cpu(&agf->agf_refcount_blocks, -1);
xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_REFCOUNT_BLOCKS);
@ -170,7 +170,7 @@ xfs_refcountbt_init_ptr_from_cur(
{
struct xfs_agf *agf = cur->bc_ag.agbp->b_addr;
ASSERT(cur->bc_ag.agno == be32_to_cpu(agf->agf_seqno));
ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno));
ptr->s = agf->agf_refcount_root;
}
@ -316,12 +316,11 @@ static struct xfs_btree_cur *
xfs_refcountbt_init_common(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_btree_cur *cur;
ASSERT(agno != NULLAGNUMBER);
ASSERT(agno < mp->m_sb.sb_agcount);
ASSERT(pag->pag_agno < mp->m_sb.sb_agcount);
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
@ -330,9 +329,12 @@ xfs_refcountbt_init_common(
cur->bc_blocklog = mp->m_sb.sb_blocklog;
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_refcbt_2);
cur->bc_ag.agno = agno;
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
/* take a reference for the cursor */
atomic_inc(&pag->pag_ref);
cur->bc_ag.pag = pag;
cur->bc_ag.refc.nr_ops = 0;
cur->bc_ag.refc.shape_changes = 0;
cur->bc_ops = &xfs_refcountbt_ops;
@ -345,12 +347,12 @@ xfs_refcountbt_init_cursor(
struct xfs_mount *mp,
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
cur = xfs_refcountbt_init_common(mp, tp, agno);
cur = xfs_refcountbt_init_common(mp, tp, pag);
cur->bc_nlevels = be32_to_cpu(agf->agf_refcount_level);
cur->bc_ag.agbp = agbp;
return cur;
@ -361,11 +363,11 @@ struct xfs_btree_cur *
xfs_refcountbt_stage_cursor(
struct xfs_mount *mp,
struct xbtree_afakeroot *afake,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_btree_cur *cur;
cur = xfs_refcountbt_init_common(mp, NULL, agno);
cur = xfs_refcountbt_init_common(mp, NULL, pag);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}
@ -450,7 +452,7 @@ int
xfs_refcountbt_calc_reserves(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_extlen_t *ask,
xfs_extlen_t *used)
{
@ -463,8 +465,7 @@ xfs_refcountbt_calc_reserves(
if (!xfs_sb_version_hasreflink(&mp->m_sb))
return 0;
error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);
if (error)
return error;
@ -479,7 +480,7 @@ xfs_refcountbt_calc_reserves(
* expansion. We therefore can pretend the space isn't there.
*/
if (mp->m_sb.sb_logstart &&
XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno)
XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == pag->pag_agno)
agblocks -= mp->m_sb.sb_logblocks;
*ask += xfs_refcountbt_max_size(mp, agblocks);

7
fs/xfs/libxfs/xfs_refcount_btree.h
View File

@ -13,6 +13,7 @@
struct xfs_buf;
struct xfs_btree_cur;
struct xfs_mount;
struct xfs_perag;
struct xbtree_afakeroot;
/*
@ -46,9 +47,9 @@ struct xbtree_afakeroot;
extern struct xfs_btree_cur *xfs_refcountbt_init_cursor(struct xfs_mount *mp,
struct xfs_trans *tp, struct xfs_buf *agbp,
xfs_agnumber_t agno);
struct xfs_perag *pag);
struct xfs_btree_cur *xfs_refcountbt_stage_cursor(struct xfs_mount *mp,
struct xbtree_afakeroot *afake, xfs_agnumber_t agno);
struct xbtree_afakeroot *afake, struct xfs_perag *pag);
extern int xfs_refcountbt_maxrecs(int blocklen, bool leaf);
extern void xfs_refcountbt_compute_maxlevels(struct xfs_mount *mp);
@ -58,7 +59,7 @@ extern xfs_extlen_t xfs_refcountbt_max_size(struct xfs_mount *mp,
xfs_agblock_t agblocks);
extern int xfs_refcountbt_calc_reserves(struct xfs_mount *mp,
struct xfs_trans *tp, xfs_agnumber_t agno, xfs_extlen_t *ask,
struct xfs_trans *tp, struct xfs_perag *pag, xfs_extlen_t *ask,
xfs_extlen_t *used);
void xfs_refcountbt_commit_staged_btree(struct xfs_btree_cur *cur,

147
fs/xfs/libxfs/xfs_rmap.c
View File

@ -11,6 +11,7 @@
#include "xfs_trans_resv.h"
#include "xfs_bit.h"
#include "xfs_mount.h"
#include "xfs_sb.h"
#include "xfs_defer.h"
#include "xfs_btree.h"
#include "xfs_trans.h"
@ -21,6 +22,7 @@
#include "xfs_errortag.h"
#include "xfs_error.h"
#include "xfs_inode.h"
#include "xfs_ag.h"
/*
* Lookup the first record less than or equal to [bno, len, owner, offset]
@ -79,7 +81,7 @@ xfs_rmap_update(
union xfs_btree_rec rec;
int error;
trace_xfs_rmap_update(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_rmap_update(cur->bc_mp, cur->bc_ag.pag->pag_agno,
irec->rm_startblock, irec->rm_blockcount,
irec->rm_owner, irec->rm_offset, irec->rm_flags);
@ -91,7 +93,7 @@ xfs_rmap_update(
error = xfs_btree_update(cur, &rec);
if (error)
trace_xfs_rmap_update_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -107,7 +109,7 @@ xfs_rmap_insert(
int i;
int error;
trace_xfs_rmap_insert(rcur->bc_mp, rcur->bc_ag.agno, agbno,
trace_xfs_rmap_insert(rcur->bc_mp, rcur->bc_ag.pag->pag_agno, agbno,
len, owner, offset, flags);
error = xfs_rmap_lookup_eq(rcur, agbno, len, owner, offset, flags, &i);
@ -133,7 +135,7 @@ xfs_rmap_insert(
done:
if (error)
trace_xfs_rmap_insert_error(rcur->bc_mp,
rcur->bc_ag.agno, error, _RET_IP_);
rcur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -149,7 +151,7 @@ xfs_rmap_delete(
int i;
int error;
trace_xfs_rmap_delete(rcur->bc_mp, rcur->bc_ag.agno, agbno,
trace_xfs_rmap_delete(rcur->bc_mp, rcur->bc_ag.pag->pag_agno, agbno,
len, owner, offset, flags);
error = xfs_rmap_lookup_eq(rcur, agbno, len, owner, offset, flags, &i);
@ -170,7 +172,7 @@ xfs_rmap_delete(
done:
if (error)
trace_xfs_rmap_delete_error(rcur->bc_mp,
rcur->bc_ag.agno, error, _RET_IP_);
rcur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -197,7 +199,7 @@ xfs_rmap_get_rec(
int *stat)
{
struct xfs_mount *mp = cur->bc_mp;
xfs_agnumber_t agno = cur->bc_ag.agno;
xfs_agnumber_t agno = cur->bc_ag.pag->pag_agno;
union xfs_btree_rec *rec;
int error;
@ -260,7 +262,7 @@ xfs_rmap_find_left_neighbor_helper(
struct xfs_find_left_neighbor_info *info = priv;
trace_xfs_rmap_find_left_neighbor_candidate(cur->bc_mp,
cur->bc_ag.agno, rec->rm_startblock,
cur->bc_ag.pag->pag_agno, rec->rm_startblock,
rec->rm_blockcount, rec->rm_owner, rec->rm_offset,
rec->rm_flags);
@ -312,7 +314,7 @@ xfs_rmap_find_left_neighbor(
info.stat = stat;
trace_xfs_rmap_find_left_neighbor_query(cur->bc_mp,
cur->bc_ag.agno, bno, 0, owner, offset, flags);
cur->bc_ag.pag->pag_agno, bno, 0, owner, offset, flags);
error = xfs_rmap_query_range(cur, &info.high, &info.high,
xfs_rmap_find_left_neighbor_helper, &info);
@ -320,7 +322,7 @@ xfs_rmap_find_left_neighbor(
error = 0;
if (*stat)
trace_xfs_rmap_find_left_neighbor_result(cur->bc_mp,
cur->bc_ag.agno, irec->rm_startblock,
cur->bc_ag.pag->pag_agno, irec->rm_startblock,
irec->rm_blockcount, irec->rm_owner,
irec->rm_offset, irec->rm_flags);
return error;
@ -336,7 +338,7 @@ xfs_rmap_lookup_le_range_helper(
struct xfs_find_left_neighbor_info *info = priv;
trace_xfs_rmap_lookup_le_range_candidate(cur->bc_mp,
cur->bc_ag.agno, rec->rm_startblock,
cur->bc_ag.pag->pag_agno, rec->rm_startblock,
rec->rm_blockcount, rec->rm_owner, rec->rm_offset,
rec->rm_flags);
@ -385,14 +387,14 @@ xfs_rmap_lookup_le_range(
info.stat = stat;
trace_xfs_rmap_lookup_le_range(cur->bc_mp,
cur->bc_ag.agno, bno, 0, owner, offset, flags);
cur->bc_ag.pag->pag_agno, bno, 0, owner, offset, flags);
error = xfs_rmap_query_range(cur, &info.high, &info.high,
xfs_rmap_lookup_le_range_helper, &info);
if (error == -ECANCELED)
error = 0;
if (*stat)
trace_xfs_rmap_lookup_le_range_result(cur->bc_mp,
cur->bc_ag.agno, irec->rm_startblock,
cur->bc_ag.pag->pag_agno, irec->rm_startblock,
irec->rm_blockcount, irec->rm_owner,
irec->rm_offset, irec->rm_flags);
return error;
@ -498,7 +500,7 @@ xfs_rmap_unmap(
(flags & XFS_RMAP_BMBT_BLOCK);
if (unwritten)
flags |= XFS_RMAP_UNWRITTEN;
trace_xfs_rmap_unmap(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_unmap(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
/*
@ -522,7 +524,7 @@ xfs_rmap_unmap(
goto out_error;
}
trace_xfs_rmap_lookup_le_range_result(cur->bc_mp,
cur->bc_ag.agno, ltrec.rm_startblock,
cur->bc_ag.pag->pag_agno, ltrec.rm_startblock,
ltrec.rm_blockcount, ltrec.rm_owner,
ltrec.rm_offset, ltrec.rm_flags);
ltoff = ltrec.rm_offset;
@ -588,7 +590,7 @@ xfs_rmap_unmap(
if (ltrec.rm_startblock == bno && ltrec.rm_blockcount == len) {
/* exact match, simply remove the record from rmap tree */
trace_xfs_rmap_delete(mp, cur->bc_ag.agno,
trace_xfs_rmap_delete(mp, cur->bc_ag.pag->pag_agno,
ltrec.rm_startblock, ltrec.rm_blockcount,
ltrec.rm_owner, ltrec.rm_offset,
ltrec.rm_flags);
@ -666,7 +668,7 @@ xfs_rmap_unmap(
else
cur->bc_rec.r.rm_offset = offset + len;
cur->bc_rec.r.rm_flags = flags;
trace_xfs_rmap_insert(mp, cur->bc_ag.agno,
trace_xfs_rmap_insert(mp, cur->bc_ag.pag->pag_agno,
cur->bc_rec.r.rm_startblock,
cur->bc_rec.r.rm_blockcount,
cur->bc_rec.r.rm_owner,
@ -678,11 +680,11 @@ xfs_rmap_unmap(
}
out_done:
trace_xfs_rmap_unmap_done(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_unmap_done(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
out_error:
if (error)
trace_xfs_rmap_unmap_error(mp, cur->bc_ag.agno,
trace_xfs_rmap_unmap_error(mp, cur->bc_ag.pag->pag_agno,
error, _RET_IP_);
return error;
}
@ -694,7 +696,7 @@ int
xfs_rmap_free(
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agblock_t bno,
xfs_extlen_t len,
const struct xfs_owner_info *oinfo)
@ -706,7 +708,7 @@ xfs_rmap_free(
if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
return 0;
cur = xfs_rmapbt_init_cursor(mp, tp, agbp, agno);
cur = xfs_rmapbt_init_cursor(mp, tp, agbp, pag);
error = xfs_rmap_unmap(cur, bno, len, false, oinfo);
@ -773,7 +775,7 @@ xfs_rmap_map(
(flags & XFS_RMAP_BMBT_BLOCK);
if (unwritten)
flags |= XFS_RMAP_UNWRITTEN;
trace_xfs_rmap_map(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_map(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
ASSERT(!xfs_rmap_should_skip_owner_update(oinfo));
@ -795,7 +797,7 @@ xfs_rmap_map(
goto out_error;
}
trace_xfs_rmap_lookup_le_range_result(cur->bc_mp,
cur->bc_ag.agno, ltrec.rm_startblock,
cur->bc_ag.pag->pag_agno, ltrec.rm_startblock,
ltrec.rm_blockcount, ltrec.rm_owner,
ltrec.rm_offset, ltrec.rm_flags);
@ -831,7 +833,7 @@ xfs_rmap_map(
goto out_error;
}
trace_xfs_rmap_find_right_neighbor_result(cur->bc_mp,
cur->bc_ag.agno, gtrec.rm_startblock,
cur->bc_ag.pag->pag_agno, gtrec.rm_startblock,
gtrec.rm_blockcount, gtrec.rm_owner,
gtrec.rm_offset, gtrec.rm_flags);
if (!xfs_rmap_is_mergeable(&gtrec, owner, flags))
@ -870,7 +872,7 @@ xfs_rmap_map(
* result: |rrrrrrrrrrrrrrrrrrrrrrrrrrrrr|
*/
ltrec.rm_blockcount += gtrec.rm_blockcount;
trace_xfs_rmap_delete(mp, cur->bc_ag.agno,
trace_xfs_rmap_delete(mp, cur->bc_ag.pag->pag_agno,
gtrec.rm_startblock,
gtrec.rm_blockcount,
gtrec.rm_owner,
@ -921,7 +923,7 @@ xfs_rmap_map(
cur->bc_rec.r.rm_owner = owner;
cur->bc_rec.r.rm_offset = offset;
cur->bc_rec.r.rm_flags = flags;
trace_xfs_rmap_insert(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_insert(mp, cur->bc_ag.pag->pag_agno, bno, len,
owner, offset, flags);
error = xfs_btree_insert(cur, &i);
if (error)
@ -932,11 +934,11 @@ xfs_rmap_map(
}
}
trace_xfs_rmap_map_done(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_map_done(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
out_error:
if (error)
trace_xfs_rmap_map_error(mp, cur->bc_ag.agno,
trace_xfs_rmap_map_error(mp, cur->bc_ag.pag->pag_agno,
error, _RET_IP_);
return error;
}
@ -948,7 +950,7 @@ int
xfs_rmap_alloc(
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agblock_t bno,
xfs_extlen_t len,
const struct xfs_owner_info *oinfo)
@ -960,7 +962,7 @@ xfs_rmap_alloc(
if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
return 0;
cur = xfs_rmapbt_init_cursor(mp, tp, agbp, agno);
cur = xfs_rmapbt_init_cursor(mp, tp, agbp, pag);
error = xfs_rmap_map(cur, bno, len, false, oinfo);
xfs_btree_del_cursor(cur, error);
@ -1010,7 +1012,7 @@ xfs_rmap_convert(
(flags & (XFS_RMAP_ATTR_FORK | XFS_RMAP_BMBT_BLOCK))));
oldext = unwritten ? XFS_RMAP_UNWRITTEN : 0;
new_endoff = offset + len;
trace_xfs_rmap_convert(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_convert(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
/*
@ -1034,7 +1036,7 @@ xfs_rmap_convert(
goto done;
}
trace_xfs_rmap_lookup_le_range_result(cur->bc_mp,
cur->bc_ag.agno, PREV.rm_startblock,
cur->bc_ag.pag->pag_agno, PREV.rm_startblock,
PREV.rm_blockcount, PREV.rm_owner,
PREV.rm_offset, PREV.rm_flags);
@ -1076,7 +1078,7 @@ xfs_rmap_convert(
goto done;
}
trace_xfs_rmap_find_left_neighbor_result(cur->bc_mp,
cur->bc_ag.agno, LEFT.rm_startblock,
cur->bc_ag.pag->pag_agno, LEFT.rm_startblock,
LEFT.rm_blockcount, LEFT.rm_owner,
LEFT.rm_offset, LEFT.rm_flags);
if (LEFT.rm_startblock + LEFT.rm_blockcount == bno &&
@ -1114,7 +1116,7 @@ xfs_rmap_convert(
goto done;
}
trace_xfs_rmap_find_right_neighbor_result(cur->bc_mp,
cur->bc_ag.agno, RIGHT.rm_startblock,
cur->bc_ag.pag->pag_agno, RIGHT.rm_startblock,
RIGHT.rm_blockcount, RIGHT.rm_owner,
RIGHT.rm_offset, RIGHT.rm_flags);
if (bno + len == RIGHT.rm_startblock &&
@ -1132,7 +1134,7 @@ xfs_rmap_convert(
RIGHT.rm_blockcount > XFS_RMAP_LEN_MAX)
state &= ~RMAP_RIGHT_CONTIG;
trace_xfs_rmap_convert_state(mp, cur->bc_ag.agno, state,
trace_xfs_rmap_convert_state(mp, cur->bc_ag.pag->pag_agno, state,
_RET_IP_);
/* reset the cursor back to PREV */
@ -1162,7 +1164,7 @@ xfs_rmap_convert(
error = -EFSCORRUPTED;
goto done;
}
trace_xfs_rmap_delete(mp, cur->bc_ag.agno,
trace_xfs_rmap_delete(mp, cur->bc_ag.pag->pag_agno,
RIGHT.rm_startblock, RIGHT.rm_blockcount,
RIGHT.rm_owner, RIGHT.rm_offset,
RIGHT.rm_flags);
@ -1180,7 +1182,7 @@ xfs_rmap_convert(
error = -EFSCORRUPTED;
goto done;
}
trace_xfs_rmap_delete(mp, cur->bc_ag.agno,
trace_xfs_rmap_delete(mp, cur->bc_ag.pag->pag_agno,
PREV.rm_startblock, PREV.rm_blockcount,
PREV.rm_owner, PREV.rm_offset,
PREV.rm_flags);
@ -1210,7 +1212,7 @@ xfs_rmap_convert(
* Setting all of a previous oldext extent to newext.
* The left neighbor is contiguous, the right is not.
*/
trace_xfs_rmap_delete(mp, cur->bc_ag.agno,
trace_xfs_rmap_delete(mp, cur->bc_ag.pag->pag_agno,
PREV.rm_startblock, PREV.rm_blockcount,
PREV.rm_owner, PREV.rm_offset,
PREV.rm_flags);
@ -1247,7 +1249,7 @@ xfs_rmap_convert(
error = -EFSCORRUPTED;
goto done;
}
trace_xfs_rmap_delete(mp, cur->bc_ag.agno,
trace_xfs_rmap_delete(mp, cur->bc_ag.pag->pag_agno,
RIGHT.rm_startblock, RIGHT.rm_blockcount,
RIGHT.rm_owner, RIGHT.rm_offset,
RIGHT.rm_flags);
@ -1326,7 +1328,7 @@ xfs_rmap_convert(
NEW.rm_blockcount = len;
NEW.rm_flags = newext;
cur->bc_rec.r = NEW;
trace_xfs_rmap_insert(mp, cur->bc_ag.agno, bno,
trace_xfs_rmap_insert(mp, cur->bc_ag.pag->pag_agno, bno,
len, owner, offset, newext);
error = xfs_btree_insert(cur, &i);
if (error)
@ -1383,7 +1385,7 @@ xfs_rmap_convert(
NEW.rm_blockcount = len;
NEW.rm_flags = newext;
cur->bc_rec.r = NEW;
trace_xfs_rmap_insert(mp, cur->bc_ag.agno, bno,
trace_xfs_rmap_insert(mp, cur->bc_ag.pag->pag_agno, bno,
len, owner, offset, newext);
error = xfs_btree_insert(cur, &i);
if (error)
@ -1414,7 +1416,7 @@ xfs_rmap_convert(
NEW = PREV;
NEW.rm_blockcount = offset - PREV.rm_offset;
cur->bc_rec.r = NEW;
trace_xfs_rmap_insert(mp, cur->bc_ag.agno,
trace_xfs_rmap_insert(mp, cur->bc_ag.pag->pag_agno,
NEW.rm_startblock, NEW.rm_blockcount,
NEW.rm_owner, NEW.rm_offset,
NEW.rm_flags);
@ -1441,7 +1443,7 @@ xfs_rmap_convert(
/* new middle extent - newext */
cur->bc_rec.r.rm_flags &= ~XFS_RMAP_UNWRITTEN;
cur->bc_rec.r.rm_flags |= newext;
trace_xfs_rmap_insert(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_insert(mp, cur->bc_ag.pag->pag_agno, bno, len,
owner, offset, newext);
error = xfs_btree_insert(cur, &i);
if (error)
@ -1465,12 +1467,12 @@ xfs_rmap_convert(
ASSERT(0);
}
trace_xfs_rmap_convert_done(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_convert_done(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
done:
if (error)
trace_xfs_rmap_convert_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -1506,7 +1508,7 @@ xfs_rmap_convert_shared(
(flags & (XFS_RMAP_ATTR_FORK | XFS_RMAP_BMBT_BLOCK))));
oldext = unwritten ? XFS_RMAP_UNWRITTEN : 0;
new_endoff = offset + len;
trace_xfs_rmap_convert(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_convert(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
/*
@ -1573,7 +1575,7 @@ xfs_rmap_convert_shared(
goto done;
}
trace_xfs_rmap_find_right_neighbor_result(cur->bc_mp,
cur->bc_ag.agno, RIGHT.rm_startblock,
cur->bc_ag.pag->pag_agno, RIGHT.rm_startblock,
RIGHT.rm_blockcount, RIGHT.rm_owner,
RIGHT.rm_offset, RIGHT.rm_flags);
if (xfs_rmap_is_mergeable(&RIGHT, owner, newext))
@ -1589,7 +1591,7 @@ xfs_rmap_convert_shared(
RIGHT.rm_blockcount > XFS_RMAP_LEN_MAX)
state &= ~RMAP_RIGHT_CONTIG;
trace_xfs_rmap_convert_state(mp, cur->bc_ag.agno, state,
trace_xfs_rmap_convert_state(mp, cur->bc_ag.pag->pag_agno, state,
_RET_IP_);
/*
* Switch out based on the FILLING and CONTIG state bits.
@ -1880,12 +1882,12 @@ xfs_rmap_convert_shared(
ASSERT(0);
}
trace_xfs_rmap_convert_done(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_convert_done(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
done:
if (error)
trace_xfs_rmap_convert_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -1923,7 +1925,7 @@ xfs_rmap_unmap_shared(
xfs_owner_info_unpack(oinfo, &owner, &offset, &flags);
if (unwritten)
flags |= XFS_RMAP_UNWRITTEN;
trace_xfs_rmap_unmap(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_unmap(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
/*
@ -2072,12 +2074,12 @@ xfs_rmap_unmap_shared(
goto out_error;
}
trace_xfs_rmap_unmap_done(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_unmap_done(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
out_error:
if (error)
trace_xfs_rmap_unmap_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -2112,7 +2114,7 @@ xfs_rmap_map_shared(
xfs_owner_info_unpack(oinfo, &owner, &offset, &flags);
if (unwritten)
flags |= XFS_RMAP_UNWRITTEN;
trace_xfs_rmap_map(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_map(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
/* Is there a left record that abuts our range? */
@ -2138,7 +2140,7 @@ xfs_rmap_map_shared(
goto out_error;
}
trace_xfs_rmap_find_right_neighbor_result(cur->bc_mp,
cur->bc_ag.agno, gtrec.rm_startblock,
cur->bc_ag.pag->pag_agno, gtrec.rm_startblock,
gtrec.rm_blockcount, gtrec.rm_owner,
gtrec.rm_offset, gtrec.rm_flags);
@ -2231,12 +2233,12 @@ xfs_rmap_map_shared(
goto out_error;
}
trace_xfs_rmap_map_done(mp, cur->bc_ag.agno, bno, len,
trace_xfs_rmap_map_done(mp, cur->bc_ag.pag->pag_agno, bno, len,
unwritten, oinfo);
out_error:
if (error)
trace_xfs_rmap_map_error(cur->bc_mp,
cur->bc_ag.agno, error, _RET_IP_);
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
return error;
}
@ -2362,31 +2364,32 @@ xfs_rmap_finish_one(
struct xfs_btree_cur **pcur)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_perag *pag;
struct xfs_btree_cur *rcur;
struct xfs_buf *agbp = NULL;
int error = 0;
xfs_agnumber_t agno;
struct xfs_owner_info oinfo;
xfs_agblock_t bno;
bool unwritten;
agno = XFS_FSB_TO_AGNO(mp, startblock);
ASSERT(agno != NULLAGNUMBER);
pag = xfs_perag_get(mp, XFS_FSB_TO_AGNO(mp, startblock));
bno = XFS_FSB_TO_AGBNO(mp, startblock);
trace_xfs_rmap_deferred(mp, agno, type, bno, owner, whichfork,
trace_xfs_rmap_deferred(mp, pag->pag_agno, type, bno, owner, whichfork,
startoff, blockcount, state);
if (XFS_TEST_ERROR(false, mp,
XFS_ERRTAG_RMAP_FINISH_ONE))
return -EIO;
if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_RMAP_FINISH_ONE)) {
error = -EIO;
goto out_drop;
}
/*
* If we haven't gotten a cursor or the cursor AG doesn't match
* the startblock, get one now.
*/
rcur = *pcur;
if (rcur != NULL && rcur->bc_ag.agno != agno) {
if (rcur != NULL && rcur->bc_ag.pag != pag) {
xfs_rmap_finish_one_cleanup(tp, rcur, 0);
rcur = NULL;
*pcur = NULL;
@ -2397,13 +2400,15 @@ xfs_rmap_finish_one(
* rmapbt, because a shape change could cause us to
* allocate blocks.
*/
error = xfs_free_extent_fix_freelist(tp, agno, &agbp);
error = xfs_free_extent_fix_freelist(tp, pag, &agbp);
if (error)
return error;
if (XFS_IS_CORRUPT(tp->t_mountp, !agbp))
return -EFSCORRUPTED;
goto out_drop;
if (XFS_IS_CORRUPT(tp->t_mountp, !agbp)) {
error = -EFSCORRUPTED;
goto out_drop;
}
rcur = xfs_rmapbt_init_cursor(mp, tp, agbp, agno);
rcur = xfs_rmapbt_init_cursor(mp, tp, agbp, pag);
}
*pcur = rcur;
@ -2441,6 +2446,8 @@ xfs_rmap_finish_one(
ASSERT(0);
error = -EFSCORRUPTED;
}
out_drop:
xfs_perag_put(pag);
return error;
}

6
fs/xfs/libxfs/xfs_rmap.h
View File

@ -6,6 +6,8 @@
#ifndef __XFS_RMAP_H__
#define __XFS_RMAP_H__
struct xfs_perag;
static inline void
xfs_rmap_ino_bmbt_owner(
struct xfs_owner_info *oi,
@ -113,10 +115,10 @@ xfs_owner_info_pack(
}
int xfs_rmap_alloc(struct xfs_trans *tp, struct xfs_buf *agbp,
xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
struct xfs_perag *pag, xfs_agblock_t bno, xfs_extlen_t len,
const struct xfs_owner_info *oinfo);
int xfs_rmap_free(struct xfs_trans *tp, struct xfs_buf *agbp,
xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
struct xfs_perag *pag, xfs_agblock_t bno, xfs_extlen_t len,
const struct xfs_owner_info *oinfo);
int xfs_rmap_lookup_le(struct xfs_btree_cur *cur, xfs_agblock_t bno,

46
fs/xfs/libxfs/xfs_rmap_btree.c
View File

@ -9,7 +9,6 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_trans.h"
#include "xfs_alloc.h"
@ -20,6 +19,7 @@
#include "xfs_trace.h"
#include "xfs_error.h"
#include "xfs_extent_busy.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
/*
@ -52,7 +52,7 @@ xfs_rmapbt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_rmapbt_init_cursor(cur->bc_mp, cur->bc_tp,
cur->bc_ag.agbp, cur->bc_ag.agno);
cur->bc_ag.agbp, cur->bc_ag.pag);
}
STATIC void
@ -64,13 +64,12 @@ xfs_rmapbt_set_root(
struct xfs_buf *agbp = cur->bc_ag.agbp;
struct xfs_agf *agf = agbp->b_addr;
int btnum = cur->bc_btnum;
struct xfs_perag *pag = agbp->b_pag;
ASSERT(ptr->s != 0);
agf->agf_roots[btnum] = ptr->s;
be32_add_cpu(&agf->agf_levels[btnum], inc);
pag->pagf_levels[btnum] += inc;
cur->bc_ag.pag->pagf_levels[btnum] += inc;
xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_ROOTS | XFS_AGF_LEVELS);
}
@ -84,6 +83,7 @@ xfs_rmapbt_alloc_block(
{
struct xfs_buf *agbp = cur->bc_ag.agbp;
struct xfs_agf *agf = agbp->b_addr;
struct xfs_perag *pag = cur->bc_ag.pag;
int error;
xfs_agblock_t bno;
@ -93,21 +93,19 @@ xfs_rmapbt_alloc_block(
if (error)
return error;
trace_xfs_rmapbt_alloc_block(cur->bc_mp, cur->bc_ag.agno,
bno, 1);
trace_xfs_rmapbt_alloc_block(cur->bc_mp, pag->pag_agno, bno, 1);
if (bno == NULLAGBLOCK) {
*stat = 0;
return 0;
}
xfs_extent_busy_reuse(cur->bc_mp, cur->bc_ag.agno, bno, 1,
false);
xfs_extent_busy_reuse(cur->bc_mp, pag, bno, 1, false);
new->s = cpu_to_be32(bno);
be32_add_cpu(&agf->agf_rmap_blocks, 1);
xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_RMAP_BLOCKS);
xfs_ag_resv_rmapbt_alloc(cur->bc_mp, cur->bc_ag.agno);
xfs_ag_resv_rmapbt_alloc(cur->bc_mp, pag->pag_agno);
*stat = 1;
return 0;
@ -120,12 +118,12 @@ xfs_rmapbt_free_block(
{
struct xfs_buf *agbp = cur->bc_ag.agbp;
struct xfs_agf *agf = agbp->b_addr;
struct xfs_perag *pag;
struct xfs_perag *pag = cur->bc_ag.pag;
xfs_agblock_t bno;
int error;
bno = xfs_daddr_to_agbno(cur->bc_mp, XFS_BUF_ADDR(bp));
trace_xfs_rmapbt_free_block(cur->bc_mp, cur->bc_ag.agno,
trace_xfs_rmapbt_free_block(cur->bc_mp, pag->pag_agno,
bno, 1);
be32_add_cpu(&agf->agf_rmap_blocks, -1);
xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_RMAP_BLOCKS);
@ -133,10 +131,9 @@ xfs_rmapbt_free_block(
if (error)
return error;
xfs_extent_busy_insert(cur->bc_tp, be32_to_cpu(agf->agf_seqno), bno, 1,
xfs_extent_busy_insert(cur->bc_tp, pag, bno, 1,
XFS_EXTENT_BUSY_SKIP_DISCARD);
pag = cur->bc_ag.agbp->b_pag;
xfs_ag_resv_free_extent(pag, XFS_AG_RESV_RMAPBT, NULL, 1);
return 0;
}
@ -215,7 +212,7 @@ xfs_rmapbt_init_ptr_from_cur(
{
struct xfs_agf *agf = cur->bc_ag.agbp->b_addr;
ASSERT(cur->bc_ag.agno == be32_to_cpu(agf->agf_seqno));
ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno));
ptr->s = agf->agf_roots[cur->bc_btnum];
}
@ -450,7 +447,7 @@ static struct xfs_btree_cur *
xfs_rmapbt_init_common(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_btree_cur *cur;
@ -462,9 +459,12 @@ xfs_rmapbt_init_common(
cur->bc_flags = XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING;
cur->bc_blocklog = mp->m_sb.sb_blocklog;
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_rmap_2);
cur->bc_ag.agno = agno;
cur->bc_ops = &xfs_rmapbt_ops;
/* take a reference for the cursor */
atomic_inc(&pag->pag_ref);
cur->bc_ag.pag = pag;
return cur;
}
@ -474,12 +474,12 @@ xfs_rmapbt_init_cursor(
struct xfs_mount *mp,
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
cur = xfs_rmapbt_init_common(mp, tp, agno);
cur = xfs_rmapbt_init_common(mp, tp, pag);
cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]);
cur->bc_ag.agbp = agbp;
return cur;
@ -490,11 +490,11 @@ struct xfs_btree_cur *
xfs_rmapbt_stage_cursor(
struct xfs_mount *mp,
struct xbtree_afakeroot *afake,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xfs_btree_cur *cur;
cur = xfs_rmapbt_init_common(mp, NULL, agno);
cur = xfs_rmapbt_init_common(mp, NULL, pag);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}
@ -596,7 +596,7 @@ int
xfs_rmapbt_calc_reserves(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_extlen_t *ask,
xfs_extlen_t *used)
{
@ -609,7 +609,7 @@ xfs_rmapbt_calc_reserves(
if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
return 0;
error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);
if (error)
return error;
@ -624,7 +624,7 @@ xfs_rmapbt_calc_reserves(
* expansion. We therefore can pretend the space isn't there.
*/
if (mp->m_sb.sb_logstart &&
XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno)
XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == pag->pag_agno)
agblocks -= mp->m_sb.sb_logblocks;
/* Reserve 1% of the AG or enough for 1 block per record. */

6
fs/xfs/libxfs/xfs_rmap_btree.h
View File

@ -43,9 +43,9 @@ struct xbtree_afakeroot;
struct xfs_btree_cur *xfs_rmapbt_init_cursor(struct xfs_mount *mp,
struct xfs_trans *tp, struct xfs_buf *bp,
xfs_agnumber_t agno);
struct xfs_perag *pag);
struct xfs_btree_cur *xfs_rmapbt_stage_cursor(struct xfs_mount *mp,
struct xbtree_afakeroot *afake, xfs_agnumber_t agno);
struct xbtree_afakeroot *afake, struct xfs_perag *pag);
void xfs_rmapbt_commit_staged_btree(struct xfs_btree_cur *cur,
struct xfs_trans *tp, struct xfs_buf *agbp);
int xfs_rmapbt_maxrecs(int blocklen, int leaf);
@ -57,6 +57,6 @@ extern xfs_extlen_t xfs_rmapbt_max_size(struct xfs_mount *mp,
xfs_agblock_t agblocks);
extern int xfs_rmapbt_calc_reserves(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
struct xfs_perag *pag, xfs_extlen_t *ask, xfs_extlen_t *used);
#endif /* __XFS_RMAP_BTREE_H__ */

146
fs/xfs/libxfs/xfs_sb.c
View File

@ -15,7 +15,6 @@
#include "xfs_ialloc.h"
#include "xfs_alloc.h"
#include "xfs_error.h"
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_bmap_btree.h"
@ -25,72 +24,12 @@
#include "xfs_refcount_btree.h"
#include "xfs_da_format.h"
#include "xfs_health.h"
#include "xfs_ag.h"
/*
* Physical superblock buffer manipulations. Shared with libxfs in userspace.
*/
/*
* Reference counting access wrappers to the perag structures.
* Because we never free per-ag structures, the only thing we
* have to protect against changes is the tree structure itself.
*/
struct xfs_perag *
xfs_perag_get(
struct xfs_mount *mp,
xfs_agnumber_t agno)
{
struct xfs_perag *pag;
int ref = 0;
rcu_read_lock();
pag = radix_tree_lookup(&mp->m_perag_tree, agno);
if (pag) {
ASSERT(atomic_read(&pag->pag_ref) >= 0);
ref = atomic_inc_return(&pag->pag_ref);
}
rcu_read_unlock();
trace_xfs_perag_get(mp, agno, ref, _RET_IP_);
return pag;
}
/*
* search from @first to find the next perag with the given tag set.
*/
struct xfs_perag *
xfs_perag_get_tag(
struct xfs_mount *mp,
xfs_agnumber_t first,
int tag)
{
struct xfs_perag *pag;
int found;
int ref;
rcu_read_lock();
found = radix_tree_gang_lookup_tag(&mp->m_perag_tree,
(void **)&pag, first, 1, tag);
if (found <= 0) {
rcu_read_unlock();
return NULL;
}
ref = atomic_inc_return(&pag->pag_ref);
rcu_read_unlock();
trace_xfs_perag_get_tag(mp, pag->pag_agno, ref, _RET_IP_);
return pag;
}
void
xfs_perag_put(
struct xfs_perag *pag)
{
int ref;
ASSERT(atomic_read(&pag->pag_ref) > 0);
ref = atomic_dec_return(&pag->pag_ref);
trace_xfs_perag_put(pag->pag_mount, pag->pag_agno, ref, _RET_IP_);
}
/* Check all the superblock fields we care about when reading one in. */
STATIC int
xfs_validate_sb_read(
@ -841,78 +780,6 @@ xfs_sb_mount_common(
mp->m_ag_max_usable = xfs_alloc_ag_max_usable(mp);
}
/*
* xfs_initialize_perag_data
*
* Read in each per-ag structure so we can count up the number of
* allocated inodes, free inodes and used filesystem blocks as this
* information is no longer persistent in the superblock. Once we have
* this information, write it into the in-core superblock structure.
*/
int
xfs_initialize_perag_data(
struct xfs_mount *mp,
xfs_agnumber_t agcount)
{
xfs_agnumber_t index;
xfs_perag_t *pag;
xfs_sb_t *sbp = &mp->m_sb;
uint64_t ifree = 0;
uint64_t ialloc = 0;
uint64_t bfree = 0;
uint64_t bfreelst = 0;
uint64_t btree = 0;
uint64_t fdblocks;
int error = 0;
for (index = 0; index < agcount; index++) {
/*
* read the agf, then the agi. This gets us
* all the information we need and populates the
* per-ag structures for us.
*/
error = xfs_alloc_pagf_init(mp, NULL, index, 0);
if (error)
return error;
error = xfs_ialloc_pagi_init(mp, NULL, index);
if (error)
return error;
pag = xfs_perag_get(mp, index);
ifree += pag->pagi_freecount;
ialloc += pag->pagi_count;
bfree += pag->pagf_freeblks;
bfreelst += pag->pagf_flcount;
btree += pag->pagf_btreeblks;
xfs_perag_put(pag);
}
fdblocks = bfree + bfreelst + btree;
/*
* If the new summary counts are obviously incorrect, fail the
* mount operation because that implies the AGFs are also corrupt.
* Clear FS_COUNTERS so that we don't unmount with a dirty log, which
* will prevent xfs_repair from fixing anything.
*/
if (fdblocks > sbp->sb_dblocks || ifree > ialloc) {
xfs_alert(mp, "AGF corruption. Please run xfs_repair.");
error = -EFSCORRUPTED;
goto out;
}
/* Overwrite incore superblock counters with just-read data */
spin_lock(&mp->m_sb_lock);
sbp->sb_ifree = ifree;
sbp->sb_icount = ialloc;
sbp->sb_fdblocks = fdblocks;
spin_unlock(&mp->m_sb_lock);
xfs_reinit_percpu_counters(mp);
out:
xfs_fs_mark_healthy(mp, XFS_SICK_FS_COUNTERS);
return error;
}
/*
* xfs_log_sb() can be used to copy arbitrary changes to the in-core superblock
* into the superblock buffer to be logged. It does not provide the higher
@ -989,17 +856,18 @@ int
xfs_update_secondary_sbs(
struct xfs_mount *mp)
{
xfs_agnumber_t agno;
struct xfs_perag *pag;
xfs_agnumber_t agno = 1;
int saved_error = 0;
int error = 0;
LIST_HEAD (buffer_list);
/* update secondary superblocks. */
for (agno = 1; agno < mp->m_sb.sb_agcount; agno++) {
for_each_perag_from(mp, agno, pag) {
struct xfs_buf *bp;
error = xfs_buf_get(mp->m_ddev_targp,
XFS_AG_DADDR(mp, agno, XFS_SB_DADDR),
XFS_AG_DADDR(mp, pag->pag_agno, XFS_SB_DADDR),
XFS_FSS_TO_BB(mp, 1), &bp);
/*
* If we get an error reading or writing alternate superblocks,
@ -1011,7 +879,7 @@ xfs_update_secondary_sbs(
if (error) {
xfs_warn(mp,
"error allocating secondary superblock for ag %d",
agno);
pag->pag_agno);
if (!saved_error)
saved_error = error;
continue;
@ -1032,7 +900,7 @@ xfs_update_secondary_sbs(
if (error) {
xfs_warn(mp,
"write error %d updating a secondary superblock near ag %d",
error, agno);
error, pag->pag_agno);
if (!saved_error)
saved_error = error;
continue;

9
fs/xfs/libxfs/xfs_sb.h
View File

@ -13,15 +13,6 @@ struct xfs_trans;
struct xfs_fsop_geom;
struct xfs_perag;
/*
* perag get/put wrappers for ref counting
*/
extern struct xfs_perag *xfs_perag_get(struct xfs_mount *, xfs_agnumber_t);
extern struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t,
int tag);
extern void xfs_perag_put(struct xfs_perag *pag);
extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t);
extern void xfs_log_sb(struct xfs_trans *tp);
extern int xfs_sync_sb(struct xfs_mount *mp, bool wait);
extern int xfs_sync_sb_buf(struct xfs_mount *mp);

20
fs/xfs/libxfs/xfs_shared.h
View File

@ -22,30 +22,26 @@ struct xfs_inode;
* Buffer verifier operations are widely used, including userspace tools
*/
extern const struct xfs_buf_ops xfs_agf_buf_ops;
extern const struct xfs_buf_ops xfs_agi_buf_ops;
extern const struct xfs_buf_ops xfs_agf_buf_ops;
extern const struct xfs_buf_ops xfs_agfl_buf_ops;
extern const struct xfs_buf_ops xfs_bnobt_buf_ops;
extern const struct xfs_buf_ops xfs_cntbt_buf_ops;
extern const struct xfs_buf_ops xfs_rmapbt_buf_ops;
extern const struct xfs_buf_ops xfs_refcountbt_buf_ops;
extern const struct xfs_buf_ops xfs_agi_buf_ops;
extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;
extern const struct xfs_buf_ops xfs_attr3_rmt_buf_ops;
extern const struct xfs_buf_ops xfs_bmbt_buf_ops;
extern const struct xfs_buf_ops xfs_bnobt_buf_ops;
extern const struct xfs_buf_ops xfs_cntbt_buf_ops;
extern const struct xfs_buf_ops xfs_da3_node_buf_ops;
extern const struct xfs_buf_ops xfs_dquot_buf_ops;
extern const struct xfs_buf_ops xfs_symlink_buf_ops;
extern const struct xfs_buf_ops xfs_agi_buf_ops;
extern const struct xfs_buf_ops xfs_inobt_buf_ops;
extern const struct xfs_buf_ops xfs_dquot_buf_ra_ops;
extern const struct xfs_buf_ops xfs_finobt_buf_ops;
extern const struct xfs_buf_ops xfs_inobt_buf_ops;
extern const struct xfs_buf_ops xfs_inode_buf_ops;
extern const struct xfs_buf_ops xfs_inode_buf_ra_ops;
extern const struct xfs_buf_ops xfs_dquot_buf_ops;
extern const struct xfs_buf_ops xfs_dquot_buf_ra_ops;
extern const struct xfs_buf_ops xfs_refcountbt_buf_ops;
extern const struct xfs_buf_ops xfs_rmapbt_buf_ops;
extern const struct xfs_buf_ops xfs_rtbuf_ops;
extern const struct xfs_buf_ops xfs_sb_buf_ops;
extern const struct xfs_buf_ops xfs_sb_quiet_buf_ops;
extern const struct xfs_buf_ops xfs_symlink_buf_ops;
extern const struct xfs_buf_ops xfs_rtbuf_ops;
/* log size calculation functions */
int xfs_log_calc_unit_res(struct xfs_mount *mp, int unit_bytes);

4
fs/xfs/libxfs/xfs_types.c
View File

@ -11,6 +11,7 @@
#include "xfs_trans_resv.h"
#include "xfs_bit.h"
#include "xfs_mount.h"
#include "xfs_ag.h"
/* Find the size of the AG, in blocks. */
inline xfs_agblock_t
@ -222,12 +223,13 @@ xfs_icount_range(
unsigned long long *max)
{
unsigned long long nr_inos = 0;
struct xfs_perag *pag;
xfs_agnumber_t agno;
/* root, rtbitmap, rtsum all live in the first chunk */
*min = XFS_INODES_PER_CHUNK;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
for_each_perag(mp, agno, pag) {
xfs_agino_t first, last;
xfs_agino_range(mp, agno, &first, &last);

1
fs/xfs/libxfs/xfs_types.h
View File

@ -21,6 +21,7 @@ typedef int32_t xfs_suminfo_t; /* type of bitmap summary info */
typedef uint32_t xfs_rtword_t; /* word type for bitmap manipulations */
typedef int64_t xfs_lsn_t; /* log sequence number */
typedef int64_t xfs_csn_t; /* CIL sequence number */
typedef uint32_t xfs_dablk_t; /* dir/attr block number (in file) */
typedef uint32_t xfs_dahash_t; /* dir/attr hash value */

1
fs/xfs/scrub/agheader.c
View File

@ -14,6 +14,7 @@
#include "xfs_alloc.h"
#include "xfs_ialloc.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
#include "scrub/scrub.h"
#include "scrub/common.h"

33
fs/xfs/scrub/agheader_repair.c
View File

@ -20,6 +20,7 @@
#include "xfs_rmap.h"
#include "xfs_rmap_btree.h"
#include "xfs_refcount_btree.h"
#include "xfs_ag.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/trace.h"
@ -245,8 +246,8 @@ xrep_agf_calc_from_btrees(
int error;
/* Update the AGF counters from the bnobt. */
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
XFS_BTNUM_BNO);
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_BNO);
error = xfs_alloc_query_all(cur, xrep_agf_walk_allocbt, &raa);
if (error)
goto err;
@ -259,8 +260,8 @@ xrep_agf_calc_from_btrees(
agf->agf_longest = cpu_to_be32(raa.longest);
/* Update the AGF counters from the cntbt. */
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
XFS_BTNUM_CNT);
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_CNT);
error = xfs_btree_count_blocks(cur, &blocks);
if (error)
goto err;
@ -268,7 +269,7 @@ xrep_agf_calc_from_btrees(
btreeblks += blocks - 1;
/* Update the AGF counters from the rmapbt. */
cur = xfs_rmapbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno);
cur = xfs_rmapbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.pag);
error = xfs_btree_count_blocks(cur, &blocks);
if (error)
goto err;
@ -281,7 +282,7 @@ xrep_agf_calc_from_btrees(
/* Update the AGF counters from the refcountbt. */
if (xfs_sb_version_hasreflink(&mp->m_sb)) {
cur = xfs_refcountbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.agno);
sc->sa.pag);
error = xfs_btree_count_blocks(cur, &blocks);
if (error)
goto err;
@ -453,7 +454,7 @@ xrep_agfl_walk_rmap(
/* Record all the OWN_AG blocks. */
if (rec->rm_owner == XFS_RMAP_OWN_AG) {
fsb = XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.agno,
fsb = XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.pag->pag_agno,
rec->rm_startblock);
error = xbitmap_set(ra->freesp, fsb, rec->rm_blockcount);
if (error)
@ -489,23 +490,23 @@ xrep_agfl_collect_blocks(
xbitmap_init(&ra.agmetablocks);
/* Find all space used by the free space btrees & rmapbt. */
cur = xfs_rmapbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno);
cur = xfs_rmapbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.pag);
error = xfs_rmap_query_all(cur, xrep_agfl_walk_rmap, &ra);
if (error)
goto err;
xfs_btree_del_cursor(cur, error);
/* Find all blocks currently being used by the bnobt. */
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
XFS_BTNUM_BNO);
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_BNO);
error = xbitmap_set_btblocks(&ra.agmetablocks, cur);
if (error)
goto err;
xfs_btree_del_cursor(cur, error);
/* Find all blocks currently being used by the cntbt. */
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
XFS_BTNUM_CNT);
cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_CNT);
error = xbitmap_set_btblocks(&ra.agmetablocks, cur);
if (error)
goto err;
@ -805,8 +806,8 @@ xrep_agi_calc_from_btrees(
xfs_agino_t freecount;
int error;
cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp, sc->sa.agno,
XFS_BTNUM_INO);
cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp,
sc->sa.pag, XFS_BTNUM_INO);
error = xfs_ialloc_count_inodes(cur, &count, &freecount);
if (error)
goto err;
@ -827,8 +828,8 @@ xrep_agi_calc_from_btrees(
xfs_sb_version_hasinobtcounts(&mp->m_sb)) {
xfs_agblock_t blocks;
cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp, sc->sa.agno,
XFS_BTNUM_FINO);
cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp,
sc->sa.pag, XFS_BTNUM_FINO);
error = xfs_btree_count_blocks(cur, &blocks);
if (error)
goto err;

3
fs/xfs/scrub/alloc.c
View File

@ -15,6 +15,7 @@
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/btree.h"
#include "xfs_ag.h"
/*
* Set us up to scrub free space btrees.
@ -93,7 +94,7 @@ xchk_allocbt_rec(
union xfs_btree_rec *rec)
{
struct xfs_mount *mp = bs->cur->bc_mp;
xfs_agnumber_t agno = bs->cur->bc_ag.agno;
xfs_agnumber_t agno = bs->cur->bc_ag.pag->pag_agno;
xfs_agblock_t bno;
xfs_extlen_t len;

21
fs/xfs/scrub/bmap.c
View File

@ -22,6 +22,7 @@
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/btree.h"
#include "xfs_ag.h"
/* Set us up with an inode's bmap. */
int
@ -514,7 +515,7 @@ xchk_bmap_check_rmap(
xchk_fblock_set_corrupt(sc, sbcri->whichfork,
rec->rm_offset);
if (irec.br_startblock != XFS_AGB_TO_FSB(sc->mp,
cur->bc_ag.agno, rec->rm_startblock))
cur->bc_ag.pag->pag_agno, rec->rm_startblock))
xchk_fblock_set_corrupt(sc, sbcri->whichfork,
rec->rm_offset);
if (irec.br_blockcount > rec->rm_blockcount)
@ -544,18 +545,18 @@ STATIC int
xchk_bmap_check_ag_rmaps(
struct xfs_scrub *sc,
int whichfork,
xfs_agnumber_t agno)
struct xfs_perag *pag)
{
struct xchk_bmap_check_rmap_info sbcri;
struct xfs_btree_cur *cur;
struct xfs_buf *agf;
int error;
error = xfs_alloc_read_agf(sc->mp, sc->tp, agno, 0, &agf);
error = xfs_alloc_read_agf(sc->mp, sc->tp, pag->pag_agno, 0, &agf);
if (error)
return error;
cur = xfs_rmapbt_init_cursor(sc->mp, sc->tp, agf, agno);
cur = xfs_rmapbt_init_cursor(sc->mp, sc->tp, agf, pag);
sbcri.sc = sc;
sbcri.whichfork = whichfork;
@ -575,6 +576,7 @@ xchk_bmap_check_rmaps(
int whichfork)
{
struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork);
struct xfs_perag *pag;
xfs_agnumber_t agno;
bool zero_size;
int error;
@ -607,15 +609,16 @@ xchk_bmap_check_rmaps(
(zero_size || ifp->if_nextents > 0))
return 0;
for (agno = 0; agno < sc->mp->m_sb.sb_agcount; agno++) {
error = xchk_bmap_check_ag_rmaps(sc, whichfork, agno);
for_each_perag(sc->mp, agno, pag) {
error = xchk_bmap_check_ag_rmaps(sc, whichfork, pag);
if (error)
return error;
break;
if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
break;
}
return 0;
if (pag)
xfs_perag_put(pag);
return error;
}
/*

15
fs/xfs/scrub/common.c
View File

@ -12,7 +12,6 @@
#include "xfs_btree.h"
#include "xfs_log_format.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_inode.h"
#include "xfs_icache.h"
#include "xfs_alloc.h"
@ -26,6 +25,7 @@
#include "xfs_trans_priv.h"
#include "xfs_attr.h"
#include "xfs_reflink.h"
#include "xfs_ag.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/trace.h"
@ -460,49 +460,48 @@ xchk_ag_btcur_init(
struct xchk_ag *sa)
{
struct xfs_mount *mp = sc->mp;
xfs_agnumber_t agno = sa->agno;
xchk_perag_get(sc->mp, sa);
if (sa->agf_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_BNO)) {
/* Set up a bnobt cursor for cross-referencing. */
sa->bno_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
agno, XFS_BTNUM_BNO);
sa->pag, XFS_BTNUM_BNO);
}
if (sa->agf_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_CNT)) {
/* Set up a cntbt cursor for cross-referencing. */
sa->cnt_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
agno, XFS_BTNUM_CNT);
sa->pag, XFS_BTNUM_CNT);
}
/* Set up a inobt cursor for cross-referencing. */
if (sa->agi_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_INO)) {
sa->ino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
agno, XFS_BTNUM_INO);
sa->pag, XFS_BTNUM_INO);
}
/* Set up a finobt cursor for cross-referencing. */
if (sa->agi_bp && xfs_sb_version_hasfinobt(&mp->m_sb) &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_FINO)) {
sa->fino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
agno, XFS_BTNUM_FINO);
sa->pag, XFS_BTNUM_FINO);
}
/* Set up a rmapbt cursor for cross-referencing. */
if (sa->agf_bp && xfs_sb_version_hasrmapbt(&mp->m_sb) &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_RMAP)) {
sa->rmap_cur = xfs_rmapbt_init_cursor(mp, sc->tp, sa->agf_bp,
agno);
sa->pag);
}
/* Set up a refcountbt cursor for cross-referencing. */
if (sa->agf_bp && xfs_sb_version_hasreflink(&mp->m_sb) &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_REFC)) {
sa->refc_cur = xfs_refcountbt_init_cursor(mp, sc->tp,
sa->agf_bp, agno);
sa->agf_bp, sa->pag);
}
}

42
fs/xfs/scrub/fscounters.c
View File

@ -9,11 +9,11 @@
#include "xfs_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_sb.h"
#include "xfs_alloc.h"
#include "xfs_ialloc.h"
#include "xfs_health.h"
#include "xfs_btree.h"
#include "xfs_ag.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/trace.h"
@ -71,11 +71,11 @@ xchk_fscount_warmup(
xfs_agnumber_t agno;
int error = 0;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
pag = xfs_perag_get(mp, agno);
for_each_perag(mp, agno, pag) {
if (xchk_should_terminate(sc, &error))
break;
if (pag->pagi_init && pag->pagf_init)
goto next_loop_perag;
continue;
/* Lock both AG headers. */
error = xfs_ialloc_read_agi(mp, sc->tp, agno, &agi_bp);
@ -89,21 +89,15 @@ xchk_fscount_warmup(
* These are supposed to be initialized by the header read
* function.
*/
error = -EFSCORRUPTED;
if (!pag->pagi_init || !pag->pagf_init)
if (!pag->pagi_init || !pag->pagf_init) {
error = -EFSCORRUPTED;
break;
}
xfs_buf_relse(agf_bp);
agf_bp = NULL;
xfs_buf_relse(agi_bp);
agi_bp = NULL;
next_loop_perag:
xfs_perag_put(pag);
pag = NULL;
error = 0;
if (xchk_should_terminate(sc, &error))
break;
}
if (agf_bp)
@ -196,13 +190,14 @@ retry:
fsc->ifree = 0;
fsc->fdblocks = 0;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
pag = xfs_perag_get(mp, agno);
for_each_perag(mp, agno, pag) {
if (xchk_should_terminate(sc, &error))
break;
/* This somehow got unset since the warmup? */
if (!pag->pagi_init || !pag->pagf_init) {
xfs_perag_put(pag);
return -EFSCORRUPTED;
error = -EFSCORRUPTED;
break;
}
/* Count all the inodes */
@ -216,10 +211,8 @@ retry:
fsc->fdblocks += pag->pagf_btreeblks;
} else {
error = xchk_fscount_btreeblks(sc, fsc, agno);
if (error) {
xfs_perag_put(pag);
if (error)
break;
}
}
/*
@ -229,12 +222,9 @@ retry:
fsc->fdblocks -= pag->pag_meta_resv.ar_reserved;
fsc->fdblocks -= pag->pag_rmapbt_resv.ar_orig_reserved;
xfs_perag_put(pag);
if (xchk_should_terminate(sc, &error))
break;
}
if (pag)
xfs_perag_put(pag);
if (error)
return error;

2
fs/xfs/scrub/health.c
View File

@ -8,7 +8,7 @@
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_btree.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_health.h"
#include "scrub/scrub.h"
#include "scrub/health.h"

9
fs/xfs/scrub/ialloc.c
View File

@ -21,6 +21,7 @@
#include "scrub/common.h"
#include "scrub/btree.h"
#include "scrub/trace.h"
#include "xfs_ag.h"
/*
* Set us up to scrub inode btrees.
@ -103,7 +104,7 @@ xchk_iallocbt_chunk(
xfs_extlen_t len)
{
struct xfs_mount *mp = bs->cur->bc_mp;
xfs_agnumber_t agno = bs->cur->bc_ag.agno;
xfs_agnumber_t agno = bs->cur->bc_ag.pag->pag_agno;
xfs_agblock_t bno;
bno = XFS_AGINO_TO_AGBNO(mp, agino);
@ -163,7 +164,7 @@ xchk_iallocbt_check_cluster_ifree(
* the record, compute which fs inode we're talking about.
*/
agino = irec->ir_startino + irec_ino;
fsino = XFS_AGINO_TO_INO(mp, bs->cur->bc_ag.agno, agino);
fsino = XFS_AGINO_TO_INO(mp, bs->cur->bc_ag.pag->pag_agno, agino);
irec_free = (irec->ir_free & XFS_INOBT_MASK(irec_ino));
if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC ||
@ -213,7 +214,7 @@ xchk_iallocbt_check_cluster(
struct xfs_mount *mp = bs->cur->bc_mp;
struct xfs_buf *cluster_bp;
unsigned int nr_inodes;
xfs_agnumber_t agno = bs->cur->bc_ag.agno;
xfs_agnumber_t agno = bs->cur->bc_ag.pag->pag_agno;
xfs_agblock_t agbno;
unsigned int cluster_index;
uint16_t cluster_mask = 0;
@ -423,7 +424,7 @@ xchk_iallocbt_rec(
struct xchk_iallocbt *iabt = bs->private;
struct xfs_inobt_rec_incore irec;
uint64_t holes;
xfs_agnumber_t agno = bs->cur->bc_ag.agno;
xfs_agnumber_t agno = bs->cur->bc_ag.pag->pag_agno;
xfs_agino_t agino;
xfs_extlen_t len;
int holecount;

3
fs/xfs/scrub/refcount.c
View File

@ -13,6 +13,7 @@
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/btree.h"
#include "xfs_ag.h"
/*
* Set us up to scrub reference count btrees.
@ -333,7 +334,7 @@ xchk_refcountbt_rec(
{
struct xfs_mount *mp = bs->cur->bc_mp;
xfs_agblock_t *cow_blocks = bs->private;
xfs_agnumber_t agno = bs->cur->bc_ag.agno;
xfs_agnumber_t agno = bs->cur->bc_ag.pag->pag_agno;
xfs_agblock_t bno;
xfs_extlen_t len;
xfs_nlink_t refcount;

14
fs/xfs/scrub/repair.c
View File

@ -22,6 +22,7 @@
#include "xfs_rmap_btree.h"
#include "xfs_refcount_btree.h"
#include "xfs_extent_busy.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
#include "xfs_quota.h"
#include "scrub/scrub.h"
@ -303,7 +304,7 @@ xrep_alloc_ag_block(
return error;
if (bno == NULLAGBLOCK)
return -ENOSPC;
xfs_extent_busy_reuse(sc->mp, sc->sa.agno, bno,
xfs_extent_busy_reuse(sc->mp, sc->sa.pag, bno,
1, false);
*fsbno = XFS_AGB_TO_FSB(sc->mp, sc->sa.agno, bno);
if (resv == XFS_AG_RESV_RMAPBT)
@ -508,7 +509,7 @@ xrep_put_freelist(
* create an rmap for the block prior to merging it or else other
* parts will break.
*/
error = xfs_rmap_alloc(sc->tp, sc->sa.agf_bp, sc->sa.agno, agbno, 1,
error = xfs_rmap_alloc(sc->tp, sc->sa.agf_bp, sc->sa.pag, agbno, 1,
&XFS_RMAP_OINFO_AG);
if (error)
return error;
@ -518,7 +519,7 @@ xrep_put_freelist(
agbno, 0);
if (error)
return error;
xfs_extent_busy_insert(sc->tp, sc->sa.agno, agbno, 1,
xfs_extent_busy_insert(sc->tp, sc->sa.pag, agbno, 1,
XFS_EXTENT_BUSY_SKIP_DISCARD);
return 0;
@ -554,7 +555,7 @@ xrep_reap_block(
} else {
agf_bp = sc->sa.agf_bp;
}
cur = xfs_rmapbt_init_cursor(sc->mp, sc->tp, agf_bp, agno);
cur = xfs_rmapbt_init_cursor(sc->mp, sc->tp, agf_bp, sc->sa.pag);
/* Can we find any other rmappings? */
error = xfs_rmap_has_other_keys(cur, agbno, 1, oinfo, &has_other_rmap);
@ -576,7 +577,8 @@ xrep_reap_block(
* to run xfs_repair.
*/
if (has_other_rmap)
error = xfs_rmap_free(sc->tp, agf_bp, agno, agbno, 1, oinfo);
error = xfs_rmap_free(sc->tp, agf_bp, sc->sa.pag, agbno,
1, oinfo);
else if (resv == XFS_AG_RESV_AGFL)
error = xrep_put_freelist(sc, agbno);
else
@ -891,7 +893,7 @@ xrep_find_ag_btree_roots(
fab->height = 0;
}
cur = xfs_rmapbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno);
cur = xfs_rmapbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.pag);
error = xfs_rmap_query_all(cur, xrep_findroot_rmap, &ri);
xfs_btree_del_cursor(cur, error);

3
fs/xfs/scrub/rmap.c
View File

@ -15,6 +15,7 @@
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/btree.h"
#include "xfs_ag.h"
/*
* Set us up to scrub reverse mapping btrees.
@ -91,7 +92,7 @@ xchk_rmapbt_rec(
{
struct xfs_mount *mp = bs->cur->bc_mp;
struct xfs_rmap_irec irec;
xfs_agnumber_t agno = bs->cur->bc_ag.agno;
xfs_agnumber_t agno = bs->cur->bc_ag.pag->pag_agno;
bool non_inode;
bool is_unwritten;
bool is_bmbt;

3
fs/xfs/scrub/trace.c
View File

@ -13,6 +13,7 @@
#include "xfs_inode.h"
#include "xfs_btree.h"
#include "scrub/scrub.h"
#include "xfs_ag.h"
/* Figure out which block the btree cursor was pointing to. */
static inline xfs_fsblock_t
@ -26,7 +27,7 @@ xchk_btree_cur_fsbno(
cur->bc_flags & XFS_BTREE_LONG_PTRS)
return XFS_INO_TO_FSB(cur->bc_mp, cur->bc_ino.ip->i_ino);
else if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS))
return XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.agno, 0);
return XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.pag->pag_agno, 0);
return NULLFSBLOCK;
}

2
fs/xfs/xfs_attr_inactive.c
View File

@ -15,10 +15,10 @@
#include "xfs_da_format.h"
#include "xfs_da_btree.h"
#include "xfs_inode.h"
#include "xfs_attr.h"
#include "xfs_attr_remote.h"
#include "xfs_trans.h"
#include "xfs_bmap.h"
#include "xfs_attr.h"
#include "xfs_attr_leaf.h"
#include "xfs_quota.h"
#include "xfs_dir2.h"

35
fs/xfs/xfs_bio_io.c
View File

@ -9,6 +9,41 @@ static inline unsigned int bio_max_vecs(unsigned int count)
return bio_max_segs(howmany(count, PAGE_SIZE));
}
static void
xfs_flush_bdev_async_endio(
struct bio *bio)
{
complete(bio->bi_private);
}
/*
* Submit a request for an async cache flush to run. If the request queue does
* not require flush operations, just skip it altogether. If the caller needs
* to wait for the flush completion at a later point in time, they must supply a
* valid completion. This will be signalled when the flush completes. The
* caller never sees the bio that is issued here.
*/
void
xfs_flush_bdev_async(
struct bio *bio,
struct block_device *bdev,
struct completion *done)
{
struct request_queue *q = bdev->bd_disk->queue;
if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags)) {
complete(done);
return;
}
bio_init(bio, NULL, 0);
bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC;
bio->bi_private = done;
bio->bi_end_io = xfs_flush_bdev_async_endio;
submit_bio(bio);
}
int
xfs_rw_bdev(
struct block_device *bdev,

6
fs/xfs/xfs_bmap_util.c
View File

@ -945,7 +945,7 @@ xfs_flush_unmap_range(
xfs_off_t rounding, start, end;
int error;
rounding = max_t(xfs_off_t, 1 << mp->m_sb.sb_blocklog, PAGE_SIZE);
rounding = max_t(xfs_off_t, mp->m_sb.sb_blocksize, PAGE_SIZE);
start = round_down(offset, rounding);
end = round_up(offset + len, rounding) - 1;
@ -1053,9 +1053,9 @@ xfs_prepare_shift(
* extent (after split) during the shift and corrupt the file. Start
* with the block just prior to the start to stabilize the boundary.
*/
offset = round_down(offset, 1 << mp->m_sb.sb_blocklog);
offset = round_down(offset, mp->m_sb.sb_blocksize);
if (offset)
offset -= (1 << mp->m_sb.sb_blocklog);
offset -= mp->m_sb.sb_blocksize;
/*
* Writeback and invalidate cache for the remainder of the file as we're

311
fs/xfs/xfs_buf.c
View File

@ -10,7 +10,6 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_trace.h"
#include "xfs_log.h"
@ -19,12 +18,10 @@
#include "xfs_buf_item.h"
#include "xfs_errortag.h"
#include "xfs_error.h"
#include "xfs_ag.h"
static kmem_zone_t *xfs_buf_zone;
#define xb_to_gfp(flags) \
((((flags) & XBF_READ_AHEAD) ? __GFP_NORETRY : GFP_NOFS) | __GFP_NOWARN)
/*
* Locking orders
*
@ -79,7 +76,7 @@ static inline int
xfs_buf_vmap_len(
struct xfs_buf *bp)
{
return (bp->b_page_count * PAGE_SIZE) - bp->b_offset;
return (bp->b_page_count * PAGE_SIZE);
}
/*
@ -272,51 +269,30 @@ _xfs_buf_alloc(
return 0;
}
/*
* Allocate a page array capable of holding a specified number
* of pages, and point the page buf at it.
*/
STATIC int
_xfs_buf_get_pages(
struct xfs_buf *bp,
int page_count)
{
/* Make sure that we have a page list */
if (bp->b_pages == NULL) {
bp->b_page_count = page_count;
if (page_count <= XB_PAGES) {
bp->b_pages = bp->b_page_array;
} else {
bp->b_pages = kmem_alloc(sizeof(struct page *) *
page_count, KM_NOFS);
if (bp->b_pages == NULL)
return -ENOMEM;
}
memset(bp->b_pages, 0, sizeof(struct page *) * page_count);
}
return 0;
}
/*
* Frees b_pages if it was allocated.
*/
STATIC void
_xfs_buf_free_pages(
static void
xfs_buf_free_pages(
struct xfs_buf *bp)
{
if (bp->b_pages != bp->b_page_array) {
kmem_free(bp->b_pages);
bp->b_pages = NULL;
uint i;
ASSERT(bp->b_flags & _XBF_PAGES);
if (xfs_buf_is_vmapped(bp))
vm_unmap_ram(bp->b_addr, bp->b_page_count);
for (i = 0; i < bp->b_page_count; i++) {
if (bp->b_pages[i])
__free_page(bp->b_pages[i]);
}
if (current->reclaim_state)
current->reclaim_state->reclaimed_slab += bp->b_page_count;
if (bp->b_pages != bp->b_page_array)
kmem_free(bp->b_pages);
bp->b_pages = NULL;
bp->b_flags &= ~_XBF_PAGES;
}
/*
* Releases the specified buffer.
*
* The modification state of any associated pages is left unchanged.
* The buffer must not be on any hash - use xfs_buf_rele instead for
* hashed and refcounted buffers
*/
static void
xfs_buf_free(
struct xfs_buf *bp)
@ -325,137 +301,103 @@ xfs_buf_free(
ASSERT(list_empty(&bp->b_lru));
if (bp->b_flags & _XBF_PAGES) {
uint i;
if (xfs_buf_is_vmapped(bp))
vm_unmap_ram(bp->b_addr - bp->b_offset,
bp->b_page_count);
for (i = 0; i < bp->b_page_count; i++) {
struct page *page = bp->b_pages[i];
__free_page(page);
}
if (current->reclaim_state)
current->reclaim_state->reclaimed_slab +=
bp->b_page_count;
} else if (bp->b_flags & _XBF_KMEM)
if (bp->b_flags & _XBF_PAGES)
xfs_buf_free_pages(bp);
else if (bp->b_flags & _XBF_KMEM)
kmem_free(bp->b_addr);
_xfs_buf_free_pages(bp);
xfs_buf_free_maps(bp);
kmem_cache_free(xfs_buf_zone, bp);
}
/*
* Allocates all the pages for buffer in question and builds it's page list.
*/
STATIC int
xfs_buf_allocate_memory(
struct xfs_buf *bp,
uint flags)
static int
xfs_buf_alloc_kmem(
struct xfs_buf *bp,
xfs_buf_flags_t flags)
{
size_t size;
size_t nbytes, offset;
gfp_t gfp_mask = xb_to_gfp(flags);
unsigned short page_count, i;
xfs_off_t start, end;
int error;
xfs_km_flags_t kmflag_mask = 0;
int align_mask = xfs_buftarg_dma_alignment(bp->b_target);
xfs_km_flags_t kmflag_mask = KM_NOFS;
size_t size = BBTOB(bp->b_length);
/*
* assure zeroed buffer for non-read cases.
*/
if (!(flags & XBF_READ)) {
/* Assure zeroed buffer for non-read cases. */
if (!(flags & XBF_READ))
kmflag_mask |= KM_ZERO;
gfp_mask |= __GFP_ZERO;
bp->b_addr = kmem_alloc_io(size, align_mask, kmflag_mask);
if (!bp->b_addr)
return -ENOMEM;
if (((unsigned long)(bp->b_addr + size - 1) & PAGE_MASK) !=
((unsigned long)bp->b_addr & PAGE_MASK)) {
/* b_addr spans two pages - use alloc_page instead */
kmem_free(bp->b_addr);
bp->b_addr = NULL;
return -ENOMEM;
}
bp->b_offset = offset_in_page(bp->b_addr);
bp->b_pages = bp->b_page_array;
bp->b_pages[0] = kmem_to_page(bp->b_addr);
bp->b_page_count = 1;
bp->b_flags |= _XBF_KMEM;
return 0;
}
/*
* for buffers that are contained within a single page, just allocate
* the memory from the heap - there's no need for the complexity of
* page arrays to keep allocation down to order 0.
*/
size = BBTOB(bp->b_length);
if (size < PAGE_SIZE) {
int align_mask = xfs_buftarg_dma_alignment(bp->b_target);
bp->b_addr = kmem_alloc_io(size, align_mask,
KM_NOFS | kmflag_mask);
if (!bp->b_addr) {
/* low memory - use alloc_page loop instead */
goto use_alloc_page;
}
static int
xfs_buf_alloc_pages(
struct xfs_buf *bp,
xfs_buf_flags_t flags)
{
gfp_t gfp_mask = __GFP_NOWARN;
long filled = 0;
if (((unsigned long)(bp->b_addr + size - 1) & PAGE_MASK) !=
((unsigned long)bp->b_addr & PAGE_MASK)) {
/* b_addr spans two pages - use alloc_page instead */
kmem_free(bp->b_addr);
bp->b_addr = NULL;
goto use_alloc_page;
}
bp->b_offset = offset_in_page(bp->b_addr);
if (flags & XBF_READ_AHEAD)
gfp_mask |= __GFP_NORETRY;
else
gfp_mask |= GFP_NOFS;
/* Make sure that we have a page list */
bp->b_page_count = DIV_ROUND_UP(BBTOB(bp->b_length), PAGE_SIZE);
if (bp->b_page_count <= XB_PAGES) {
bp->b_pages = bp->b_page_array;
bp->b_pages[0] = kmem_to_page(bp->b_addr);
bp->b_page_count = 1;
bp->b_flags |= _XBF_KMEM;
return 0;
} else {
bp->b_pages = kzalloc(sizeof(struct page *) * bp->b_page_count,
gfp_mask);
if (!bp->b_pages)
return -ENOMEM;
}
use_alloc_page:
start = BBTOB(bp->b_maps[0].bm_bn) >> PAGE_SHIFT;
end = (BBTOB(bp->b_maps[0].bm_bn + bp->b_length) + PAGE_SIZE - 1)
>> PAGE_SHIFT;
page_count = end - start;
error = _xfs_buf_get_pages(bp, page_count);
if (unlikely(error))
return error;
offset = bp->b_offset;
bp->b_flags |= _XBF_PAGES;
for (i = 0; i < bp->b_page_count; i++) {
struct page *page;
uint retries = 0;
retry:
page = alloc_page(gfp_mask);
if (unlikely(page == NULL)) {
if (flags & XBF_READ_AHEAD) {
bp->b_page_count = i;
error = -ENOMEM;
goto out_free_pages;
}
/* Assure zeroed buffer for non-read cases. */
if (!(flags & XBF_READ))
gfp_mask |= __GFP_ZERO;
/*
* This could deadlock.
*
* But until all the XFS lowlevel code is revamped to
* handle buffer allocation failures we can't do much.
*/
if (!(++retries % 100))
xfs_err(NULL,
"%s(%u) possible memory allocation deadlock in %s (mode:0x%x)",
current->comm, current->pid,
__func__, gfp_mask);
/*
* Bulk filling of pages can take multiple calls. Not filling the entire
* array is not an allocation failure, so don't back off if we get at
* least one extra page.
*/
for (;;) {
long last = filled;
XFS_STATS_INC(bp->b_mount, xb_page_retries);
congestion_wait(BLK_RW_ASYNC, HZ/50);
goto retry;
filled = alloc_pages_bulk_array(gfp_mask, bp->b_page_count,
bp->b_pages);
if (filled == bp->b_page_count) {
XFS_STATS_INC(bp->b_mount, xb_page_found);
break;
}
XFS_STATS_INC(bp->b_mount, xb_page_found);
if (filled != last)
continue;
nbytes = min_t(size_t, size, PAGE_SIZE - offset);
size -= nbytes;
bp->b_pages[i] = page;
offset = 0;
if (flags & XBF_READ_AHEAD) {
xfs_buf_free_pages(bp);
return -ENOMEM;
}
XFS_STATS_INC(bp->b_mount, xb_page_retries);
congestion_wait(BLK_RW_ASYNC, HZ / 50);
}
return 0;
out_free_pages:
for (i = 0; i < bp->b_page_count; i++)
__free_page(bp->b_pages[i]);
bp->b_flags &= ~_XBF_PAGES;
return error;
}
/*
@ -469,7 +411,7 @@ _xfs_buf_map_pages(
ASSERT(bp->b_flags & _XBF_PAGES);
if (bp->b_page_count == 1) {
/* A single page buffer is always mappable */
bp->b_addr = page_address(bp->b_pages[0]) + bp->b_offset;
bp->b_addr = page_address(bp->b_pages[0]);
} else if (flags & XBF_UNMAPPED) {
bp->b_addr = NULL;
} else {
@ -496,7 +438,6 @@ _xfs_buf_map_pages(
if (!bp->b_addr)
return -ENOMEM;
bp->b_addr += bp->b_offset;
}
return 0;
@ -707,7 +648,7 @@ xfs_buf_get_map(
{
struct xfs_buf *bp;
struct xfs_buf *new_bp;
int error = 0;
int error;
*bpp = NULL;
error = xfs_buf_find(target, map, nmaps, flags, NULL, &bp);
@ -720,17 +661,22 @@ xfs_buf_get_map(
if (error)
return error;
error = xfs_buf_allocate_memory(new_bp, flags);
if (error) {
xfs_buf_free(new_bp);
return error;
/*
* For buffers that fit entirely within a single page, first attempt to
* allocate the memory from the heap to minimise memory usage. If we
* can't get heap memory for these small buffers, we fall back to using
* the page allocator.
*/
if (BBTOB(new_bp->b_length) >= PAGE_SIZE ||
xfs_buf_alloc_kmem(new_bp, flags) < 0) {
error = xfs_buf_alloc_pages(new_bp, flags);
if (error)
goto out_free_buf;
}
error = xfs_buf_find(target, map, nmaps, flags, new_bp, &bp);
if (error) {
xfs_buf_free(new_bp);
return error;
}
if (error)
goto out_free_buf;
if (bp != new_bp)
xfs_buf_free(new_bp);
@ -758,6 +704,9 @@ found:
trace_xfs_buf_get(bp, flags, _RET_IP_);
*bpp = bp;
return 0;
out_free_buf:
xfs_buf_free(new_bp);
return error;
}
int
@ -950,8 +899,7 @@ xfs_buf_get_uncached(
int flags,
struct xfs_buf **bpp)
{
unsigned long page_count;
int error, i;
int error;
struct xfs_buf *bp;
DEFINE_SINGLE_BUF_MAP(map, XFS_BUF_DADDR_NULL, numblks);
@ -960,41 +908,25 @@ xfs_buf_get_uncached(
/* flags might contain irrelevant bits, pass only what we care about */
error = _xfs_buf_alloc(target, &map, 1, flags & XBF_NO_IOACCT, &bp);
if (error)
goto fail;
return error;
page_count = PAGE_ALIGN(numblks << BBSHIFT) >> PAGE_SHIFT;
error = _xfs_buf_get_pages(bp, page_count);
error = xfs_buf_alloc_pages(bp, flags);
if (error)
goto fail_free_buf;
for (i = 0; i < page_count; i++) {
bp->b_pages[i] = alloc_page(xb_to_gfp(flags));
if (!bp->b_pages[i]) {
error = -ENOMEM;
goto fail_free_mem;
}
}
bp->b_flags |= _XBF_PAGES;
error = _xfs_buf_map_pages(bp, 0);
if (unlikely(error)) {
xfs_warn(target->bt_mount,
"%s: failed to map pages", __func__);
goto fail_free_mem;
goto fail_free_buf;
}
trace_xfs_buf_get_uncached(bp, _RET_IP_);
*bpp = bp;
return 0;
fail_free_mem:
while (--i >= 0)
__free_page(bp->b_pages[i]);
_xfs_buf_free_pages(bp);
fail_free_buf:
xfs_buf_free_maps(bp);
kmem_cache_free(xfs_buf_zone, bp);
fail:
fail_free_buf:
xfs_buf_free(bp);
return error;
}
@ -1722,7 +1654,6 @@ xfs_buf_offset(
if (bp->b_addr)
return bp->b_addr + offset;
offset += bp->b_offset;
page = bp->b_pages[offset >> PAGE_SHIFT];
return page_address(page) + (offset & (PAGE_SIZE-1));
}
@ -1958,7 +1889,7 @@ xfs_free_buftarg(
percpu_counter_destroy(&btp->bt_io_count);
list_lru_destroy(&btp->bt_lru);
xfs_blkdev_issue_flush(btp);
blkdev_issue_flush(btp->bt_bdev);
kmem_free(btp);
}

3
fs/xfs/xfs_buf.h
View File

@ -167,7 +167,8 @@ struct xfs_buf {
atomic_t b_pin_count; /* pin count */
atomic_t b_io_remaining; /* #outstanding I/O requests */
unsigned int b_page_count; /* size of page array */
unsigned int b_offset; /* page offset in first page */
unsigned int b_offset; /* page offset of b_addr,
only for _XBF_KMEM buffers */
int b_error; /* error code on I/O */
/*

97
fs/xfs/xfs_buf_item.c
View File

@ -74,14 +74,12 @@ xfs_buf_item_straddle(
}
/*
* This returns the number of log iovecs needed to log the
* given buf log item.
* Return the number of log iovecs and space needed to log the given buf log
* item segment.
*
* It calculates this as 1 iovec for the buf log format structure
* and 1 for each stretch of non-contiguous chunks to be logged.
* Contiguous chunks are logged in a single iovec.
*
* If the XFS_BLI_STALE flag has been set, then log nothing.
* It calculates this as 1 iovec for the buf log format structure and 1 for each
* stretch of non-contiguous chunks to be logged. Contiguous chunks are logged
* in a single iovec.
*/
STATIC void
xfs_buf_item_size_segment(
@ -168,11 +166,8 @@ slow_scan:
}
/*
* This returns the number of log iovecs needed to log the given buf log item.
*
* It calculates this as 1 iovec for the buf log format structure and 1 for each
* stretch of non-contiguous chunks to be logged. Contiguous chunks are logged
* in a single iovec.
* Return the number of log iovecs and space needed to log the given buf log
* item.
*
* Discontiguous buffers need a format structure per region that is being
* logged. This makes the changes in the buffer appear to log recovery as though
@ -182,7 +177,11 @@ slow_scan:
* what ends up on disk.
*
* If the XFS_BLI_STALE flag has been set, then log nothing but the buf log
* format structures.
* format structures. If the item has previously been logged and has dirty
* regions, we do not relog them in stale buffers. This has the effect of
* reducing the size of the relogged item by the amount of dirty data tracked
* by the log item. This can result in the committing transaction reducing the
* amount of space being consumed by the CIL.
*/
STATIC void
xfs_buf_item_size(
@ -199,9 +198,9 @@ xfs_buf_item_size(
ASSERT(atomic_read(&bip->bli_refcount) > 0);
if (bip->bli_flags & XFS_BLI_STALE) {
/*
* The buffer is stale, so all we need to log
* is the buf log format structure with the
* cancel flag in it.
* The buffer is stale, so all we need to log is the buf log
* format structure with the cancel flag in it as we are never
* going to replay the changes tracked in the log item.
*/
trace_xfs_buf_item_size_stale(bip);
ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL);
@ -216,9 +215,9 @@ xfs_buf_item_size(
if (bip->bli_flags & XFS_BLI_ORDERED) {
/*
* The buffer has been logged just to order it.
* It is not being included in the transaction
* commit, so no vectors are used at all.
* The buffer has been logged just to order it. It is not being
* included in the transaction commit, so no vectors are used at
* all.
*/
trace_xfs_buf_item_size_ordered(bip);
*nvecs = XFS_LOG_VEC_ORDERED;
@ -475,17 +474,8 @@ xfs_buf_item_pin(
}
/*
* This is called to unpin the buffer associated with the buf log
* item which was previously pinned with a call to xfs_buf_item_pin().
*
* Also drop the reference to the buf item for the current transaction.
* If the XFS_BLI_STALE flag is set and we are the last reference,
* then free up the buf log item and unlock the buffer.
*
* If the remove flag is set we are called from uncommit in the
* forced-shutdown path. If that is true and the reference count on
* the log item is going to drop to zero we need to free the item's
* descriptor in the transaction.
* This is called to unpin the buffer associated with the buf log item which
* was previously pinned with a call to xfs_buf_item_pin().
*/
STATIC void
xfs_buf_item_unpin(
@ -502,38 +492,35 @@ xfs_buf_item_unpin(
trace_xfs_buf_item_unpin(bip);
/*
* Drop the bli ref associated with the pin and grab the hold required
* for the I/O simulation failure in the abort case. We have to do this
* before the pin count drops because the AIL doesn't acquire a bli
* reference. Therefore if the refcount drops to zero, the bli could
* still be AIL resident and the buffer submitted for I/O (and freed on
* completion) at any point before we return. This can be removed once
* the AIL properly holds a reference on the bli.
*/
freed = atomic_dec_and_test(&bip->bli_refcount);
if (freed && !stale && remove)
xfs_buf_hold(bp);
if (atomic_dec_and_test(&bp->b_pin_count))
wake_up_all(&bp->b_waiters);
if (freed && stale) {
/* nothing to do but drop the pin count if the bli is active */
if (!freed)
return;
if (stale) {
ASSERT(bip->bli_flags & XFS_BLI_STALE);
ASSERT(xfs_buf_islocked(bp));
ASSERT(bp->b_flags & XBF_STALE);
ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL);
ASSERT(list_empty(&lip->li_trans));
ASSERT(!bp->b_transp);
trace_xfs_buf_item_unpin_stale(bip);
if (remove) {
/*
* If we are in a transaction context, we have to
* remove the log item from the transaction as we are
* about to release our reference to the buffer. If we
* don't, the unlock that occurs later in
* xfs_trans_uncommit() will try to reference the
* buffer which we no longer have a hold on.
*/
if (!list_empty(&lip->li_trans))
xfs_trans_del_item(lip);
/*
* Since the transaction no longer refers to the buffer,
* the buffer should no longer refer to the transaction.
*/
bp->b_transp = NULL;
}
/*
* If we get called here because of an IO error, we may or may
* not have the item on the AIL. xfs_trans_ail_delete() will
@ -550,13 +537,13 @@ xfs_buf_item_unpin(
ASSERT(bp->b_log_item == NULL);
}
xfs_buf_relse(bp);
} else if (freed && remove) {
} else if (remove) {
/*
* The buffer must be locked and held by the caller to simulate
* an async I/O failure.
* an async I/O failure. We acquired the hold for this case
* before the buffer was unpinned.
*/
xfs_buf_lock(bp);
xfs_buf_hold(bp);
bp->b_flags |= XBF_ASYNC;
xfs_buf_ioend_fail(bp);
}
@ -714,7 +701,7 @@ xfs_buf_item_release(
STATIC void
xfs_buf_item_committing(
struct xfs_log_item *lip,
xfs_lsn_t commit_lsn)
xfs_csn_t seq)
{
return xfs_buf_item_release(lip);
}

6
fs/xfs/xfs_discard.c
View File

@ -8,7 +8,6 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_btree.h"
#include "xfs_alloc_btree.h"
@ -18,6 +17,7 @@
#include "xfs_extent_busy.h"
#include "xfs_trace.h"
#include "xfs_log.h"
#include "xfs_ag.h"
STATIC int
xfs_trim_extents(
@ -50,7 +50,7 @@ xfs_trim_extents(
goto out_put_perag;
agf = agbp->b_addr;
cur = xfs_allocbt_init_cursor(mp, NULL, agbp, agno, XFS_BTNUM_CNT);
cur = xfs_allocbt_init_cursor(mp, NULL, agbp, pag, XFS_BTNUM_CNT);
/*
* Look up the longest btree in the AGF and start with it.
@ -108,7 +108,7 @@ xfs_trim_extents(
* If any blocks in the range are still busy, skip the
* discard and try again the next time.
*/
if (xfs_extent_busy_search(mp, agno, fbno, flen)) {
if (xfs_extent_busy_search(mp, pag, fbno, flen)) {
trace_xfs_discard_busy(mp, agno, fbno, flen);
goto next_extent;
}

2
fs/xfs/xfs_dquot_item.c
View File

@ -188,7 +188,7 @@ xfs_qm_dquot_logitem_release(
STATIC void
xfs_qm_dquot_logitem_committing(
struct xfs_log_item *lip,
xfs_lsn_t commit_lsn)
xfs_csn_t seq)
{
return xfs_qm_dquot_logitem_release(lip);
}

35
fs/xfs/xfs_extent_busy.c
View File

@ -11,39 +11,37 @@
#include "xfs_log_format.h"
#include "xfs_shared.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_alloc.h"
#include "xfs_extent_busy.h"
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_log.h"
#include "xfs_ag.h"
void
xfs_extent_busy_insert(
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agblock_t bno,
xfs_extlen_t len,
unsigned int flags)
{
struct xfs_extent_busy *new;
struct xfs_extent_busy *busyp;
struct xfs_perag *pag;
struct rb_node **rbp;
struct rb_node *parent = NULL;
new = kmem_zalloc(sizeof(struct xfs_extent_busy), 0);
new->agno = agno;
new->agno = pag->pag_agno;
new->bno = bno;
new->length = len;
INIT_LIST_HEAD(&new->list);
new->flags = flags;
/* trace before insert to be able to see failed inserts */
trace_xfs_extent_busy(tp->t_mountp, agno, bno, len);
trace_xfs_extent_busy(tp->t_mountp, pag->pag_agno, bno, len);
pag = xfs_perag_get(tp->t_mountp, new->agno);
spin_lock(&pag->pagb_lock);
rbp = &pag->pagb_tree.rb_node;
while (*rbp) {
@ -66,7 +64,6 @@ xfs_extent_busy_insert(
list_add(&new->list, &tp->t_busy);
spin_unlock(&pag->pagb_lock);
xfs_perag_put(pag);
}
/*
@ -81,21 +78,17 @@ xfs_extent_busy_insert(
int
xfs_extent_busy_search(
struct xfs_mount *mp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agblock_t bno,
xfs_extlen_t len)
{
struct xfs_perag *pag;
struct rb_node *rbp;
struct xfs_extent_busy *busyp;
int match = 0;
pag = xfs_perag_get(mp, agno);
spin_lock(&pag->pagb_lock);
rbp = pag->pagb_tree.rb_node;
/* find closest start bno overlap */
spin_lock(&pag->pagb_lock);
rbp = pag->pagb_tree.rb_node;
while (rbp) {
busyp = rb_entry(rbp, struct xfs_extent_busy, rb_node);
if (bno < busyp->bno) {
@ -115,7 +108,6 @@ xfs_extent_busy_search(
}
}
spin_unlock(&pag->pagb_lock);
xfs_perag_put(pag);
return match;
}
@ -281,17 +273,14 @@ out_force_log:
void
xfs_extent_busy_reuse(
struct xfs_mount *mp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agblock_t fbno,
xfs_extlen_t flen,
bool userdata)
{
struct xfs_perag *pag;
struct rb_node *rbp;
ASSERT(flen > 0);
pag = xfs_perag_get(mp, agno);
spin_lock(&pag->pagb_lock);
restart:
rbp = pag->pagb_tree.rb_node;
@ -314,7 +303,6 @@ restart:
goto restart;
}
spin_unlock(&pag->pagb_lock);
xfs_perag_put(pag);
}
/*
@ -605,12 +593,11 @@ void
xfs_extent_busy_wait_all(
struct xfs_mount *mp)
{
struct xfs_perag *pag;
DEFINE_WAIT (wait);
xfs_agnumber_t agno;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
struct xfs_perag *pag = xfs_perag_get(mp, agno);
for_each_perag(mp, agno, pag) {
do {
prepare_to_wait(&pag->pagb_wait, &wait, TASK_KILLABLE);
if (RB_EMPTY_ROOT(&pag->pagb_tree))
@ -618,8 +605,6 @@ xfs_extent_busy_wait_all(
schedule();
} while (1);
finish_wait(&pag->pagb_wait, &wait);
xfs_perag_put(pag);
}
}

7
fs/xfs/xfs_extent_busy.h
View File

@ -9,6 +9,7 @@
#define __XFS_EXTENT_BUSY_H__
struct xfs_mount;
struct xfs_perag;
struct xfs_trans;
struct xfs_alloc_arg;
@ -31,7 +32,7 @@ struct xfs_extent_busy {
};
void
xfs_extent_busy_insert(struct xfs_trans *tp, xfs_agnumber_t agno,
xfs_extent_busy_insert(struct xfs_trans *tp, struct xfs_perag *pag,
xfs_agblock_t bno, xfs_extlen_t len, unsigned int flags);
void
@ -39,11 +40,11 @@ xfs_extent_busy_clear(struct xfs_mount *mp, struct list_head *list,
bool do_discard);
int
xfs_extent_busy_search(struct xfs_mount *mp, xfs_agnumber_t agno,
xfs_extent_busy_search(struct xfs_mount *mp, struct xfs_perag *pag,
xfs_agblock_t bno, xfs_extlen_t len);
void
xfs_extent_busy_reuse(struct xfs_mount *mp, xfs_agnumber_t agno,
xfs_extent_busy_reuse(struct xfs_mount *mp, struct xfs_perag *pag,
xfs_agblock_t fbno, xfs_extlen_t flen, bool userdata);
bool

70
fs/xfs/xfs_file.c
View File

@ -119,8 +119,8 @@ xfs_dir_fsync(
return xfs_log_force_inode(ip);
}
static xfs_lsn_t
xfs_fsync_lsn(
static xfs_csn_t
xfs_fsync_seq(
struct xfs_inode *ip,
bool datasync)
{
@ -128,7 +128,7 @@ xfs_fsync_lsn(
return 0;
if (datasync && !(ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
return 0;
return ip->i_itemp->ili_last_lsn;
return ip->i_itemp->ili_commit_seq;
}
/*
@ -151,12 +151,12 @@ xfs_fsync_flush_log(
int *log_flushed)
{
int error = 0;
xfs_lsn_t lsn;
xfs_csn_t seq;
xfs_ilock(ip, XFS_ILOCK_SHARED);
lsn = xfs_fsync_lsn(ip, datasync);
if (lsn) {
error = xfs_log_force_lsn(ip->i_mount, lsn, XFS_LOG_SYNC,
seq = xfs_fsync_seq(ip, datasync);
if (seq) {
error = xfs_log_force_seq(ip->i_mount, seq, XFS_LOG_SYNC,
log_flushed);
spin_lock(&ip->i_itemp->ili_lock);
@ -197,9 +197,9 @@ xfs_file_fsync(
* inode size in case of an extending write.
*/
if (XFS_IS_REALTIME_INODE(ip))
xfs_blkdev_issue_flush(mp->m_rtdev_targp);
blkdev_issue_flush(mp->m_rtdev_targp->bt_bdev);
else if (mp->m_logdev_targp != mp->m_ddev_targp)
xfs_blkdev_issue_flush(mp->m_ddev_targp);
blkdev_issue_flush(mp->m_ddev_targp->bt_bdev);
/*
* Any inode that has dirty modifications in the log is pinned. The
@ -219,7 +219,7 @@ xfs_file_fsync(
*/
if (!log_flushed && !XFS_IS_REALTIME_INODE(ip) &&
mp->m_logdev_targp == mp->m_ddev_targp)
xfs_blkdev_issue_flush(mp->m_ddev_targp);
blkdev_issue_flush(mp->m_ddev_targp->bt_bdev);
return error;
}
@ -384,21 +384,30 @@ restart:
}
goto restart;
}
/*
* If the offset is beyond the size of the file, we need to zero any
* blocks that fall between the existing EOF and the start of this
* write. If zeroing is needed and we are currently holding the
* iolock shared, we need to update it to exclusive which implies
* having to redo all checks before.
* write. If zeroing is needed and we are currently holding the iolock
* shared, we need to update it to exclusive which implies having to
* redo all checks before.
*
* We need to serialise against EOF updates that occur in IO
* completions here. We want to make sure that nobody is changing the
* size while we do this check until we have placed an IO barrier (i.e.
* hold the XFS_IOLOCK_EXCL) that prevents new IO from being dispatched.
* The spinlock effectively forms a memory barrier once we have the
* XFS_IOLOCK_EXCL so we are guaranteed to see the latest EOF value
* and hence be able to correctly determine if we need to run zeroing.
* We need to serialise against EOF updates that occur in IO completions
* here. We want to make sure that nobody is changing the size while we
* do this check until we have placed an IO barrier (i.e. hold the
* XFS_IOLOCK_EXCL) that prevents new IO from being dispatched. The
* spinlock effectively forms a memory barrier once we have the
* XFS_IOLOCK_EXCL so we are guaranteed to see the latest EOF value and
* hence be able to correctly determine if we need to run zeroing.
*
* We can do an unlocked check here safely as IO completion can only
* extend EOF. Truncate is locked out at this point, so the EOF can
* not move backwards, only forwards. Hence we only need to take the
* slow path and spin locks when we are at or beyond the current EOF.
*/
if (iocb->ki_pos <= i_size_read(inode))
goto out;
spin_lock(&ip->i_flags_lock);
isize = i_size_read(inode);
if (iocb->ki_pos > isize) {
@ -426,7 +435,7 @@ restart:
drained_dio = true;
goto restart;
}
trace_xfs_zero_eof(ip, isize, iocb->ki_pos - isize);
error = iomap_zero_range(inode, isize, iocb->ki_pos - isize,
NULL, &xfs_buffered_write_iomap_ops);
@ -435,6 +444,7 @@ restart:
} else
spin_unlock(&ip->i_flags_lock);
out:
return file_modified(file);
}
@ -500,7 +510,17 @@ xfs_dio_write_end_io(
* other IO completions here to update the EOF. Failing to serialise
* here can result in EOF moving backwards and Bad Things Happen when
* that occurs.
*
* As IO completion only ever extends EOF, we can do an unlocked check
* here to avoid taking the spinlock. If we land within the current EOF,
* then we do not need to do an extending update at all, and we don't
* need to take the lock to check this. If we race with an update moving
* EOF, then we'll either still be beyond EOF and need to take the lock,
* or we'll be within EOF and we don't need to take it at all.
*/
if (offset + size <= i_size_read(inode))
goto out;
spin_lock(&ip->i_flags_lock);
if (offset + size > i_size_read(inode)) {
i_size_write(inode, offset + size);
@ -749,18 +769,18 @@ write_retry:
*/
if (ret == -EDQUOT && !cleared_space) {
xfs_iunlock(ip, iolock);
xfs_blockgc_free_quota(ip, XFS_EOF_FLAGS_SYNC);
xfs_blockgc_free_quota(ip, XFS_ICWALK_FLAG_SYNC);
cleared_space = true;
goto write_retry;
} else if (ret == -ENOSPC && !cleared_space) {
struct xfs_eofblocks eofb = {0};
struct xfs_icwalk icw = {0};
cleared_space = true;
xfs_flush_inodes(ip->i_mount);
xfs_iunlock(ip, iolock);
eofb.eof_flags = XFS_EOF_FLAGS_SYNC;
xfs_blockgc_free_space(ip->i_mount, &eofb);
icw.icw_flags = XFS_ICWALK_FLAG_SYNC;
xfs_blockgc_free_space(ip->i_mount, &icw);
goto write_retry;
}

2
fs/xfs/xfs_filestream.c
View File

@ -9,13 +9,13 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
#include "xfs_alloc.h"
#include "xfs_mru_cache.h"
#include "xfs_trace.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
#include "xfs_trans.h"
#include "xfs_filestream.h"

80
fs/xfs/xfs_fsmap.c
View File

@ -24,6 +24,7 @@
#include "xfs_refcount_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_rtalloc.h"
#include "xfs_ag.h"
/* Convert an xfs_fsmap to an fsmap. */
static void
@ -157,10 +158,10 @@ struct xfs_getfsmap_info {
struct xfs_fsmap_head *head;
struct fsmap *fsmap_recs; /* mapping records */
struct xfs_buf *agf_bp; /* AGF, for refcount queries */
struct xfs_perag *pag; /* AG info, if applicable */
xfs_daddr_t next_daddr; /* next daddr we expect */
u64 missing_owner; /* owner of holes */
u32 dev; /* device id */
xfs_agnumber_t agno; /* AG number, if applicable */
struct xfs_rmap_irec low; /* low rmap key */
struct xfs_rmap_irec high; /* high rmap key */
bool last; /* last extent? */
@ -203,14 +204,13 @@ xfs_getfsmap_is_shared(
*stat = false;
if (!xfs_sb_version_hasreflink(&mp->m_sb))
return 0;
/* rt files will have agno set to NULLAGNUMBER */
if (info->agno == NULLAGNUMBER)
/* rt files will have no perag structure */
if (!info->pag)
return 0;
/* Are there any shared blocks here? */
flen = 0;
cur = xfs_refcountbt_init_cursor(mp, tp, info->agf_bp,
info->agno);
cur = xfs_refcountbt_init_cursor(mp, tp, info->agf_bp, info->pag);
error = xfs_refcount_find_shared(cur, rec->rm_startblock,
rec->rm_blockcount, &fbno, &flen, false);
@ -311,7 +311,8 @@ xfs_getfsmap_helper(
if (info->head->fmh_entries >= info->head->fmh_count)
return -ECANCELED;
trace_xfs_fsmap_mapping(mp, info->dev, info->agno, rec);
trace_xfs_fsmap_mapping(mp, info->dev,
info->pag ? info->pag->pag_agno : NULLAGNUMBER, rec);
fmr.fmr_device = info->dev;
fmr.fmr_physical = rec_daddr;
@ -354,7 +355,7 @@ xfs_getfsmap_datadev_helper(
xfs_fsblock_t fsb;
xfs_daddr_t rec_daddr;
fsb = XFS_AGB_TO_FSB(mp, cur->bc_ag.agno, rec->rm_startblock);
fsb = XFS_AGB_TO_FSB(mp, cur->bc_ag.pag->pag_agno, rec->rm_startblock);
rec_daddr = XFS_FSB_TO_DADDR(mp, fsb);
return xfs_getfsmap_helper(cur->bc_tp, info, rec, rec_daddr);
@ -372,7 +373,7 @@ xfs_getfsmap_datadev_bnobt_helper(
struct xfs_rmap_irec irec;
xfs_daddr_t rec_daddr;
rec_daddr = XFS_AGB_TO_DADDR(mp, cur->bc_ag.agno,
rec_daddr = XFS_AGB_TO_DADDR(mp, cur->bc_ag.pag->pag_agno,
rec->ar_startblock);
irec.rm_startblock = rec->ar_startblock;
@ -429,8 +430,8 @@ xfs_getfsmap_logdev(
info->high.rm_flags = XFS_RMAP_KEY_FLAGS | XFS_RMAP_REC_FLAGS;
info->missing_owner = XFS_FMR_OWN_FREE;
trace_xfs_fsmap_low_key(mp, info->dev, info->agno, &info->low);
trace_xfs_fsmap_high_key(mp, info->dev, info->agno, &info->high);
trace_xfs_fsmap_low_key(mp, info->dev, NULLAGNUMBER, &info->low);
trace_xfs_fsmap_high_key(mp, info->dev, NULLAGNUMBER, &info->high);
if (keys[0].fmr_physical > 0)
return 0;
@ -508,8 +509,8 @@ __xfs_getfsmap_rtdev(
info->high.rm_blockcount = 0;
xfs_getfsmap_set_irec_flags(&info->high, &keys[1]);
trace_xfs_fsmap_low_key(mp, info->dev, info->agno, &info->low);
trace_xfs_fsmap_high_key(mp, info->dev, info->agno, &info->high);
trace_xfs_fsmap_low_key(mp, info->dev, NULLAGNUMBER, &info->low);
trace_xfs_fsmap_high_key(mp, info->dev, NULLAGNUMBER, &info->high);
return query_fn(tp, info);
}
@ -572,6 +573,7 @@ __xfs_getfsmap_datadev(
void *priv)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_perag *pag;
struct xfs_btree_cur *bt_cur = NULL;
xfs_fsblock_t start_fsb;
xfs_fsblock_t end_fsb;
@ -610,20 +612,20 @@ __xfs_getfsmap_datadev(
start_ag = XFS_FSB_TO_AGNO(mp, start_fsb);
end_ag = XFS_FSB_TO_AGNO(mp, end_fsb);
/* Query each AG */
for (info->agno = start_ag; info->agno <= end_ag; info->agno++) {
for_each_perag_range(mp, start_ag, end_ag, pag) {
/*
* Set the AG high key from the fsmap high key if this
* is the last AG that we're querying.
*/
if (info->agno == end_ag) {
info->pag = pag;
if (pag->pag_agno == end_ag) {
info->high.rm_startblock = XFS_FSB_TO_AGBNO(mp,
end_fsb);
info->high.rm_offset = XFS_BB_TO_FSBT(mp,
keys[1].fmr_offset);
error = xfs_fsmap_owner_to_rmap(&info->high, &keys[1]);
if (error)
goto err;
break;
xfs_getfsmap_set_irec_flags(&info->high, &keys[1]);
}
@ -634,38 +636,45 @@ __xfs_getfsmap_datadev(
info->agf_bp = NULL;
}
error = xfs_alloc_read_agf(mp, tp, info->agno, 0,
error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0,
&info->agf_bp);
if (error)
goto err;
break;
trace_xfs_fsmap_low_key(mp, info->dev, info->agno, &info->low);
trace_xfs_fsmap_high_key(mp, info->dev, info->agno,
trace_xfs_fsmap_low_key(mp, info->dev, pag->pag_agno,
&info->low);
trace_xfs_fsmap_high_key(mp, info->dev, pag->pag_agno,
&info->high);
error = query_fn(tp, info, &bt_cur, priv);
if (error)
goto err;
break;
/*
* Set the AG low key to the start of the AG prior to
* moving on to the next AG.
*/
if (info->agno == start_ag) {
if (pag->pag_agno == start_ag) {
info->low.rm_startblock = 0;
info->low.rm_owner = 0;
info->low.rm_offset = 0;
info->low.rm_flags = 0;
}
/*
* If this is the last AG, report any gap at the end of it
* before we drop the reference to the perag when the loop
* terminates.
*/
if (pag->pag_agno == end_ag) {
info->last = true;
error = query_fn(tp, info, &bt_cur, priv);
if (error)
break;
}
info->pag = NULL;
}
/* Report any gap at the end of the AG */
info->last = true;
error = query_fn(tp, info, &bt_cur, priv);
if (error)
goto err;
err:
if (bt_cur)
xfs_btree_del_cursor(bt_cur, error < 0 ? XFS_BTREE_ERROR :
XFS_BTREE_NOERROR);
@ -673,6 +682,13 @@ err:
xfs_trans_brelse(tp, info->agf_bp);
info->agf_bp = NULL;
}
if (info->pag) {
xfs_perag_put(info->pag);
info->pag = NULL;
} else if (pag) {
/* loop termination case */
xfs_perag_put(pag);
}
return error;
}
@ -691,7 +707,7 @@ xfs_getfsmap_datadev_rmapbt_query(
/* Allocate cursor for this AG and query_range it. */
*curpp = xfs_rmapbt_init_cursor(tp->t_mountp, tp, info->agf_bp,
info->agno);
info->pag);
return xfs_rmap_query_range(*curpp, &info->low, &info->high,
xfs_getfsmap_datadev_helper, info);
}
@ -724,7 +740,7 @@ xfs_getfsmap_datadev_bnobt_query(
/* Allocate cursor for this AG and query_range it. */
*curpp = xfs_allocbt_init_cursor(tp->t_mountp, tp, info->agf_bp,
info->agno, XFS_BTNUM_BNO);
info->pag, XFS_BTNUM_BNO);
key->ar_startblock = info->low.rm_startblock;
key[1].ar_startblock = info->high.rm_startblock;
return xfs_alloc_query_range(*curpp, key, &key[1],
@ -937,7 +953,7 @@ xfs_getfsmap(
info.dev = handlers[i].dev;
info.last = false;
info.agno = NULLAGNUMBER;
info.pag = NULL;
error = handlers[i].fn(tp, dkeys, &info);
if (error)
break;

24
fs/xfs/xfs_fsops.c
View File

@ -538,25 +538,25 @@ xfs_do_force_shutdown(
if (flags & SHUTDOWN_FORCE_UMOUNT) {
xfs_alert(mp,
"User initiated shutdown received. Shutting down filesystem");
"User initiated shutdown (0x%x) received. Shutting down filesystem",
flags);
return;
}
xfs_notice(mp,
"%s(0x%x) called from line %d of file %s. Return address = "PTR_FMT,
__func__, flags, lnnum, fname, __return_address);
if (flags & SHUTDOWN_CORRUPT_INCORE) {
xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT,
"Corruption of in-memory data detected. Shutting down filesystem");
"Corruption of in-memory data (0x%x) detected at %pS (%s:%d). Shutting down filesystem",
flags, __return_address, fname, lnnum);
if (XFS_ERRLEVEL_HIGH <= xfs_error_level)
xfs_stack_trace();
} else if (logerror) {
xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
"Log I/O Error Detected. Shutting down filesystem");
"Log I/O error (0x%x) detected at %pS (%s:%d). Shutting down filesystem",
flags, __return_address, fname, lnnum);
} else {
xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
"I/O Error Detected. Shutting down filesystem");
"I/O error (0x%x) detected at %pS (%s:%d). Shutting down filesystem",
flags, __return_address, fname, lnnum);
}
xfs_alert(mp,
@ -576,10 +576,8 @@ xfs_fs_reserve_ag_blocks(
int err2;
mp->m_finobt_nores = false;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
pag = xfs_perag_get(mp, agno);
for_each_perag(mp, agno, pag) {
err2 = xfs_ag_resv_init(pag, NULL);
xfs_perag_put(pag);
if (err2 && !error)
error = err2;
}
@ -605,10 +603,8 @@ xfs_fs_unreserve_ag_blocks(
int error = 0;
int err2;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
pag = xfs_perag_get(mp, agno);
for_each_perag(mp, agno, pag) {
err2 = xfs_ag_resv_free(pag);
xfs_perag_put(pag);
if (err2 && !error)
error = err2;
}

15
fs/xfs/xfs_health.c
View File

@ -9,11 +9,11 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_trace.h"
#include "xfs_health.h"
#include "xfs_ag.h"
/*
* Warn about metadata corruption that we detected but haven't fixed, and
@ -34,14 +34,12 @@ xfs_health_unmount(
return;
/* Measure AG corruption levels. */
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
pag = xfs_perag_get(mp, agno);
for_each_perag(mp, agno, pag) {
xfs_ag_measure_sickness(pag, &sick, &checked);
if (sick) {
trace_xfs_ag_unfixed_corruption(mp, agno, sick);
warn = true;
}
xfs_perag_put(pag);
}
/* Measure realtime volume corruption levels. */
@ -231,6 +229,15 @@ xfs_inode_mark_sick(
ip->i_sick |= mask;
ip->i_checked |= mask;
spin_unlock(&ip->i_flags_lock);
/*
* Keep this inode around so we don't lose the sickness report. Scrub
* grabs inodes with DONTCACHE assuming that most inode are ok, which
* is not the case here.
*/
spin_lock(&VFS_I(ip)->i_lock);
VFS_I(ip)->i_state &= ~I_DONTCACHE;
spin_unlock(&VFS_I(ip)->i_lock);
}
/* Mark parts of an inode healed. */

1184
fs/xfs/xfs_icache.c
View File

File diff suppressed because it is too large Load Diff

58
fs/xfs/xfs_icache.h
View File

@ -9,22 +9,27 @@
struct xfs_mount;
struct xfs_perag;
struct xfs_eofblocks {
__u32 eof_flags;
kuid_t eof_uid;
kgid_t eof_gid;
prid_t eof_prid;
__u64 eof_min_file_size;
struct xfs_icwalk {
__u32 icw_flags;
kuid_t icw_uid;
kgid_t icw_gid;
prid_t icw_prid;
__u64 icw_min_file_size;
long icw_scan_limit;
};
/*
* tags for inode radix tree
*/
#define XFS_ICI_NO_TAG (-1) /* special flag for an untagged lookup
in xfs_inode_walk */
#define XFS_ICI_RECLAIM_TAG 0 /* inode is to be reclaimed */
/* Inode has speculative preallocations (posteof or cow) to clean. */
#define XFS_ICI_BLOCKGC_TAG 1
/* Flags that reflect xfs_fs_eofblocks functionality. */
#define XFS_ICWALK_FLAG_SYNC (1U << 0) /* sync/wait mode scan */
#define XFS_ICWALK_FLAG_UID (1U << 1) /* filter by uid */
#define XFS_ICWALK_FLAG_GID (1U << 2) /* filter by gid */
#define XFS_ICWALK_FLAG_PRID (1U << 3) /* filter by project id */
#define XFS_ICWALK_FLAG_MINFILESIZE (1U << 4) /* filter by min file size */
#define XFS_ICWALK_FLAGS_VALID (XFS_ICWALK_FLAG_SYNC | \
XFS_ICWALK_FLAG_UID | \
XFS_ICWALK_FLAG_GID | \
XFS_ICWALK_FLAG_PRID | \
XFS_ICWALK_FLAG_MINFILESIZE)
/*
* Flags for xfs_iget()
@ -34,11 +39,6 @@ struct xfs_eofblocks {
#define XFS_IGET_DONTCACHE 0x4
#define XFS_IGET_INCORE 0x8 /* don't read from disk or reinit */
/*
* flags for AG inode iterator
*/
#define XFS_INODE_WALK_INEW_WAIT 0x1 /* wait on new inodes */
int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
uint flags, uint lock_flags, xfs_inode_t **ipp);
@ -49,16 +49,16 @@ void xfs_inode_free(struct xfs_inode *ip);
void xfs_reclaim_worker(struct work_struct *work);
void xfs_reclaim_inodes(struct xfs_mount *mp);
int xfs_reclaim_inodes_count(struct xfs_mount *mp);
long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
long xfs_reclaim_inodes_count(struct xfs_mount *mp);
long xfs_reclaim_inodes_nr(struct xfs_mount *mp, unsigned long nr_to_scan);
void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
void xfs_inode_mark_reclaimable(struct xfs_inode *ip);
int xfs_blockgc_free_dquots(struct xfs_mount *mp, struct xfs_dquot *udqp,
struct xfs_dquot *gdqp, struct xfs_dquot *pdqp,
unsigned int eof_flags);
int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int eof_flags);
int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_eofblocks *eofb);
unsigned int iwalk_flags);
int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int iwalk_flags);
int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_icwalk *icm);
void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
@ -68,9 +68,11 @@ void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
void xfs_blockgc_worker(struct work_struct *work);
int xfs_inode_walk(struct xfs_mount *mp, int iter_flags,
int (*execute)(struct xfs_inode *ip, void *args),
void *args, int tag);
#ifdef CONFIG_XFS_QUOTA
int xfs_dqrele_all_inodes(struct xfs_mount *mp, unsigned int qflags);
#else
# define xfs_dqrele_all_inodes(mp, qflags) (0)
#endif
int xfs_icache_inode_is_allocated(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_ino_t ino, bool *inuse);

234
fs/xfs/xfs_inode.c
View File

@ -11,7 +11,6 @@
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_defer.h"
#include "xfs_inode.h"
@ -35,6 +34,7 @@
#include "xfs_log.h"
#include "xfs_bmap_btree.h"
#include "xfs_reflink.h"
#include "xfs_ag.h"
kmem_zone_t *xfs_inode_zone;
@ -45,7 +45,8 @@ kmem_zone_t *xfs_inode_zone;
#define XFS_ITRUNC_MAX_EXTENTS 2
STATIC int xfs_iunlink(struct xfs_trans *, struct xfs_inode *);
STATIC int xfs_iunlink_remove(struct xfs_trans *, struct xfs_inode *);
STATIC int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
struct xfs_inode *);
/*
* helper function to extract extent size hint from inode
@ -778,7 +779,7 @@ xfs_inode_inherit_flags2(
* Initialise a newly allocated inode and return the in-core inode to the
* caller locked exclusively.
*/
static int
int
xfs_init_new_inode(
struct user_namespace *mnt_userns,
struct xfs_trans *tp,
@ -914,57 +915,6 @@ xfs_init_new_inode(
return 0;
}
/*
* Allocates a new inode from disk and return a pointer to the incore copy. This
* routine will internally commit the current transaction and allocate a new one
* if we needed to allocate more on-disk free inodes to perform the requested
* operation.
*
* If we are allocating quota inodes, we do not have a parent inode to attach to
* or associate with (i.e. dp == NULL) because they are not linked into the
* directory structure - they are attached directly to the superblock - and so
* have no parent.
*/
int
xfs_dir_ialloc(
struct user_namespace *mnt_userns,
struct xfs_trans **tpp,
struct xfs_inode *dp,
umode_t mode,
xfs_nlink_t nlink,
dev_t rdev,
prid_t prid,
bool init_xattrs,
struct xfs_inode **ipp)
{
struct xfs_buf *agibp;
xfs_ino_t parent_ino = dp ? dp->i_ino : 0;
xfs_ino_t ino;
int error;
ASSERT((*tpp)->t_flags & XFS_TRANS_PERM_LOG_RES);
/*
* Call the space management code to pick the on-disk inode to be
* allocated.
*/
error = xfs_dialloc_select_ag(tpp, parent_ino, mode, &agibp);
if (error)
return error;
if (!agibp)
return -ENOSPC;
/* Allocate an inode from the selected AG */
error = xfs_dialloc_ag(*tpp, agibp, parent_ino, &ino);
if (error)
return error;
ASSERT(ino != NULLFSINO);
return xfs_init_new_inode(mnt_userns, *tpp, dp, ino, mode, nlink, rdev,
prid, init_xattrs, ipp);
}
/*
* Decrement the link count on an inode & log the change. If this causes the
* link count to go to zero, move the inode to AGI unlinked list so that it can
@ -1022,6 +972,7 @@ xfs_create(
struct xfs_dquot *pdqp = NULL;
struct xfs_trans_res *tres;
uint resblks;
xfs_ino_t ino;
trace_xfs_create(dp, name);
@ -1078,14 +1029,16 @@ xfs_create(
* entry pointing to them, but a directory also the "." entry
* pointing to itself.
*/
error = xfs_dir_ialloc(mnt_userns, &tp, dp, mode, is_dir ? 2 : 1, rdev,
prid, init_xattrs, &ip);
error = xfs_dialloc(&tp, dp->i_ino, mode, &ino);
if (!error)
error = xfs_init_new_inode(mnt_userns, tp, dp, ino, mode,
is_dir ? 2 : 1, rdev, prid, init_xattrs, &ip);
if (error)
goto out_trans_cancel;
/*
* Now we join the directory inode to the transaction. We do not do it
* earlier because xfs_dir_ialloc might commit the previous transaction
* earlier because xfs_dialloc might commit the previous transaction
* (and release all the locks). An error from here on will result in
* the transaction cancel unlocking dp so don't do it explicitly in the
* error path.
@ -1175,6 +1128,7 @@ xfs_create_tmpfile(
struct xfs_dquot *pdqp = NULL;
struct xfs_trans_res *tres;
uint resblks;
xfs_ino_t ino;
if (XFS_FORCED_SHUTDOWN(mp))
return -EIO;
@ -1199,8 +1153,10 @@ xfs_create_tmpfile(
if (error)
goto out_release_dquots;
error = xfs_dir_ialloc(mnt_userns, &tp, dp, mode, 0, 0, prid,
false, &ip);
error = xfs_dialloc(&tp, dp->i_ino, mode, &ino);
if (!error)
error = xfs_init_new_inode(mnt_userns, tp, dp, ino, mode,
0, 0, prid, false, &ip);
if (error)
goto out_trans_cancel;
@ -1315,7 +1271,11 @@ xfs_link(
* Handle initial link state of O_TMPFILE inode
*/
if (VFS_I(sip)->i_nlink == 0) {
error = xfs_iunlink_remove(tp, sip);
struct xfs_perag *pag;
pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, sip->i_ino));
error = xfs_iunlink_remove(tp, pag, sip);
xfs_perag_put(pag);
if (error)
goto error_return;
}
@ -1716,7 +1676,7 @@ xfs_inactive(
*/
if (VFS_I(ip)->i_mode == 0) {
ASSERT(ip->i_df.if_broot_bytes == 0);
return;
goto out;
}
mp = ip->i_mount;
@ -1724,11 +1684,11 @@ xfs_inactive(
/* If this is a read-only mount, don't do this (would generate I/O) */
if (mp->m_flags & XFS_MOUNT_RDONLY)
return;
goto out;
/* Metadata inodes require explicit resource cleanup. */
if (xfs_is_metadata_inode(ip))
return;
goto out;
/* Try to clean out the cow blocks if there are any. */
if (xfs_inode_has_cow_data(ip))
@ -1747,7 +1707,7 @@ xfs_inactive(
if (xfs_can_free_eofblocks(ip, true))
xfs_free_eofblocks(ip);
return;
goto out;
}
if (S_ISREG(VFS_I(ip)->i_mode) &&
@ -1757,14 +1717,14 @@ xfs_inactive(
error = xfs_qm_dqattach(ip);
if (error)
return;
goto out;
if (S_ISLNK(VFS_I(ip)->i_mode))
error = xfs_inactive_symlink(ip);
else if (truncate)
error = xfs_inactive_truncate(ip);
if (error)
return;
goto out;
/*
* If there are attributes associated with the file then blow them away
@ -1774,7 +1734,7 @@ xfs_inactive(
if (XFS_IFORK_Q(ip)) {
error = xfs_attr_inactive(ip);
if (error)
return;
goto out;
}
ASSERT(!ip->i_afp);
@ -1783,12 +1743,12 @@ xfs_inactive(
/*
* Free the inode.
*/
error = xfs_inactive_ifree(ip);
if (error)
return;
xfs_inactive_ifree(ip);
out:
/*
* Release the dquots held by inode, if any.
* We're done making metadata updates for this inode, so we can release
* the attached dquots.
*/
xfs_qm_dqdetach(ip);
}
@ -2008,7 +1968,7 @@ xfs_iunlink_destroy(
STATIC int
xfs_iunlink_update_bucket(
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
struct xfs_buf *agibp,
unsigned int bucket_index,
xfs_agino_t new_agino)
@ -2017,10 +1977,10 @@ xfs_iunlink_update_bucket(
xfs_agino_t old_value;
int offset;
ASSERT(xfs_verify_agino_or_null(tp->t_mountp, agno, new_agino));
ASSERT(xfs_verify_agino_or_null(tp->t_mountp, pag->pag_agno, new_agino));
old_value = be32_to_cpu(agi->agi_unlinked[bucket_index]);
trace_xfs_iunlink_update_bucket(tp->t_mountp, agno, bucket_index,
trace_xfs_iunlink_update_bucket(tp->t_mountp, pag->pag_agno, bucket_index,
old_value, new_agino);
/*
@ -2044,7 +2004,7 @@ xfs_iunlink_update_bucket(
STATIC void
xfs_iunlink_update_dinode(
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agino_t agino,
struct xfs_buf *ibp,
struct xfs_dinode *dip,
@ -2054,9 +2014,9 @@ xfs_iunlink_update_dinode(
struct xfs_mount *mp = tp->t_mountp;
int offset;
ASSERT(xfs_verify_agino_or_null(mp, agno, next_agino));
ASSERT(xfs_verify_agino_or_null(mp, pag->pag_agno, next_agino));
trace_xfs_iunlink_update_dinode(mp, agno, agino,
trace_xfs_iunlink_update_dinode(mp, pag->pag_agno, agino,
be32_to_cpu(dip->di_next_unlinked), next_agino);
dip->di_next_unlinked = cpu_to_be32(next_agino);
@ -2074,7 +2034,7 @@ STATIC int
xfs_iunlink_update_inode(
struct xfs_trans *tp,
struct xfs_inode *ip,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agino_t next_agino,
xfs_agino_t *old_next_agino)
{
@ -2084,7 +2044,7 @@ xfs_iunlink_update_inode(
xfs_agino_t old_value;
int error;
ASSERT(xfs_verify_agino_or_null(mp, agno, next_agino));
ASSERT(xfs_verify_agino_or_null(mp, pag->pag_agno, next_agino));
error = xfs_imap_to_bp(mp, tp, &ip->i_imap, &ibp);
if (error)
@ -2093,7 +2053,7 @@ xfs_iunlink_update_inode(
/* Make sure the old pointer isn't garbage. */
old_value = be32_to_cpu(dip->di_next_unlinked);
if (!xfs_verify_agino_or_null(mp, agno, old_value)) {
if (!xfs_verify_agino_or_null(mp, pag->pag_agno, old_value)) {
xfs_inode_verifier_error(ip, -EFSCORRUPTED, __func__, dip,
sizeof(*dip), __this_address);
error = -EFSCORRUPTED;
@ -2116,7 +2076,7 @@ xfs_iunlink_update_inode(
}
/* Ok, update the new pointer. */
xfs_iunlink_update_dinode(tp, agno, XFS_INO_TO_AGINO(mp, ip->i_ino),
xfs_iunlink_update_dinode(tp, pag, XFS_INO_TO_AGINO(mp, ip->i_ino),
ibp, dip, &ip->i_imap, next_agino);
return 0;
out:
@ -2137,10 +2097,10 @@ xfs_iunlink(
struct xfs_inode *ip)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_perag *pag;
struct xfs_agi *agi;
struct xfs_buf *agibp;
xfs_agino_t next_agino;
xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, ip->i_ino);
xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
short bucket_index = agino % XFS_AGI_UNLINKED_BUCKETS;
int error;
@ -2149,10 +2109,12 @@ xfs_iunlink(
ASSERT(VFS_I(ip)->i_mode != 0);
trace_xfs_iunlink(ip);
pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ip->i_ino));
/* Get the agi buffer first. It ensures lock ordering on the list. */
error = xfs_read_agi(mp, tp, agno, &agibp);
error = xfs_read_agi(mp, tp, pag->pag_agno, &agibp);
if (error)
return error;
goto out;
agi = agibp->b_addr;
/*
@ -2162,9 +2124,10 @@ xfs_iunlink(
*/
next_agino = be32_to_cpu(agi->agi_unlinked[bucket_index]);
if (next_agino == agino ||
!xfs_verify_agino_or_null(mp, agno, next_agino)) {
!xfs_verify_agino_or_null(mp, pag->pag_agno, next_agino)) {
xfs_buf_mark_corrupt(agibp);
return -EFSCORRUPTED;
error = -EFSCORRUPTED;
goto out;
}
if (next_agino != NULLAGINO) {
@ -2174,23 +2137,26 @@ xfs_iunlink(
* There is already another inode in the bucket, so point this
* inode to the current head of the list.
*/
error = xfs_iunlink_update_inode(tp, ip, agno, next_agino,
error = xfs_iunlink_update_inode(tp, ip, pag, next_agino,
&old_agino);
if (error)
return error;
goto out;
ASSERT(old_agino == NULLAGINO);
/*
* agino has been unlinked, add a backref from the next inode
* back to agino.
*/
error = xfs_iunlink_add_backref(agibp->b_pag, agino, next_agino);
error = xfs_iunlink_add_backref(pag, agino, next_agino);
if (error)
return error;
goto out;
}
/* Point the head of the list to point to this inode. */
return xfs_iunlink_update_bucket(tp, agno, agibp, bucket_index, agino);
error = xfs_iunlink_update_bucket(tp, pag, agibp, bucket_index, agino);
out:
xfs_perag_put(pag);
return error;
}
/* Return the imap, dinode pointer, and buffer for an inode. */
@ -2238,14 +2204,13 @@ xfs_iunlink_map_ino(
STATIC int
xfs_iunlink_map_prev(
struct xfs_trans *tp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_agino_t head_agino,
xfs_agino_t target_agino,
xfs_agino_t *agino,
struct xfs_imap *imap,
struct xfs_dinode **dipp,
struct xfs_buf **bpp,
struct xfs_perag *pag)
struct xfs_buf **bpp)
{
struct xfs_mount *mp = tp->t_mountp;
xfs_agino_t next_agino;
@ -2257,7 +2222,8 @@ xfs_iunlink_map_prev(
/* See if our backref cache can find it faster. */
*agino = xfs_iunlink_lookup_backref(pag, target_agino);
if (*agino != NULLAGINO) {
error = xfs_iunlink_map_ino(tp, agno, *agino, imap, dipp, bpp);
error = xfs_iunlink_map_ino(tp, pag->pag_agno, *agino, imap,
dipp, bpp);
if (error)
return error;
@ -2273,7 +2239,7 @@ xfs_iunlink_map_prev(
WARN_ON_ONCE(1);
}
trace_xfs_iunlink_map_prev_fallback(mp, agno);
trace_xfs_iunlink_map_prev_fallback(mp, pag->pag_agno);
/* Otherwise, walk the entire bucket until we find it. */
next_agino = head_agino;
@ -2284,8 +2250,8 @@ xfs_iunlink_map_prev(
xfs_trans_brelse(tp, *bpp);
*agino = next_agino;
error = xfs_iunlink_map_ino(tp, agno, next_agino, imap, dipp,
bpp);
error = xfs_iunlink_map_ino(tp, pag->pag_agno, next_agino, imap,
dipp, bpp);
if (error)
return error;
@ -2294,7 +2260,7 @@ xfs_iunlink_map_prev(
* Make sure this pointer is valid and isn't an obvious
* infinite loop.
*/
if (!xfs_verify_agino(mp, agno, unlinked_agino) ||
if (!xfs_verify_agino(mp, pag->pag_agno, unlinked_agino) ||
next_agino == unlinked_agino) {
XFS_CORRUPTION_ERROR(__func__,
XFS_ERRLEVEL_LOW, mp,
@ -2314,6 +2280,7 @@ xfs_iunlink_map_prev(
STATIC int
xfs_iunlink_remove(
struct xfs_trans *tp,
struct xfs_perag *pag,
struct xfs_inode *ip)
{
struct xfs_mount *mp = tp->t_mountp;
@ -2321,7 +2288,6 @@ xfs_iunlink_remove(
struct xfs_buf *agibp;
struct xfs_buf *last_ibp;
struct xfs_dinode *last_dip = NULL;
xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, ip->i_ino);
xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
xfs_agino_t next_agino;
xfs_agino_t head_agino;
@ -2331,7 +2297,7 @@ xfs_iunlink_remove(
trace_xfs_iunlink_remove(ip);
/* Get the agi buffer first. It ensures lock ordering on the list. */
error = xfs_read_agi(mp, tp, agno, &agibp);
error = xfs_read_agi(mp, tp, pag->pag_agno, &agibp);
if (error)
return error;
agi = agibp->b_addr;
@ -2341,7 +2307,7 @@ xfs_iunlink_remove(
* go on. Make sure the head pointer isn't garbage.
*/
head_agino = be32_to_cpu(agi->agi_unlinked[bucket_index]);
if (!xfs_verify_agino(mp, agno, head_agino)) {
if (!xfs_verify_agino(mp, pag->pag_agno, head_agino)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
agi, sizeof(*agi));
return -EFSCORRUPTED;
@ -2352,7 +2318,7 @@ xfs_iunlink_remove(
* the old pointer value so that we can update whatever was previous
* to us in the list to point to whatever was next in the list.
*/
error = xfs_iunlink_update_inode(tp, ip, agno, NULLAGINO, &next_agino);
error = xfs_iunlink_update_inode(tp, ip, pag, NULLAGINO, &next_agino);
if (error)
return error;
@ -2364,8 +2330,7 @@ xfs_iunlink_remove(
* this inode's backref to point from the next inode.
*/
if (next_agino != NULLAGINO) {
error = xfs_iunlink_change_backref(agibp->b_pag, next_agino,
NULLAGINO);
error = xfs_iunlink_change_backref(pag, next_agino, NULLAGINO);
if (error)
return error;
}
@ -2375,14 +2340,13 @@ xfs_iunlink_remove(
xfs_agino_t prev_agino;
/* We need to search the list for the inode being freed. */
error = xfs_iunlink_map_prev(tp, agno, head_agino, agino,
&prev_agino, &imap, &last_dip, &last_ibp,
agibp->b_pag);
error = xfs_iunlink_map_prev(tp, pag, head_agino, agino,
&prev_agino, &imap, &last_dip, &last_ibp);
if (error)
return error;
/* Point the previous inode on the list to the next inode. */
xfs_iunlink_update_dinode(tp, agno, prev_agino, last_ibp,
xfs_iunlink_update_dinode(tp, pag, prev_agino, last_ibp,
last_dip, &imap, next_agino);
/*
@ -2398,7 +2362,7 @@ xfs_iunlink_remove(
}
/* Point the head of the list to the next unlinked inode. */
return xfs_iunlink_update_bucket(tp, agno, agibp, bucket_index,
return xfs_iunlink_update_bucket(tp, pag, agibp, bucket_index,
next_agino);
}
@ -2409,12 +2373,11 @@ xfs_iunlink_remove(
*/
static void
xfs_ifree_mark_inode_stale(
struct xfs_buf *bp,
struct xfs_perag *pag,
struct xfs_inode *free_ip,
xfs_ino_t inum)
{
struct xfs_mount *mp = bp->b_mount;
struct xfs_perag *pag = bp->b_pag;
struct xfs_mount *mp = pag->pag_mount;
struct xfs_inode_log_item *iip;
struct xfs_inode *ip;
@ -2504,10 +2467,11 @@ out_iflags_unlock:
* inodes that are in memory - they all must be marked stale and attached to
* the cluster buffer.
*/
STATIC int
static int
xfs_ifree_cluster(
struct xfs_inode *free_ip,
struct xfs_trans *tp,
struct xfs_perag *pag,
struct xfs_inode *free_ip,
struct xfs_icluster *xic)
{
struct xfs_mount *mp = free_ip->i_mount;
@ -2569,7 +2533,7 @@ xfs_ifree_cluster(
* already marked XFS_ISTALE.
*/
for (i = 0; i < igeo->inodes_per_cluster; i++)
xfs_ifree_mark_inode_stale(bp, free_ip, inum + i);
xfs_ifree_mark_inode_stale(pag, free_ip, inum + i);
xfs_trans_stale_inode_buf(tp, bp);
xfs_trans_binval(tp, bp);
@ -2592,9 +2556,11 @@ xfs_ifree(
struct xfs_trans *tp,
struct xfs_inode *ip)
{
int error;
struct xfs_mount *mp = ip->i_mount;
struct xfs_perag *pag;
struct xfs_icluster xic = { 0 };
struct xfs_inode_log_item *iip = ip->i_itemp;
int error;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(VFS_I(ip)->i_nlink == 0);
@ -2602,16 +2568,18 @@ xfs_ifree(
ASSERT(ip->i_disk_size == 0 || !S_ISREG(VFS_I(ip)->i_mode));
ASSERT(ip->i_nblocks == 0);
pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ip->i_ino));
/*
* Pull the on-disk inode from the AGI unlinked list.
*/
error = xfs_iunlink_remove(tp, ip);
error = xfs_iunlink_remove(tp, pag, ip);
if (error)
return error;
goto out;
error = xfs_difree(tp, ip->i_ino, &xic);
error = xfs_difree(tp, pag, ip->i_ino, &xic);
if (error)
return error;
goto out;
/*
* Free any local-format data sitting around before we reset the
@ -2626,7 +2594,7 @@ xfs_ifree(
VFS_I(ip)->i_mode = 0; /* mark incore inode as free */
ip->i_diflags = 0;
ip->i_diflags2 = ip->i_mount->m_ino_geo.new_diflags2;
ip->i_diflags2 = mp->m_ino_geo.new_diflags2;
ip->i_forkoff = 0; /* mark the attr fork not in use */
ip->i_df.if_format = XFS_DINODE_FMT_EXTENTS;
if (xfs_iflags_test(ip, XFS_IPRESERVE_DM_FIELDS))
@ -2645,8 +2613,9 @@ xfs_ifree(
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
if (xic.deleted)
error = xfs_ifree_cluster(ip, tp, &xic);
error = xfs_ifree_cluster(tp, pag, ip, &xic);
out:
xfs_perag_put(pag);
return error;
}
@ -2664,7 +2633,7 @@ xfs_iunpin(
trace_xfs_inode_unpin_nowait(ip, _RET_IP_);
/* Give the log a push to start the unpinning I/O */
xfs_log_force_lsn(ip->i_mount, ip->i_itemp->ili_last_lsn, 0, NULL);
xfs_log_force_seq(ip->i_mount, ip->i_itemp->ili_commit_seq, 0, NULL);
}
@ -3250,8 +3219,13 @@ xfs_rename(
* in future.
*/
if (wip) {
struct xfs_perag *pag;
ASSERT(VFS_I(wip)->i_nlink == 0);
error = xfs_iunlink_remove(tp, wip);
pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, wip->i_ino));
error = xfs_iunlink_remove(tp, pag, wip);
xfs_perag_put(pag);
if (error)
goto out_trans_cancel;
@ -3673,16 +3647,16 @@ int
xfs_log_force_inode(
struct xfs_inode *ip)
{
xfs_lsn_t lsn = 0;
xfs_csn_t seq = 0;
xfs_ilock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip))
lsn = ip->i_itemp->ili_last_lsn;
seq = ip->i_itemp->ili_commit_seq;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
if (!lsn)
if (!seq)
return 0;
return xfs_log_force_lsn(ip->i_mount, lsn, XFS_LOG_SYNC, NULL);
return xfs_log_force_seq(ip->i_mount, seq, XFS_LOG_SYNC, NULL);
}
/*

9
fs/xfs/xfs_inode.h
View File

@ -431,11 +431,10 @@ void xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
xfs_extlen_t xfs_get_cowextsz_hint(struct xfs_inode *ip);
int xfs_dir_ialloc(struct user_namespace *mnt_userns,
struct xfs_trans **tpp, struct xfs_inode *dp,
umode_t mode, xfs_nlink_t nlink, dev_t dev,
prid_t prid, bool need_xattr,
struct xfs_inode **ipp);
int xfs_init_new_inode(struct user_namespace *mnt_userns, struct xfs_trans *tp,
struct xfs_inode *pip, xfs_ino_t ino, umode_t mode,
xfs_nlink_t nlink, dev_t rdev, prid_t prid, bool init_xattrs,
struct xfs_inode **ipp);
static inline int
xfs_itruncate_extents(

18
fs/xfs/xfs_inode_item.c
View File

@ -28,6 +28,20 @@ static inline struct xfs_inode_log_item *INODE_ITEM(struct xfs_log_item *lip)
return container_of(lip, struct xfs_inode_log_item, ili_item);
}
/*
* The logged size of an inode fork is always the current size of the inode
* fork. This means that when an inode fork is relogged, the size of the logged
* region is determined by the current state, not the combination of the
* previously logged state + the current state. This is different relogging
* behaviour to most other log items which will retain the size of the
* previously logged changes when smaller regions are relogged.
*
* Hence operations that remove data from the inode fork (e.g. shortform
* dir/attr remove, extent form extent removal, etc), the size of the relogged
* inode gets -smaller- rather than stays the same size as the previously logged
* size and this can result in the committing transaction reducing the amount of
* space being consumed by the CIL.
*/
STATIC void
xfs_inode_item_data_fork_size(
struct xfs_inode_log_item *iip,
@ -629,9 +643,9 @@ xfs_inode_item_committed(
STATIC void
xfs_inode_item_committing(
struct xfs_log_item *lip,
xfs_lsn_t commit_lsn)
xfs_csn_t seq)
{
INODE_ITEM(lip)->ili_last_lsn = commit_lsn;
INODE_ITEM(lip)->ili_commit_seq = seq;
return xfs_inode_item_release(lip);
}

2
fs/xfs/xfs_inode_item.h
View File

@ -33,7 +33,7 @@ struct xfs_inode_log_item {
unsigned int ili_fields; /* fields to be logged */
unsigned int ili_fsync_fields; /* logged since last fsync */
xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
xfs_lsn_t ili_last_lsn; /* lsn at last transaction */
xfs_csn_t ili_commit_seq; /* last transaction commit */
};
static inline int xfs_inode_clean(struct xfs_inode *ip)

41
fs/xfs/xfs_ioctl.c
View File

@ -1875,7 +1875,7 @@ out:
static inline int
xfs_fs_eofblocks_from_user(
struct xfs_fs_eofblocks *src,
struct xfs_eofblocks *dst)
struct xfs_icwalk *dst)
{
if (src->eof_version != XFS_EOFBLOCKS_VERSION)
return -EINVAL;
@ -1887,21 +1887,32 @@ xfs_fs_eofblocks_from_user(
memchr_inv(src->pad64, 0, sizeof(src->pad64)))
return -EINVAL;
dst->eof_flags = src->eof_flags;
dst->eof_prid = src->eof_prid;
dst->eof_min_file_size = src->eof_min_file_size;
dst->icw_flags = 0;
if (src->eof_flags & XFS_EOF_FLAGS_SYNC)
dst->icw_flags |= XFS_ICWALK_FLAG_SYNC;
if (src->eof_flags & XFS_EOF_FLAGS_UID)
dst->icw_flags |= XFS_ICWALK_FLAG_UID;
if (src->eof_flags & XFS_EOF_FLAGS_GID)
dst->icw_flags |= XFS_ICWALK_FLAG_GID;
if (src->eof_flags & XFS_EOF_FLAGS_PRID)
dst->icw_flags |= XFS_ICWALK_FLAG_PRID;
if (src->eof_flags & XFS_EOF_FLAGS_MINFILESIZE)
dst->icw_flags |= XFS_ICWALK_FLAG_MINFILESIZE;
dst->eof_uid = INVALID_UID;
dst->icw_prid = src->eof_prid;
dst->icw_min_file_size = src->eof_min_file_size;
dst->icw_uid = INVALID_UID;
if (src->eof_flags & XFS_EOF_FLAGS_UID) {
dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
if (!uid_valid(dst->eof_uid))
dst->icw_uid = make_kuid(current_user_ns(), src->eof_uid);
if (!uid_valid(dst->icw_uid))
return -EINVAL;
}
dst->eof_gid = INVALID_GID;
dst->icw_gid = INVALID_GID;
if (src->eof_flags & XFS_EOF_FLAGS_GID) {
dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
if (!gid_valid(dst->eof_gid))
dst->icw_gid = make_kgid(current_user_ns(), src->eof_gid);
if (!gid_valid(dst->icw_gid))
return -EINVAL;
}
return 0;
@ -2164,8 +2175,8 @@ xfs_file_ioctl(
return xfs_errortag_clearall(mp);
case XFS_IOC_FREE_EOFBLOCKS: {
struct xfs_fs_eofblocks eofb;
struct xfs_eofblocks keofb;
struct xfs_fs_eofblocks eofb;
struct xfs_icwalk icw;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@ -2176,14 +2187,14 @@ xfs_file_ioctl(
if (copy_from_user(&eofb, arg, sizeof(eofb)))
return -EFAULT;
error = xfs_fs_eofblocks_from_user(&eofb, &keofb);
error = xfs_fs_eofblocks_from_user(&eofb, &icw);
if (error)
return error;
trace_xfs_ioc_free_eofblocks(mp, &keofb, _RET_IP_);
trace_xfs_ioc_free_eofblocks(mp, &icw, _RET_IP_);
sb_start_write(mp->m_super);
error = xfs_blockgc_free_space(mp, &keofb);
error = xfs_blockgc_free_space(mp, &icw);
sb_end_write(mp->m_super);
return error;
}

4
fs/xfs/xfs_iops.c
View File

@ -543,7 +543,7 @@ xfs_stat_blksize(
* always return the realtime extent size.
*/
if (XFS_IS_REALTIME_INODE(ip))
return xfs_get_extsz_hint(ip) << mp->m_sb.sb_blocklog;
return XFS_FSB_TO_B(mp, xfs_get_extsz_hint(ip));
/*
* Allow large block sizes to be reported to userspace programs if the
@ -560,7 +560,7 @@ xfs_stat_blksize(
*/
if (mp->m_flags & XFS_MOUNT_LARGEIO) {
if (mp->m_swidth)
return mp->m_swidth << mp->m_sb.sb_blocklog;
return XFS_FSB_TO_B(mp, mp->m_swidth);
if (mp->m_flags & XFS_MOUNT_ALLOCSIZE)
return 1U << mp->m_allocsize_log;
}

84
fs/xfs/xfs_iwalk.c
View File

@ -21,6 +21,7 @@
#include "xfs_health.h"
#include "xfs_trans.h"
#include "xfs_pwork.h"
#include "xfs_ag.h"
/*
* Walking Inodes in the Filesystem
@ -51,6 +52,7 @@ struct xfs_iwalk_ag {
struct xfs_mount *mp;
struct xfs_trans *tp;
struct xfs_perag *pag;
/* Where do we start the traversal? */
xfs_ino_t startino;
@ -90,7 +92,7 @@ struct xfs_iwalk_ag {
STATIC void
xfs_iwalk_ichunk_ra(
struct xfs_mount *mp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
struct xfs_inobt_rec_incore *irec)
{
struct xfs_ino_geometry *igeo = M_IGEO(mp);
@ -106,7 +108,7 @@ xfs_iwalk_ichunk_ra(
imask = xfs_inobt_maskn(i, igeo->inodes_per_cluster);
if (imask & ~irec->ir_free) {
xfs_btree_reada_bufs(mp, agno, agbno,
xfs_btree_reada_bufs(mp, pag->pag_agno, agbno,
igeo->blocks_per_cluster,
&xfs_inode_buf_ops);
}
@ -174,26 +176,25 @@ xfs_iwalk_free(
/* For each inuse inode in each cached inobt record, call our function. */
STATIC int
xfs_iwalk_ag_recs(
struct xfs_iwalk_ag *iwag)
struct xfs_iwalk_ag *iwag)
{
struct xfs_mount *mp = iwag->mp;
struct xfs_trans *tp = iwag->tp;
xfs_ino_t ino;
unsigned int i, j;
xfs_agnumber_t agno;
int error;
struct xfs_mount *mp = iwag->mp;
struct xfs_trans *tp = iwag->tp;
struct xfs_perag *pag = iwag->pag;
xfs_ino_t ino;
unsigned int i, j;
int error;
agno = XFS_INO_TO_AGNO(mp, iwag->startino);
for (i = 0; i < iwag->nr_recs; i++) {
struct xfs_inobt_rec_incore *irec = &iwag->recs[i];
trace_xfs_iwalk_ag_rec(mp, agno, irec);
trace_xfs_iwalk_ag_rec(mp, pag->pag_agno, irec);
if (xfs_pwork_want_abort(&iwag->pwork))
return 0;
if (iwag->inobt_walk_fn) {
error = iwag->inobt_walk_fn(mp, tp, agno, irec,
error = iwag->inobt_walk_fn(mp, tp, pag->pag_agno, irec,
iwag->data);
if (error)
return error;
@ -211,7 +212,8 @@ xfs_iwalk_ag_recs(
continue;
/* Otherwise call our function. */
ino = XFS_AGINO_TO_INO(mp, agno, irec->ir_startino + j);
ino = XFS_AGINO_TO_INO(mp, pag->pag_agno,
irec->ir_startino + j);
error = iwag->iwalk_fn(mp, tp, ino, iwag->data);
if (error)
return error;
@ -257,7 +259,6 @@ xfs_iwalk_del_inobt(
STATIC int
xfs_iwalk_ag_start(
struct xfs_iwalk_ag *iwag,
xfs_agnumber_t agno,
xfs_agino_t agino,
struct xfs_btree_cur **curpp,
struct xfs_buf **agi_bpp,
@ -265,12 +266,13 @@ xfs_iwalk_ag_start(
{
struct xfs_mount *mp = iwag->mp;
struct xfs_trans *tp = iwag->tp;
struct xfs_perag *pag = iwag->pag;
struct xfs_inobt_rec_incore *irec;
int error;
/* Set up a fresh cursor and empty the inobt cache. */
iwag->nr_recs = 0;
error = xfs_inobt_cur(mp, tp, agno, XFS_BTNUM_INO, curpp, agi_bpp);
error = xfs_inobt_cur(mp, tp, pag, XFS_BTNUM_INO, curpp, agi_bpp);
if (error)
return error;
@ -304,7 +306,7 @@ xfs_iwalk_ag_start(
if (XFS_IS_CORRUPT(mp, *has_more != 1))
return -EFSCORRUPTED;
iwag->lastino = XFS_AGINO_TO_INO(mp, agno,
iwag->lastino = XFS_AGINO_TO_INO(mp, pag->pag_agno,
irec->ir_startino + XFS_INODES_PER_CHUNK - 1);
/*
@ -345,7 +347,6 @@ out_advance:
STATIC int
xfs_iwalk_run_callbacks(
struct xfs_iwalk_ag *iwag,
xfs_agnumber_t agno,
struct xfs_btree_cur **curpp,
struct xfs_buf **agi_bpp,
int *has_more)
@ -376,7 +377,7 @@ xfs_iwalk_run_callbacks(
return 0;
/* ...and recreate the cursor just past where we left off. */
error = xfs_inobt_cur(mp, tp, agno, XFS_BTNUM_INO, curpp, agi_bpp);
error = xfs_inobt_cur(mp, tp, iwag->pag, XFS_BTNUM_INO, curpp, agi_bpp);
if (error)
return error;
@ -390,17 +391,17 @@ xfs_iwalk_ag(
{
struct xfs_mount *mp = iwag->mp;
struct xfs_trans *tp = iwag->tp;
struct xfs_perag *pag = iwag->pag;
struct xfs_buf *agi_bp = NULL;
struct xfs_btree_cur *cur = NULL;
xfs_agnumber_t agno;
xfs_agino_t agino;
int has_more;
int error = 0;
/* Set up our cursor at the right place in the inode btree. */
agno = XFS_INO_TO_AGNO(mp, iwag->startino);
ASSERT(pag->pag_agno == XFS_INO_TO_AGNO(mp, iwag->startino));
agino = XFS_INO_TO_AGINO(mp, iwag->startino);
error = xfs_iwalk_ag_start(iwag, agno, agino, &cur, &agi_bp, &has_more);
error = xfs_iwalk_ag_start(iwag, agino, &cur, &agi_bp, &has_more);
while (!error && has_more) {
struct xfs_inobt_rec_incore *irec;
@ -417,7 +418,7 @@ xfs_iwalk_ag(
break;
/* Make sure that we always move forward. */
rec_fsino = XFS_AGINO_TO_INO(mp, agno, irec->ir_startino);
rec_fsino = XFS_AGINO_TO_INO(mp, pag->pag_agno, irec->ir_startino);
if (iwag->lastino != NULLFSINO &&
XFS_IS_CORRUPT(mp, iwag->lastino >= rec_fsino)) {
error = -EFSCORRUPTED;
@ -438,7 +439,7 @@ xfs_iwalk_ag(
* walking the inodes.
*/
if (iwag->iwalk_fn)
xfs_iwalk_ichunk_ra(mp, agno, irec);
xfs_iwalk_ichunk_ra(mp, pag, irec);
/*
* If there's space in the buffer for more records, increment
@ -458,15 +459,14 @@ xfs_iwalk_ag(
* we would be if we had been able to increment like above.
*/
ASSERT(has_more);
error = xfs_iwalk_run_callbacks(iwag, agno, &cur, &agi_bp,
&has_more);
error = xfs_iwalk_run_callbacks(iwag, &cur, &agi_bp, &has_more);
}
if (iwag->nr_recs == 0 || error)
goto out;
/* Walk the unprocessed records in the cache. */
error = xfs_iwalk_run_callbacks(iwag, agno, &cur, &agi_bp, &has_more);
error = xfs_iwalk_run_callbacks(iwag, &cur, &agi_bp, &has_more);
out:
xfs_iwalk_del_inobt(tp, &cur, &agi_bp, error);
@ -555,6 +555,7 @@ xfs_iwalk(
.pwork = XFS_PWORK_SINGLE_THREADED,
.lastino = NULLFSINO,
};
struct xfs_perag *pag;
xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, startino);
int error;
@ -565,15 +566,19 @@ xfs_iwalk(
if (error)
return error;
for (; agno < mp->m_sb.sb_agcount; agno++) {
for_each_perag_from(mp, agno, pag) {
iwag.pag = pag;
error = xfs_iwalk_ag(&iwag);
if (error)
break;
iwag.startino = XFS_AGINO_TO_INO(mp, agno + 1, 0);
if (flags & XFS_INOBT_WALK_SAME_AG)
break;
iwag.pag = NULL;
}
if (iwag.pag)
xfs_perag_put(pag);
xfs_iwalk_free(&iwag);
return error;
}
@ -598,6 +603,7 @@ xfs_iwalk_ag_work(
error = xfs_iwalk_ag(iwag);
xfs_iwalk_free(iwag);
out:
xfs_perag_put(iwag->pag);
kmem_free(iwag);
return error;
}
@ -617,6 +623,7 @@ xfs_iwalk_threaded(
void *data)
{
struct xfs_pwork_ctl pctl;
struct xfs_perag *pag;
xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, startino);
int error;
@ -627,7 +634,7 @@ xfs_iwalk_threaded(
if (error)
return error;
for (; agno < mp->m_sb.sb_agcount; agno++) {
for_each_perag_from(mp, agno, pag) {
struct xfs_iwalk_ag *iwag;
if (xfs_pwork_ctl_want_abort(&pctl))
@ -635,17 +642,25 @@ xfs_iwalk_threaded(
iwag = kmem_zalloc(sizeof(struct xfs_iwalk_ag), 0);
iwag->mp = mp;
/*
* perag is being handed off to async work, so take another
* reference for the async work to release.
*/
atomic_inc(&pag->pag_ref);
iwag->pag = pag;
iwag->iwalk_fn = iwalk_fn;
iwag->data = data;
iwag->startino = startino;
iwag->sz_recs = xfs_iwalk_prefetch(inode_records);
iwag->lastino = NULLFSINO;
xfs_pwork_queue(&pctl, &iwag->pwork);
startino = XFS_AGINO_TO_INO(mp, agno + 1, 0);
startino = XFS_AGINO_TO_INO(mp, pag->pag_agno + 1, 0);
if (flags & XFS_INOBT_WALK_SAME_AG)
break;
}
if (pag)
xfs_perag_put(pag);
if (polled)
xfs_pwork_poll(&pctl);
return xfs_pwork_destroy(&pctl);
@ -715,6 +730,7 @@ xfs_inobt_walk(
.pwork = XFS_PWORK_SINGLE_THREADED,
.lastino = NULLFSINO,
};
struct xfs_perag *pag;
xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, startino);
int error;
@ -725,15 +741,19 @@ xfs_inobt_walk(
if (error)
return error;
for (; agno < mp->m_sb.sb_agcount; agno++) {
for_each_perag_from(mp, agno, pag) {
iwag.pag = pag;
error = xfs_iwalk_ag(&iwag);
if (error)
break;
iwag.startino = XFS_AGINO_TO_INO(mp, agno + 1, 0);
iwag.startino = XFS_AGINO_TO_INO(mp, pag->pag_agno + 1, 0);
if (flags & XFS_INOBT_WALK_SAME_AG)
break;
iwag.pag = NULL;
}
if (iwag.pag)
xfs_perag_put(pag);
xfs_iwalk_free(&iwag);
return error;
}

2
fs/xfs/xfs_linux.h
View File

@ -196,6 +196,8 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y)
int xfs_rw_bdev(struct block_device *bdev, sector_t sector, unsigned int count,
char *data, unsigned int op);
void xfs_flush_bdev_async(struct bio *bio, struct block_device *bdev,
struct completion *done);
#define ASSERT_ALWAYS(expr) \
(likely(expr) ? (void)0 : assfail(NULL, #expr, __FILE__, __LINE__))

273
fs/xfs/xfs_log.c
View File

@ -502,6 +502,7 @@ __xlog_state_release_iclog(
iclog->ic_header.h_tail_lsn = cpu_to_be64(tail_lsn);
xlog_verify_tail_lsn(log, iclog, tail_lsn);
/* cycle incremented when incrementing curr_block */
trace_xlog_iclog_syncing(iclog, _RET_IP_);
return true;
}
@ -513,13 +514,14 @@ __xlog_state_release_iclog(
* Flush iclog to disk if this is the last reference to the given iclog and the
* it is in the WANT_SYNC state.
*/
static int
int
xlog_state_release_iclog(
struct xlog *log,
struct xlog_in_core *iclog)
{
lockdep_assert_held(&log->l_icloglock);
trace_xlog_iclog_release(iclog, _RET_IP_);
if (iclog->ic_state == XLOG_STATE_IOERROR)
return -EIO;
@ -533,23 +535,6 @@ xlog_state_release_iclog(
return 0;
}
void
xfs_log_release_iclog(
struct xlog_in_core *iclog)
{
struct xlog *log = iclog->ic_log;
bool sync = false;
if (atomic_dec_and_lock(&iclog->ic_refcnt, &log->l_icloglock)) {
if (iclog->ic_state != XLOG_STATE_IOERROR)
sync = __xlog_state_release_iclog(log, iclog);
spin_unlock(&log->l_icloglock);
}
if (sync)
xlog_sync(log, iclog);
}
/*
* Mount a log filesystem
*
@ -770,6 +755,9 @@ xfs_log_mount_finish(
if (readonly)
mp->m_flags |= XFS_MOUNT_RDONLY;
/* Make sure the log is dead if we're returning failure. */
ASSERT(!error || (mp->m_log->l_flags & XLOG_IO_ERROR));
return error;
}
@ -786,16 +774,19 @@ xfs_log_mount_cancel(
}
/*
* Wait for the iclog to be written disk, or return an error if the log has been
* shut down.
* Wait for the iclog and all prior iclogs to be written disk as required by the
* log force state machine. Waiting on ic_force_wait ensures iclog completions
* have been ordered and callbacks run before we are woken here, hence
* guaranteeing that all the iclogs up to this one are on stable storage.
*/
static int
int
xlog_wait_on_iclog(
struct xlog_in_core *iclog)
__releases(iclog->ic_log->l_icloglock)
{
struct xlog *log = iclog->ic_log;
trace_xlog_iclog_wait_on(iclog, _RET_IP_);
if (!XLOG_FORCED_SHUTDOWN(log) &&
iclog->ic_state != XLOG_STATE_ACTIVE &&
iclog->ic_state != XLOG_STATE_DIRTY) {
@ -818,9 +809,7 @@ xlog_wait_on_iclog(
static int
xlog_write_unmount_record(
struct xlog *log,
struct xlog_ticket *ticket,
xfs_lsn_t *lsn,
uint flags)
struct xlog_ticket *ticket)
{
struct xfs_unmount_log_format ulf = {
.magic = XLOG_UNMOUNT_TYPE,
@ -837,7 +826,15 @@ xlog_write_unmount_record(
/* account for space used by record data */
ticket->t_curr_res -= sizeof(ulf);
return xlog_write(log, &vec, ticket, lsn, NULL, flags, false);
/*
* For external log devices, we need to flush the data device cache
* first to ensure all metadata writeback is on stable storage before we
* stamp the tail LSN into the unmount record.
*/
if (log->l_targ != log->l_mp->m_ddev_targp)
blkdev_issue_flush(log->l_targ->bt_bdev);
return xlog_write(log, &vec, ticket, NULL, NULL, XLOG_UNMOUNT_TRANS);
}
/*
@ -851,15 +848,13 @@ xlog_unmount_write(
struct xfs_mount *mp = log->l_mp;
struct xlog_in_core *iclog;
struct xlog_ticket *tic = NULL;
xfs_lsn_t lsn;
uint flags = XLOG_UNMOUNT_TRANS;
int error;
error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0);
if (error)
goto out_err;
error = xlog_write_unmount_record(log, tic, &lsn, flags);
error = xlog_write_unmount_record(log, tic);
/*
* At this point, we're umounting anyway, so there's no point in
* transitioning log state to IOERROR. Just continue...
@ -876,6 +871,11 @@ out_err:
else
ASSERT(iclog->ic_state == XLOG_STATE_WANT_SYNC ||
iclog->ic_state == XLOG_STATE_IOERROR);
/*
* Ensure the journal is fully flushed and on stable storage once the
* iclog containing the unmount record is written.
*/
iclog->ic_flags |= (XLOG_ICL_NEED_FLUSH | XLOG_ICL_NEED_FUA);
error = xlog_state_release_iclog(log, iclog);
xlog_wait_on_iclog(iclog);
@ -1401,6 +1401,11 @@ xlog_alloc_log(
xlog_assign_atomic_lsn(&log->l_last_sync_lsn, 1, 0);
log->l_curr_cycle = 1; /* 0 is bad since this is initial value */
if (xfs_sb_version_haslogv2(&mp->m_sb) && mp->m_sb.sb_logsunit > 1)
log->l_iclog_roundoff = mp->m_sb.sb_logsunit;
else
log->l_iclog_roundoff = BBSIZE;
xlog_grant_head_init(&log->l_reserve_head);
xlog_grant_head_init(&log->l_write_head);
@ -1479,7 +1484,6 @@ xlog_alloc_log(
iclog->ic_state = XLOG_STATE_ACTIVE;
iclog->ic_log = log;
atomic_set(&iclog->ic_refcnt, 0);
spin_lock_init(&iclog->ic_callback_lock);
INIT_LIST_HEAD(&iclog->ic_callbacks);
iclog->ic_datap = (char *)iclog->ic_data + log->l_iclog_hsize;
@ -1546,8 +1550,7 @@ xlog_commit_record(
if (XLOG_FORCED_SHUTDOWN(log))
return -EIO;
error = xlog_write(log, &vec, ticket, lsn, iclog, XLOG_COMMIT_TRANS,
false);
error = xlog_write(log, &vec, ticket, lsn, iclog, XLOG_COMMIT_TRANS);
if (error)
xfs_force_shutdown(log->l_mp, SHUTDOWN_LOG_IO_ERROR);
return error;
@ -1753,10 +1756,10 @@ xlog_write_iclog(
struct xlog *log,
struct xlog_in_core *iclog,
uint64_t bno,
unsigned int count,
bool need_flush)
unsigned int count)
{
ASSERT(bno < log->l_logBBsize);
trace_xlog_iclog_write(iclog, _RET_IP_);
/*
* We lock the iclogbufs here so that we can serialise against I/O
@ -1792,10 +1795,12 @@ xlog_write_iclog(
* writeback throttle from throttling log writes behind background
* metadata writeback and causing priority inversions.
*/
iclog->ic_bio.bi_opf = REQ_OP_WRITE | REQ_META | REQ_SYNC |
REQ_IDLE | REQ_FUA;
if (need_flush)
iclog->ic_bio.bi_opf = REQ_OP_WRITE | REQ_META | REQ_SYNC | REQ_IDLE;
if (iclog->ic_flags & XLOG_ICL_NEED_FLUSH)
iclog->ic_bio.bi_opf |= REQ_PREFLUSH;
if (iclog->ic_flags & XLOG_ICL_NEED_FUA)
iclog->ic_bio.bi_opf |= REQ_FUA;
iclog->ic_flags &= ~(XLOG_ICL_NEED_FLUSH | XLOG_ICL_NEED_FUA);
if (xlog_map_iclog_data(&iclog->ic_bio, iclog->ic_data, count)) {
xfs_force_shutdown(log->l_mp, SHUTDOWN_LOG_IO_ERROR);
@ -1854,29 +1859,15 @@ xlog_calc_iclog_size(
uint32_t *roundoff)
{
uint32_t count_init, count;
bool use_lsunit;
use_lsunit = xfs_sb_version_haslogv2(&log->l_mp->m_sb) &&
log->l_mp->m_sb.sb_logsunit > 1;
/* Add for LR header */
count_init = log->l_iclog_hsize + iclog->ic_offset;
count = roundup(count_init, log->l_iclog_roundoff);
/* Round out the log write size */
if (use_lsunit) {
/* we have a v2 stripe unit to use */
count = XLOG_LSUNITTOB(log, XLOG_BTOLSUNIT(log, count_init));
} else {
count = BBTOB(BTOBB(count_init));
}
ASSERT(count >= count_init);
*roundoff = count - count_init;
if (use_lsunit)
ASSERT(*roundoff < log->l_mp->m_sb.sb_logsunit);
else
ASSERT(*roundoff < BBTOB(1));
ASSERT(count >= count_init);
ASSERT(*roundoff < log->l_iclog_roundoff);
return count;
}
@ -1912,9 +1903,9 @@ xlog_sync(
unsigned int roundoff; /* roundoff to BB or stripe */
uint64_t bno;
unsigned int size;
bool need_flush = true, split = false;
ASSERT(atomic_read(&iclog->ic_refcnt) == 0);
trace_xlog_iclog_sync(iclog, _RET_IP_);
count = xlog_calc_iclog_size(log, iclog, &roundoff);
@ -1937,10 +1928,8 @@ xlog_sync(
bno = BLOCK_LSN(be64_to_cpu(iclog->ic_header.h_lsn));
/* Do we need to split this write into 2 parts? */
if (bno + BTOBB(count) > log->l_logBBsize) {
if (bno + BTOBB(count) > log->l_logBBsize)
xlog_split_iclog(log, &iclog->ic_header, bno, count);
split = true;
}
/* calculcate the checksum */
iclog->ic_header.h_crc = xlog_cksum(log, &iclog->ic_header,
@ -1961,22 +1950,8 @@ xlog_sync(
be64_to_cpu(iclog->ic_header.h_lsn));
}
#endif
/*
* Flush the data device before flushing the log to make sure all meta
* data written back from the AIL actually made it to disk before
* stamping the new log tail LSN into the log buffer. For an external
* log we need to issue the flush explicitly, and unfortunately
* synchronously here; for an internal log we can simply use the block
* layer state machine for preflushes.
*/
if (log->l_targ != log->l_mp->m_ddev_targp || split) {
xfs_blkdev_issue_flush(log->l_mp->m_ddev_targp);
need_flush = false;
}
xlog_verify_iclog(log, iclog, count);
xlog_write_iclog(log, iclog, bno, count, need_flush);
xlog_write_iclog(log, iclog, bno, count);
}
/*
@ -2158,13 +2133,16 @@ static int
xlog_write_calc_vec_length(
struct xlog_ticket *ticket,
struct xfs_log_vec *log_vector,
bool need_start_rec)
uint optype)
{
struct xfs_log_vec *lv;
int headers = need_start_rec ? 1 : 0;
int headers = 0;
int len = 0;
int i;
if (optype & XLOG_START_TRANS)
headers++;
for (lv = log_vector; lv; lv = lv->lv_next) {
/* we don't write ordered log vectors */
if (lv->lv_buf_len == XFS_LOG_VEC_ORDERED)
@ -2384,8 +2362,7 @@ xlog_write(
struct xlog_ticket *ticket,
xfs_lsn_t *start_lsn,
struct xlog_in_core **commit_iclog,
uint flags,
bool need_start_rec)
uint optype)
{
struct xlog_in_core *iclog = NULL;
struct xfs_log_vec *lv = log_vector;
@ -2413,8 +2390,9 @@ xlog_write(
xfs_force_shutdown(log->l_mp, SHUTDOWN_LOG_IO_ERROR);
}
len = xlog_write_calc_vec_length(ticket, log_vector, need_start_rec);
*start_lsn = 0;
len = xlog_write_calc_vec_length(ticket, log_vector, optype);
if (start_lsn)
*start_lsn = 0;
while (lv && (!lv->lv_niovecs || index < lv->lv_niovecs)) {
void *ptr;
int log_offset;
@ -2427,8 +2405,8 @@ xlog_write(
ASSERT(log_offset <= iclog->ic_size - 1);
ptr = iclog->ic_datap + log_offset;
/* start_lsn is the first lsn written to. That's all we need. */
if (!*start_lsn)
/* Start_lsn is the first lsn written to. */
if (start_lsn && !*start_lsn)
*start_lsn = be64_to_cpu(iclog->ic_header.h_lsn);
/*
@ -2441,6 +2419,7 @@ xlog_write(
int copy_len;
int copy_off;
bool ordered = false;
bool wrote_start_rec = false;
/* ordered log vectors have no regions to write */
if (lv->lv_buf_len == XFS_LOG_VEC_ORDERED) {
@ -2458,13 +2437,15 @@ xlog_write(
* write a start record. Only do this for the first
* iclog we write to.
*/
if (need_start_rec) {
if (optype & XLOG_START_TRANS) {
xlog_write_start_rec(ptr, ticket);
xlog_write_adv_cnt(&ptr, &len, &log_offset,
sizeof(struct xlog_op_header));
optype &= ~XLOG_START_TRANS;
wrote_start_rec = true;
}
ophdr = xlog_write_setup_ophdr(log, ptr, ticket, flags);
ophdr = xlog_write_setup_ophdr(log, ptr, ticket, optype);
if (!ophdr)
return -EIO;
@ -2495,14 +2476,13 @@ xlog_write(
}
copy_len += sizeof(struct xlog_op_header);
record_cnt++;
if (need_start_rec) {
if (wrote_start_rec) {
copy_len += sizeof(struct xlog_op_header);
record_cnt++;
need_start_rec = false;
}
data_cnt += contwr ? copy_len : 0;
error = xlog_write_copy_finish(log, iclog, flags,
error = xlog_write_copy_finish(log, iclog, optype,
&record_cnt, &data_cnt,
&partial_copy,
&partial_copy_len,
@ -2546,7 +2526,7 @@ next_lv:
spin_lock(&log->l_icloglock);
xlog_state_finish_copy(log, iclog, record_cnt, data_cnt);
if (commit_iclog) {
ASSERT(flags & XLOG_COMMIT_TRANS);
ASSERT(optype & XLOG_COMMIT_TRANS);
*commit_iclog = iclog;
} else {
error = xlog_state_release_iclog(log, iclog);
@ -2562,6 +2542,7 @@ xlog_state_activate_iclog(
int *iclogs_changed)
{
ASSERT(list_empty_careful(&iclog->ic_callbacks));
trace_xlog_iclog_activate(iclog, _RET_IP_);
/*
* If the number of ops in this iclog indicate it just contains the
@ -2652,6 +2633,8 @@ xlog_state_clean_iclog(
{
int iclogs_changed = 0;
trace_xlog_iclog_clean(dirty_iclog, _RET_IP_);
dirty_iclog->ic_state = XLOG_STATE_DIRTY;
xlog_state_activate_iclogs(log, &iclogs_changed);
@ -2711,6 +2694,7 @@ xlog_state_set_callback(
struct xlog_in_core *iclog,
xfs_lsn_t header_lsn)
{
trace_xlog_iclog_callback(iclog, _RET_IP_);
iclog->ic_state = XLOG_STATE_CALLBACK;
ASSERT(XFS_LSN_CMP(atomic64_read(&log->l_last_sync_lsn),
@ -2776,43 +2760,6 @@ xlog_state_iodone_process_iclog(
}
}
/*
* Keep processing entries in the iclog callback list until we come around and
* it is empty. We need to atomically see that the list is empty and change the
* state to DIRTY so that we don't miss any more callbacks being added.
*
* This function is called with the icloglock held and returns with it held. We
* drop it while running callbacks, however, as holding it over thousands of
* callbacks is unnecessary and causes excessive contention if we do.
*/
static void
xlog_state_do_iclog_callbacks(
struct xlog *log,
struct xlog_in_core *iclog)
__releases(&log->l_icloglock)
__acquires(&log->l_icloglock)
{
spin_unlock(&log->l_icloglock);
spin_lock(&iclog->ic_callback_lock);
while (!list_empty(&iclog->ic_callbacks)) {
LIST_HEAD(tmp);
list_splice_init(&iclog->ic_callbacks, &tmp);
spin_unlock(&iclog->ic_callback_lock);
xlog_cil_process_committed(&tmp);
spin_lock(&iclog->ic_callback_lock);
}
/*
* Pick up the icloglock while still holding the callback lock so we
* serialise against anyone trying to add more callbacks to this iclog
* now we've finished processing.
*/
spin_lock(&log->l_icloglock);
spin_unlock(&iclog->ic_callback_lock);
}
STATIC void
xlog_state_do_callback(
struct xlog *log)
@ -2841,6 +2788,8 @@ xlog_state_do_callback(
repeats++;
do {
LIST_HEAD(cb_list);
if (xlog_state_iodone_process_iclog(log, iclog,
&ioerror))
break;
@ -2850,13 +2799,15 @@ xlog_state_do_callback(
iclog = iclog->ic_next;
continue;
}
list_splice_init(&iclog->ic_callbacks, &cb_list);
spin_unlock(&log->l_icloglock);
/*
* Running callbacks will drop the icloglock which means
* we'll have to run at least one more complete loop.
*/
trace_xlog_iclog_callbacks_start(iclog, _RET_IP_);
xlog_cil_process_committed(&cb_list);
trace_xlog_iclog_callbacks_done(iclog, _RET_IP_);
cycled_icloglock = true;
xlog_state_do_iclog_callbacks(log, iclog);
spin_lock(&log->l_icloglock);
if (XLOG_FORCED_SHUTDOWN(log))
wake_up_all(&iclog->ic_force_wait);
else
@ -2902,6 +2853,7 @@ xlog_state_done_syncing(
spin_lock(&log->l_icloglock);
ASSERT(atomic_read(&iclog->ic_refcnt) == 0);
trace_xlog_iclog_sync_done(iclog, _RET_IP_);
/*
* If we got an error, either on the first buffer, or in the case of
@ -2975,6 +2927,8 @@ restart:
atomic_inc(&iclog->ic_refcnt); /* prevents sync */
log_offset = iclog->ic_offset;
trace_xlog_iclog_get_space(iclog, _RET_IP_);
/* On the 1st write to an iclog, figure out lsn. This works
* if iclogs marked XLOG_STATE_WANT_SYNC always write out what they are
* committing to. If the offset is set, that's how many blocks
@ -3140,6 +3094,7 @@ xlog_state_switch_iclogs(
{
ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE);
assert_spin_locked(&log->l_icloglock);
trace_xlog_iclog_switch(iclog, _RET_IP_);
if (!eventual_size)
eventual_size = iclog->ic_offset;
@ -3152,9 +3107,8 @@ xlog_state_switch_iclogs(
log->l_curr_block += BTOBB(eventual_size)+BTOBB(log->l_iclog_hsize);
/* Round up to next log-sunit */
if (xfs_sb_version_haslogv2(&log->l_mp->m_sb) &&
log->l_mp->m_sb.sb_logsunit > 1) {
uint32_t sunit_bb = BTOBB(log->l_mp->m_sb.sb_logsunit);
if (log->l_iclog_roundoff > BBSIZE) {
uint32_t sunit_bb = BTOBB(log->l_iclog_roundoff);
log->l_curr_block = roundup(log->l_curr_block, sunit_bb);
}
@ -3223,6 +3177,8 @@ xfs_log_force(
if (iclog->ic_state == XLOG_STATE_IOERROR)
goto out_error;
trace_xlog_iclog_force(iclog, _RET_IP_);
if (iclog->ic_state == XLOG_STATE_DIRTY ||
(iclog->ic_state == XLOG_STATE_ACTIVE &&
atomic_read(&iclog->ic_refcnt) == 0 && iclog->ic_offset == 0)) {
@ -3281,14 +3237,13 @@ out_error:
}
static int
__xfs_log_force_lsn(
struct xfs_mount *mp,
xlog_force_lsn(
struct xlog *log,
xfs_lsn_t lsn,
uint flags,
int *log_flushed,
bool already_slept)
{
struct xlog *log = mp->m_log;
struct xlog_in_core *iclog;
spin_lock(&log->l_icloglock);
@ -3297,6 +3252,7 @@ __xfs_log_force_lsn(
goto out_error;
while (be64_to_cpu(iclog->ic_header.h_lsn) != lsn) {
trace_xlog_iclog_force_lsn(iclog, _RET_IP_);
iclog = iclog->ic_next;
if (iclog == log->l_iclog)
goto out_unlock;
@ -3321,8 +3277,6 @@ __xfs_log_force_lsn(
if (!already_slept &&
(iclog->ic_prev->ic_state == XLOG_STATE_WANT_SYNC ||
iclog->ic_prev->ic_state == XLOG_STATE_SYNCING)) {
XFS_STATS_INC(mp, xs_log_force_sleep);
xlog_wait(&iclog->ic_prev->ic_write_wait,
&log->l_icloglock);
return -EAGAIN;
@ -3360,25 +3314,29 @@ out_error:
* to disk, that thread will wake up all threads waiting on the queue.
*/
int
xfs_log_force_lsn(
xfs_log_force_seq(
struct xfs_mount *mp,
xfs_lsn_t lsn,
xfs_csn_t seq,
uint flags,
int *log_flushed)
{
struct xlog *log = mp->m_log;
xfs_lsn_t lsn;
int ret;
ASSERT(lsn != 0);
ASSERT(seq != 0);
XFS_STATS_INC(mp, xs_log_force);
trace_xfs_log_force(mp, lsn, _RET_IP_);
trace_xfs_log_force(mp, seq, _RET_IP_);
lsn = xlog_cil_force_lsn(mp->m_log, lsn);
lsn = xlog_cil_force_seq(log, seq);
if (lsn == NULLCOMMITLSN)
return 0;
ret = __xfs_log_force_lsn(mp, lsn, flags, log_flushed, false);
if (ret == -EAGAIN)
ret = __xfs_log_force_lsn(mp, lsn, flags, log_flushed, true);
ret = xlog_force_lsn(log, lsn, flags, log_flushed, false);
if (ret == -EAGAIN) {
XFS_STATS_INC(mp, xs_log_force_sleep);
ret = xlog_force_lsn(log, lsn, flags, log_flushed, true);
}
return ret;
}
@ -3407,12 +3365,11 @@ xfs_log_ticket_get(
* Figure out the total log space unit (in bytes) that would be
* required for a log ticket.
*/
int
xfs_log_calc_unit_res(
struct xfs_mount *mp,
static int
xlog_calc_unit_res(
struct xlog *log,
int unit_bytes)
{
struct xlog *log = mp->m_log;
int iclog_space;
uint num_headers;
@ -3488,18 +3445,20 @@ xfs_log_calc_unit_res(
/* for commit-rec LR header - note: padding will subsume the ophdr */
unit_bytes += log->l_iclog_hsize;
/* for roundoff padding for transaction data and one for commit record */
if (xfs_sb_version_haslogv2(&mp->m_sb) && mp->m_sb.sb_logsunit > 1) {
/* log su roundoff */
unit_bytes += 2 * mp->m_sb.sb_logsunit;
} else {
/* BB roundoff */
unit_bytes += 2 * BBSIZE;
}
/* roundoff padding for transaction data and one for commit record */
unit_bytes += 2 * log->l_iclog_roundoff;
return unit_bytes;
}
int
xfs_log_calc_unit_res(
struct xfs_mount *mp,
int unit_bytes)
{
return xlog_calc_unit_res(mp->m_log, unit_bytes);
}
/*
* Allocate and initialise a new log ticket.
*/
@ -3516,7 +3475,7 @@ xlog_ticket_alloc(
tic = kmem_cache_zalloc(xfs_log_ticket_zone, GFP_NOFS | __GFP_NOFAIL);
unit_res = xfs_log_calc_unit_res(log->l_mp, unit_bytes);
unit_res = xlog_calc_unit_res(log, unit_bytes);
atomic_set(&tic->t_ref, 1);
tic->t_task = current;

5
fs/xfs/xfs_log.h
View File

@ -106,7 +106,7 @@ struct xfs_item_ops;
struct xfs_trans;
int xfs_log_force(struct xfs_mount *mp, uint flags);
int xfs_log_force_lsn(struct xfs_mount *mp, xfs_lsn_t lsn, uint flags,
int xfs_log_force_seq(struct xfs_mount *mp, xfs_csn_t seq, uint flags,
int *log_forced);
int xfs_log_mount(struct xfs_mount *mp,
struct xfs_buftarg *log_target,
@ -117,7 +117,6 @@ void xfs_log_mount_cancel(struct xfs_mount *);
xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
xfs_lsn_t xlog_assign_tail_lsn_locked(struct xfs_mount *mp);
void xfs_log_space_wake(struct xfs_mount *mp);
void xfs_log_release_iclog(struct xlog_in_core *iclog);
int xfs_log_reserve(struct xfs_mount *mp,
int length,
int count,
@ -132,8 +131,6 @@ bool xfs_log_writable(struct xfs_mount *mp);
struct xlog_ticket *xfs_log_ticket_get(struct xlog_ticket *ticket);
void xfs_log_ticket_put(struct xlog_ticket *ticket);
void xfs_log_commit_cil(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_lsn_t *commit_lsn, bool regrant);
void xlog_cil_process_committed(struct list_head *list);
bool xfs_log_item_in_current_chkpt(struct xfs_log_item *lip);

138
fs/xfs/xfs_log_cil.c
View File

@ -656,6 +656,8 @@ xlog_cil_push_work(
struct xfs_log_vec lvhdr = { NULL };
xfs_lsn_t commit_lsn;
xfs_lsn_t push_seq;
struct bio bio;
DECLARE_COMPLETION_ONSTACK(bdev_flush);
new_ctx = kmem_zalloc(sizeof(*new_ctx), KM_NOFS);
new_ctx->ticket = xlog_cil_ticket_alloc(log);
@ -668,9 +670,14 @@ xlog_cil_push_work(
ASSERT(push_seq <= ctx->sequence);
/*
* Wake up any background push waiters now this context is being pushed.
* As we are about to switch to a new, empty CIL context, we no longer
* need to throttle tasks on CIL space overruns. Wake any waiters that
* the hard push throttle may have caught so they can start committing
* to the new context. The ctx->xc_push_lock provides the serialisation
* necessary for safely using the lockless waitqueue_active() check in
* this context.
*/
if (ctx->space_used >= XLOG_CIL_BLOCKING_SPACE_LIMIT(log))
if (waitqueue_active(&cil->xc_push_wait))
wake_up_all(&cil->xc_push_wait);
/*
@ -719,10 +726,19 @@ xlog_cil_push_work(
spin_unlock(&cil->xc_push_lock);
/*
* pull all the log vectors off the items in the CIL, and
* remove the items from the CIL. We don't need the CIL lock
* here because it's only needed on the transaction commit
* side which is currently locked out by the flush lock.
* The CIL is stable at this point - nothing new will be added to it
* because we hold the flush lock exclusively. Hence we can now issue
* a cache flush to ensure all the completed metadata in the journal we
* are about to overwrite is on stable storage.
*/
xfs_flush_bdev_async(&bio, log->l_mp->m_ddev_targp->bt_bdev,
&bdev_flush);
/*
* Pull all the log vectors off the items in the CIL, and remove the
* items from the CIL. We don't need the CIL lock here because it's only
* needed on the transaction commit side which is currently locked out
* by the flush lock.
*/
lv = NULL;
num_iovecs = 0;
@ -772,7 +788,7 @@ xlog_cil_push_work(
* that higher sequences will wait for us to write out a commit record
* before they do.
*
* xfs_log_force_lsn requires us to mirror the new sequence into the cil
* xfs_log_force_seq requires us to mirror the new sequence into the cil
* structure atomically with the addition of this sequence to the
* committing list. This also ensures that we can do unlocked checks
* against the current sequence in log forces without risking
@ -806,7 +822,14 @@ xlog_cil_push_work(
lvhdr.lv_iovecp = &lhdr;
lvhdr.lv_next = ctx->lv_chain;
error = xlog_write(log, &lvhdr, tic, &ctx->start_lsn, NULL, 0, true);
/*
* Before we format and submit the first iclog, we have to ensure that
* the metadata writeback ordering cache flush is complete.
*/
wait_for_completion(&bdev_flush);
error = xlog_write(log, &lvhdr, tic, &ctx->start_lsn, NULL,
XLOG_START_TRANS);
if (error)
goto out_abort_free_ticket;
@ -850,15 +873,21 @@ restart:
xfs_log_ticket_ungrant(log, tic);
spin_lock(&commit_iclog->ic_callback_lock);
/*
* Once we attach the ctx to the iclog, a shutdown can process the
* iclog, run the callbacks and free the ctx. The only thing preventing
* this potential UAF situation here is that we are holding the
* icloglock. Hence we cannot access the ctx once we have attached the
* callbacks and dropped the icloglock.
*/
spin_lock(&log->l_icloglock);
if (commit_iclog->ic_state == XLOG_STATE_IOERROR) {
spin_unlock(&commit_iclog->ic_callback_lock);
spin_unlock(&log->l_icloglock);
goto out_abort;
}
ASSERT_ALWAYS(commit_iclog->ic_state == XLOG_STATE_ACTIVE ||
commit_iclog->ic_state == XLOG_STATE_WANT_SYNC);
list_add_tail(&ctx->iclog_entry, &commit_iclog->ic_callbacks);
spin_unlock(&commit_iclog->ic_callback_lock);
/*
* now the checkpoint commit is complete and we've attached the
@ -870,8 +899,50 @@ restart:
wake_up_all(&cil->xc_commit_wait);
spin_unlock(&cil->xc_push_lock);
/* release the hounds! */
xfs_log_release_iclog(commit_iclog);
/*
* If the checkpoint spans multiple iclogs, wait for all previous iclogs
* to complete before we submit the commit_iclog. We can't use state
* checks for this - ACTIVE can be either a past completed iclog or a
* future iclog being filled, while WANT_SYNC through SYNC_DONE can be a
* past or future iclog awaiting IO or ordered IO completion to be run.
* In the latter case, if it's a future iclog and we wait on it, the we
* will hang because it won't get processed through to ic_force_wait
* wakeup until this commit_iclog is written to disk. Hence we use the
* iclog header lsn and compare it to the commit lsn to determine if we
* need to wait on iclogs or not.
*
* NOTE: It is not safe to reference the ctx after this check as we drop
* the icloglock if we have to wait for completion of other iclogs.
*/
if (ctx->start_lsn != commit_lsn) {
xfs_lsn_t plsn;
plsn = be64_to_cpu(commit_iclog->ic_prev->ic_header.h_lsn);
if (plsn && XFS_LSN_CMP(plsn, commit_lsn) < 0) {
/*
* Waiting on ic_force_wait orders the completion of
* iclogs older than ic_prev. Hence we only need to wait
* on the most recent older iclog here.
*/
xlog_wait_on_iclog(commit_iclog->ic_prev);
spin_lock(&log->l_icloglock);
}
/*
* We need to issue a pre-flush so that the ordering for this
* checkpoint is correctly preserved down to stable storage.
*/
commit_iclog->ic_flags |= XLOG_ICL_NEED_FLUSH;
}
/*
* The commit iclog must be written to stable storage to guarantee
* journal IO vs metadata writeback IO is correctly ordered on stable
* storage.
*/
commit_iclog->ic_flags |= XLOG_ICL_NEED_FUA;
xlog_state_release_iclog(log, commit_iclog);
spin_unlock(&log->l_icloglock);
return;
out_skip:
@ -907,7 +978,7 @@ xlog_cil_push_background(
ASSERT(!list_empty(&cil->xc_cil));
/*
* don't do a background push if we haven't used up all the
* Don't do a background push if we haven't used up all the
* space available yet.
*/
if (cil->xc_ctx->space_used < XLOG_CIL_SPACE_LIMIT(log)) {
@ -931,9 +1002,16 @@ xlog_cil_push_background(
/*
* If we are well over the space limit, throttle the work that is being
* done until the push work on this context has begun.
* done until the push work on this context has begun. Enforce the hard
* throttle on all transaction commits once it has been activated, even
* if the committing transactions have resulted in the space usage
* dipping back down under the hard limit.
*
* The ctx->xc_push_lock provides the serialisation necessary for safely
* using the lockless waitqueue_active() check in this context.
*/
if (cil->xc_ctx->space_used >= XLOG_CIL_BLOCKING_SPACE_LIMIT(log)) {
if (cil->xc_ctx->space_used >= XLOG_CIL_BLOCKING_SPACE_LIMIT(log) ||
waitqueue_active(&cil->xc_push_wait)) {
trace_xfs_log_cil_wait(log, cil->xc_ctx->ticket);
ASSERT(cil->xc_ctx->space_used < log->l_logsize);
xlog_wait(&cil->xc_push_wait, &cil->xc_push_lock);
@ -1008,16 +1086,14 @@ xlog_cil_empty(
* allowed again.
*/
void
xfs_log_commit_cil(
struct xfs_mount *mp,
xlog_cil_commit(
struct xlog *log,
struct xfs_trans *tp,
xfs_lsn_t *commit_lsn,
xfs_csn_t *commit_seq,
bool regrant)
{
struct xlog *log = mp->m_log;
struct xfs_cil *cil = log->l_cilp;
struct xfs_log_item *lip, *next;
xfs_lsn_t xc_commit_lsn;
/*
* Do all necessary memory allocation before we lock the CIL.
@ -1031,10 +1107,6 @@ xfs_log_commit_cil(
xlog_cil_insert_items(log, tp);
xc_commit_lsn = cil->xc_ctx->sequence;
if (commit_lsn)
*commit_lsn = xc_commit_lsn;
if (regrant && !XLOG_FORCED_SHUTDOWN(log))
xfs_log_ticket_regrant(log, tp->t_ticket);
else
@ -1057,8 +1129,10 @@ xfs_log_commit_cil(
list_for_each_entry_safe(lip, next, &tp->t_items, li_trans) {
xfs_trans_del_item(lip);
if (lip->li_ops->iop_committing)
lip->li_ops->iop_committing(lip, xc_commit_lsn);
lip->li_ops->iop_committing(lip, cil->xc_ctx->sequence);
}
if (commit_seq)
*commit_seq = cil->xc_ctx->sequence;
/* xlog_cil_push_background() releases cil->xc_ctx_lock */
xlog_cil_push_background(log);
@ -1075,9 +1149,9 @@ xfs_log_commit_cil(
* iclog flush is necessary following this call.
*/
xfs_lsn_t
xlog_cil_force_lsn(
xlog_cil_force_seq(
struct xlog *log,
xfs_lsn_t sequence)
xfs_csn_t sequence)
{
struct xfs_cil *cil = log->l_cilp;
struct xfs_cil_ctx *ctx;
@ -1173,21 +1247,17 @@ bool
xfs_log_item_in_current_chkpt(
struct xfs_log_item *lip)
{
struct xfs_cil_ctx *ctx;
struct xfs_cil_ctx *ctx = lip->li_mountp->m_log->l_cilp->xc_ctx;
if (list_empty(&lip->li_cil))
return false;
ctx = lip->li_mountp->m_log->l_cilp->xc_ctx;
/*
* li_seq is written on the first commit of a log item to record the
* first checkpoint it is written to. Hence if it is different to the
* current sequence, we're in a new checkpoint.
*/
if (XFS_LSN_CMP(lip->li_seq, ctx->sequence) != 0)
return false;
return true;
return lip->li_seq == ctx->sequence;
}
/*

41
fs/xfs/xfs_log_priv.h
View File

@ -50,6 +50,16 @@ enum xlog_iclog_state {
XLOG_STATE_IOERROR, /* IO error happened in sync'ing log */
};
#define XLOG_STATE_STRINGS \
{ XLOG_STATE_ACTIVE, "XLOG_STATE_ACTIVE" }, \
{ XLOG_STATE_WANT_SYNC, "XLOG_STATE_WANT_SYNC" }, \
{ XLOG_STATE_SYNCING, "XLOG_STATE_SYNCING" }, \
{ XLOG_STATE_DONE_SYNC, "XLOG_STATE_DONE_SYNC" }, \
{ XLOG_STATE_CALLBACK, "XLOG_STATE_CALLBACK" }, \
{ XLOG_STATE_DIRTY, "XLOG_STATE_DIRTY" }, \
{ XLOG_STATE_IOERROR, "XLOG_STATE_IOERROR" }
/*
* Log ticket flags
*/
@ -133,6 +143,9 @@ enum xlog_iclog_state {
#define XLOG_COVER_OPS 5
#define XLOG_ICL_NEED_FLUSH (1 << 0) /* iclog needs REQ_PREFLUSH */
#define XLOG_ICL_NEED_FUA (1 << 1) /* iclog needs REQ_FUA */
/* Ticket reservation region accounting */
#define XLOG_TIC_LEN_MAX 15
@ -201,10 +214,8 @@ typedef struct xlog_in_core {
u32 ic_size;
u32 ic_offset;
enum xlog_iclog_state ic_state;
unsigned int ic_flags;
char *ic_datap; /* pointer to iclog data */
/* Callback structures need their own cacheline */
spinlock_t ic_callback_lock ____cacheline_aligned_in_smp;
struct list_head ic_callbacks;
/* reference counts need their own cacheline */
@ -230,7 +241,7 @@ struct xfs_cil;
struct xfs_cil_ctx {
struct xfs_cil *cil;
xfs_lsn_t sequence; /* chkpt sequence # */
xfs_csn_t sequence; /* chkpt sequence # */
xfs_lsn_t start_lsn; /* first LSN of chkpt commit */
xfs_lsn_t commit_lsn; /* chkpt commit record lsn */
struct xlog_ticket *ticket; /* chkpt ticket */
@ -268,10 +279,10 @@ struct xfs_cil {
struct xfs_cil_ctx *xc_ctx;
spinlock_t xc_push_lock ____cacheline_aligned_in_smp;
xfs_lsn_t xc_push_seq;
xfs_csn_t xc_push_seq;
struct list_head xc_committing;
wait_queue_head_t xc_commit_wait;
xfs_lsn_t xc_current_sequence;
xfs_csn_t xc_current_sequence;
struct work_struct xc_push_work;
wait_queue_head_t xc_push_wait; /* background push throttle */
} ____cacheline_aligned_in_smp;
@ -436,6 +447,8 @@ struct xlog {
#endif
/* log recovery lsn tracking (for buffer submission */
xfs_lsn_t l_recovery_lsn;
uint32_t l_iclog_roundoff;/* padding roundoff */
};
#define XLOG_BUF_CANCEL_BUCKET(log, blkno) \
@ -478,13 +491,14 @@ void xlog_print_tic_res(struct xfs_mount *mp, struct xlog_ticket *ticket);
void xlog_print_trans(struct xfs_trans *);
int xlog_write(struct xlog *log, struct xfs_log_vec *log_vector,
struct xlog_ticket *tic, xfs_lsn_t *start_lsn,
struct xlog_in_core **commit_iclog, uint flags,
bool need_start_rec);
struct xlog_in_core **commit_iclog, uint optype);
int xlog_commit_record(struct xlog *log, struct xlog_ticket *ticket,
struct xlog_in_core **iclog, xfs_lsn_t *lsn);
void xfs_log_ticket_ungrant(struct xlog *log, struct xlog_ticket *ticket);
void xfs_log_ticket_regrant(struct xlog *log, struct xlog_ticket *ticket);
int xlog_state_release_iclog(struct xlog *log, struct xlog_in_core *iclog);
/*
* When we crack an atomic LSN, we sample it first so that the value will not
* change while we are cracking it into the component values. This means we
@ -547,19 +561,18 @@ int xlog_cil_init(struct xlog *log);
void xlog_cil_init_post_recovery(struct xlog *log);
void xlog_cil_destroy(struct xlog *log);
bool xlog_cil_empty(struct xlog *log);
void xlog_cil_commit(struct xlog *log, struct xfs_trans *tp,
xfs_csn_t *commit_seq, bool regrant);
/*
* CIL force routines
*/
xfs_lsn_t
xlog_cil_force_lsn(
struct xlog *log,
xfs_lsn_t sequence);
xfs_lsn_t xlog_cil_force_seq(struct xlog *log, xfs_csn_t sequence);
static inline void
xlog_cil_force(struct xlog *log)
{
xlog_cil_force_lsn(log, log->l_cilp->xc_current_sequence);
xlog_cil_force_seq(log, log->l_cilp->xc_current_sequence);
}
/*
@ -582,6 +595,8 @@ xlog_wait(
remove_wait_queue(wq, &wait);
}
int xlog_wait_on_iclog(struct xlog_in_core *iclog);
/*
* The LSN is valid so long as it is behind the current LSN. If it isn't, this
* means that the next log record that includes this metadata could have a

61
fs/xfs/xfs_log_recover.c
View File

@ -25,6 +25,7 @@
#include "xfs_icache.h"
#include "xfs_error.h"
#include "xfs_buf_item.h"
#include "xfs_ag.h"
#define BLK_AVG(blk1, blk2) ((blk1+blk2) >> 1)
@ -2457,8 +2458,10 @@ xlog_finish_defer_ops(
error = xfs_trans_alloc(mp, &resv, dfc->dfc_blkres,
dfc->dfc_rtxres, XFS_TRANS_RESERVE, &tp);
if (error)
if (error) {
xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR);
return error;
}
/*
* Transfer to this new transaction all the dfops we captured
@ -2741,21 +2744,17 @@ STATIC void
xlog_recover_process_iunlinks(
struct xlog *log)
{
xfs_mount_t *mp;
xfs_agnumber_t agno;
xfs_agi_t *agi;
struct xfs_buf *agibp;
xfs_agino_t agino;
int bucket;
int error;
struct xfs_mount *mp = log->l_mp;
struct xfs_perag *pag;
xfs_agnumber_t agno;
struct xfs_agi *agi;
struct xfs_buf *agibp;
xfs_agino_t agino;
int bucket;
int error;
mp = log->l_mp;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
/*
* Find the agi for this ag.
*/
error = xfs_read_agi(mp, NULL, agno, &agibp);
for_each_perag(mp, agno, pag) {
error = xfs_read_agi(mp, NULL, pag->pag_agno, &agibp);
if (error) {
/*
* AGI is b0rked. Don't process it.
@ -2781,7 +2780,7 @@ xlog_recover_process_iunlinks(
agino = be32_to_cpu(agi->agi_unlinked[bucket]);
while (agino != NULLAGINO) {
agino = xlog_recover_process_one_iunlink(mp,
agno, agino, bucket);
pag->pag_agno, agino, bucket);
cond_resched();
}
}
@ -3452,6 +3451,7 @@ xlog_recover_finish(
* this) before we get around to xfs_log_mount_cancel.
*/
xlog_recover_cancel_intents(log);
xfs_force_shutdown(log->l_mp, SHUTDOWN_LOG_IO_ERROR);
xfs_alert(log->l_mp, "Failed to recover intents");
return error;
}
@ -3493,27 +3493,28 @@ xlog_recover_cancel(
*/
STATIC void
xlog_recover_check_summary(
struct xlog *log)
struct xlog *log)
{
xfs_mount_t *mp;
struct xfs_buf *agfbp;
struct xfs_buf *agibp;
xfs_agnumber_t agno;
uint64_t freeblks;
uint64_t itotal;
uint64_t ifree;
int error;
struct xfs_mount *mp = log->l_mp;
struct xfs_perag *pag;
struct xfs_buf *agfbp;
struct xfs_buf *agibp;
xfs_agnumber_t agno;
uint64_t freeblks;
uint64_t itotal;
uint64_t ifree;
int error;
mp = log->l_mp;
freeblks = 0LL;
itotal = 0LL;
ifree = 0LL;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
error = xfs_read_agf(mp, NULL, agno, 0, &agfbp);
for_each_perag(mp, agno, pag) {
error = xfs_read_agf(mp, NULL, pag->pag_agno, 0, &agfbp);
if (error) {
xfs_alert(mp, "%s agf read failed agno %d error %d",
__func__, agno, error);
__func__, pag->pag_agno, error);
} else {
struct xfs_agf *agfp = agfbp->b_addr;
@ -3522,10 +3523,10 @@ xlog_recover_check_summary(
xfs_buf_relse(agfbp);
}
error = xfs_read_agi(mp, NULL, agno, &agibp);
error = xfs_read_agi(mp, NULL, pag->pag_agno, &agibp);
if (error) {
xfs_alert(mp, "%s agi read failed agno %d error %d",
__func__, agno, error);
__func__, pag->pag_agno, error);
} else {
struct xfs_agi *agi = agibp->b_addr;

136
fs/xfs/xfs_mount.c
View File

@ -32,6 +32,7 @@
#include "xfs_extent_busy.h"
#include "xfs_health.h"
#include "xfs_trace.h"
#include "xfs_ag.h"
static DEFINE_MUTEX(xfs_uuid_table_mutex);
static int xfs_uuid_table_size;
@ -119,41 +120,6 @@ xfs_uuid_unmount(
mutex_unlock(&xfs_uuid_table_mutex);
}
STATIC void
__xfs_free_perag(
struct rcu_head *head)
{
struct xfs_perag *pag = container_of(head, struct xfs_perag, rcu_head);
ASSERT(!delayed_work_pending(&pag->pag_blockgc_work));
ASSERT(atomic_read(&pag->pag_ref) == 0);
kmem_free(pag);
}
/*
* Free up the per-ag resources associated with the mount structure.
*/
STATIC void
xfs_free_perag(
xfs_mount_t *mp)
{
xfs_agnumber_t agno;
struct xfs_perag *pag;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
spin_lock(&mp->m_perag_lock);
pag = radix_tree_delete(&mp->m_perag_tree, agno);
spin_unlock(&mp->m_perag_lock);
ASSERT(pag);
ASSERT(atomic_read(&pag->pag_ref) == 0);
cancel_delayed_work_sync(&pag->pag_blockgc_work);
xfs_iunlink_destroy(pag);
xfs_buf_hash_destroy(pag);
call_rcu(&pag->rcu_head, __xfs_free_perag);
}
}
/*
* Check size of device based on the (data/realtime) block count.
* Note: this check is used by the growfs code as well as mount.
@ -172,96 +138,6 @@ xfs_sb_validate_fsb_count(
return 0;
}
int
xfs_initialize_perag(
xfs_mount_t *mp,
xfs_agnumber_t agcount,
xfs_agnumber_t *maxagi)
{
xfs_agnumber_t index;
xfs_agnumber_t first_initialised = NULLAGNUMBER;
xfs_perag_t *pag;
int error = -ENOMEM;
/*
* Walk the current per-ag tree so we don't try to initialise AGs
* that already exist (growfs case). Allocate and insert all the
* AGs we don't find ready for initialisation.
*/
for (index = 0; index < agcount; index++) {
pag = xfs_perag_get(mp, index);
if (pag) {
xfs_perag_put(pag);
continue;
}
pag = kmem_zalloc(sizeof(*pag), KM_MAYFAIL);
if (!pag) {
error = -ENOMEM;
goto out_unwind_new_pags;
}
pag->pag_agno = index;
pag->pag_mount = mp;
spin_lock_init(&pag->pag_ici_lock);
INIT_DELAYED_WORK(&pag->pag_blockgc_work, xfs_blockgc_worker);
INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC);
error = xfs_buf_hash_init(pag);
if (error)
goto out_free_pag;
init_waitqueue_head(&pag->pagb_wait);
spin_lock_init(&pag->pagb_lock);
pag->pagb_count = 0;
pag->pagb_tree = RB_ROOT;
error = radix_tree_preload(GFP_NOFS);
if (error)
goto out_hash_destroy;
spin_lock(&mp->m_perag_lock);
if (radix_tree_insert(&mp->m_perag_tree, index, pag)) {
WARN_ON_ONCE(1);
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
error = -EEXIST;
goto out_hash_destroy;
}
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
/* first new pag is fully initialized */
if (first_initialised == NULLAGNUMBER)
first_initialised = index;
error = xfs_iunlink_init(pag);
if (error)
goto out_hash_destroy;
spin_lock_init(&pag->pag_state_lock);
}
index = xfs_set_inode_alloc(mp, agcount);
if (maxagi)
*maxagi = index;
mp->m_ag_prealloc_blocks = xfs_prealloc_blocks(mp);
return 0;
out_hash_destroy:
xfs_buf_hash_destroy(pag);
out_free_pag:
kmem_free(pag);
out_unwind_new_pags:
/* unwind any prior newly initialized pags */
for (index = first_initialised; index < agcount; index++) {
pag = radix_tree_delete(&mp->m_perag_tree, index);
if (!pag)
break;
xfs_buf_hash_destroy(pag);
xfs_iunlink_destroy(pag);
kmem_free(pag);
}
return error;
}
/*
* xfs_readsb
*
@ -983,9 +859,17 @@ xfs_mountfs(
/*
* Finish recovering the file system. This part needed to be delayed
* until after the root and real-time bitmap inodes were consistently
* read in.
* read in. Temporarily create per-AG space reservations for metadata
* btree shape changes because space freeing transactions (for inode
* inactivation) require the per-AG reservation in lieu of reserving
* blocks.
*/
error = xfs_fs_reserve_ag_blocks(mp);
if (error && error == -ENOSPC)
xfs_warn(mp,
"ENOSPC reserving per-AG metadata pool, log recovery may fail.");
error = xfs_log_mount_finish(mp);
xfs_fs_unreserve_ag_blocks(mp);
if (error) {
xfs_warn(mp, "log mount finish failed");
goto out_rtunmount;

110
fs/xfs/xfs_mount.h
View File

@ -12,6 +12,7 @@ struct xfs_mru_cache;
struct xfs_ail;
struct xfs_quotainfo;
struct xfs_da_geometry;
struct xfs_perag;
/* dynamic preallocation free space thresholds, 5% down to 1% */
enum {
@ -297,117 +298,12 @@ xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks);
}
/* per-AG block reservation data structures*/
struct xfs_ag_resv {
/* number of blocks originally reserved here */
xfs_extlen_t ar_orig_reserved;
/* number of blocks reserved here */
xfs_extlen_t ar_reserved;
/* number of blocks originally asked for */
xfs_extlen_t ar_asked;
};
/*
* Per-ag incore structure, copies of information in agf and agi, to improve the
* performance of allocation group selection.
*/
typedef struct xfs_perag {
struct xfs_mount *pag_mount; /* owner filesystem */
xfs_agnumber_t pag_agno; /* AG this structure belongs to */
atomic_t pag_ref; /* perag reference count */
char pagf_init; /* this agf's entry is initialized */
char pagi_init; /* this agi's entry is initialized */
char pagf_metadata; /* the agf is preferred to be metadata */
char pagi_inodeok; /* The agi is ok for inodes */
uint8_t pagf_levels[XFS_BTNUM_AGF];
/* # of levels in bno & cnt btree */
bool pagf_agflreset; /* agfl requires reset before use */
uint32_t pagf_flcount; /* count of blocks in freelist */
xfs_extlen_t pagf_freeblks; /* total free blocks */
xfs_extlen_t pagf_longest; /* longest free space */
uint32_t pagf_btreeblks; /* # of blocks held in AGF btrees */
xfs_agino_t pagi_freecount; /* number of free inodes */
xfs_agino_t pagi_count; /* number of allocated inodes */
/*
* Inode allocation search lookup optimisation.
* If the pagino matches, the search for new inodes
* doesn't need to search the near ones again straight away
*/
xfs_agino_t pagl_pagino;
xfs_agino_t pagl_leftrec;
xfs_agino_t pagl_rightrec;
/*
* Bitsets of per-ag metadata that have been checked and/or are sick.
* Callers should hold pag_state_lock before accessing this field.
*/
uint16_t pag_checked;
uint16_t pag_sick;
spinlock_t pag_state_lock;
spinlock_t pagb_lock; /* lock for pagb_tree */
struct rb_root pagb_tree; /* ordered tree of busy extents */
unsigned int pagb_gen; /* generation count for pagb_tree */
wait_queue_head_t pagb_wait; /* woken when pagb_gen changes */
atomic_t pagf_fstrms; /* # of filestreams active in this AG */
spinlock_t pag_ici_lock; /* incore inode cache lock */
struct radix_tree_root pag_ici_root; /* incore inode cache root */
int pag_ici_reclaimable; /* reclaimable inodes */
unsigned long pag_ici_reclaim_cursor; /* reclaim restart point */
/* buffer cache index */
spinlock_t pag_buf_lock; /* lock for pag_buf_hash */
struct rhashtable pag_buf_hash;
/* for rcu-safe freeing */
struct rcu_head rcu_head;
int pagb_count; /* pagb slots in use */
/* Blocks reserved for all kinds of metadata. */
struct xfs_ag_resv pag_meta_resv;
/* Blocks reserved for the reverse mapping btree. */
struct xfs_ag_resv pag_rmapbt_resv;
/* background prealloc block trimming */
struct delayed_work pag_blockgc_work;
/* reference count */
uint8_t pagf_refcount_level;
/*
* Unlinked inode information. This incore information reflects
* data stored in the AGI, so callers must hold the AGI buffer lock
* or have some other means to control concurrency.
*/
struct rhashtable pagi_unlinked_hash;
} xfs_perag_t;
static inline struct xfs_ag_resv *
xfs_perag_resv(
struct xfs_perag *pag,
enum xfs_ag_resv_type type)
{
switch (type) {
case XFS_AG_RESV_METADATA:
return &pag->pag_meta_resv;
case XFS_AG_RESV_RMAPBT:
return &pag->pag_rmapbt_resv;
default:
return NULL;
}
}
int xfs_buf_hash_init(xfs_perag_t *pag);
void xfs_buf_hash_destroy(xfs_perag_t *pag);
int xfs_buf_hash_init(struct xfs_perag *pag);
void xfs_buf_hash_destroy(struct xfs_perag *pag);
extern void xfs_uuid_table_free(void);
extern uint64_t xfs_default_resblks(xfs_mount_t *mp);
extern int xfs_mountfs(xfs_mount_t *mp);
extern int xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount,
xfs_agnumber_t *maxagi);
extern void xfs_unmountfs(xfs_mount_t *);
extern int xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta,

10
fs/xfs/xfs_qm.c
View File

@ -23,6 +23,8 @@
#include "xfs_trace.h"
#include "xfs_icache.h"
#include "xfs_error.h"
#include "xfs_ag.h"
#include "xfs_ialloc.h"
/*
* The global quota manager. There is only one of these for the entire
@ -787,8 +789,12 @@ xfs_qm_qino_alloc(
return error;
if (need_alloc) {
error = xfs_dir_ialloc(&init_user_ns, &tp, NULL, S_IFREG, 1, 0,
0, false, ipp);
xfs_ino_t ino;
error = xfs_dialloc(&tp, 0, S_IFREG, &ino);
if (!error)
error = xfs_init_new_inode(&init_user_ns, tp, NULL, ino,
S_IFREG, 1, 0, 0, false, ipp);
if (error) {
xfs_trans_cancel(tp);
return error;

1
fs/xfs/xfs_qm.h
View File

@ -142,7 +142,6 @@ extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
/* dquot stuff */
extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint);
extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
/* quota ops */
extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);

54
fs/xfs/xfs_qm_syscalls.c
View File

@ -201,7 +201,8 @@ xfs_qm_scall_quotaoff(
* depend on the quota inodes (and other things) being valid as long as
* we keep the lock(s).
*/
xfs_qm_dqrele_all_inodes(mp, flags);
error = xfs_dqrele_all_inodes(mp, flags);
ASSERT(!error);
/*
* Next we make the changes in the quota flag in the mount struct.
@ -747,54 +748,3 @@ xfs_qm_scall_getquota_next(
xfs_qm_dqput(dqp);
return error;
}
STATIC int
xfs_dqrele_inode(
struct xfs_inode *ip,
void *args)
{
uint *flags = args;
/* skip quota inodes */
if (ip == ip->i_mount->m_quotainfo->qi_uquotaip ||
ip == ip->i_mount->m_quotainfo->qi_gquotaip ||
ip == ip->i_mount->m_quotainfo->qi_pquotaip) {
ASSERT(ip->i_udquot == NULL);
ASSERT(ip->i_gdquot == NULL);
ASSERT(ip->i_pdquot == NULL);
return 0;
}
xfs_ilock(ip, XFS_ILOCK_EXCL);
if ((*flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
xfs_qm_dqrele(ip->i_udquot);
ip->i_udquot = NULL;
}
if ((*flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
xfs_qm_dqrele(ip->i_gdquot);
ip->i_gdquot = NULL;
}
if ((*flags & XFS_PQUOTA_ACCT) && ip->i_pdquot) {
xfs_qm_dqrele(ip->i_pdquot);
ip->i_pdquot = NULL;
}
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return 0;
}
/*
* Go thru all the inodes in the file system, releasing their dquots.
*
* Note that the mount structure gets modified to indicate that quotas are off
* AFTER this, in the case of quotaoff.
*/
void
xfs_qm_dqrele_all_inodes(
struct xfs_mount *mp,
uint flags)
{
ASSERT(mp->m_quotainfo);
xfs_inode_walk(mp, XFS_INODE_WALK_INEW_WAIT, xfs_dqrele_inode,
&flags, XFS_ICI_NO_TAG);
}

13
fs/xfs/xfs_reflink.c
View File

@ -27,7 +27,7 @@
#include "xfs_quota.h"
#include "xfs_reflink.h"
#include "xfs_iomap.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
/*
@ -144,7 +144,7 @@ xfs_reflink_find_shared(
if (error)
return error;
cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno);
cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agbp->b_pag);
error = xfs_refcount_find_shared(cur, agbno, aglen, fbno, flen,
find_end_of_shared);
@ -755,16 +755,19 @@ int
xfs_reflink_recover_cow(
struct xfs_mount *mp)
{
struct xfs_perag *pag;
xfs_agnumber_t agno;
int error = 0;
if (!xfs_sb_version_hasreflink(&mp->m_sb))
return 0;
for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
error = xfs_refcount_recover_cow_leftovers(mp, agno);
if (error)
for_each_perag(mp, agno, pag) {
error = xfs_refcount_recover_cow_leftovers(mp, pag);
if (error) {
xfs_perag_put(pag);
break;
}
}
return error;

10
fs/xfs/xfs_super.c
View File

@ -36,6 +36,7 @@
#include "xfs_bmap_item.h"
#include "xfs_reflink.h"
#include "xfs_pwork.h"
#include "xfs_ag.h"
#include <linux/magic.h>
#include <linux/fs_context.h>
@ -339,13 +340,6 @@ xfs_blkdev_put(
blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
}
void
xfs_blkdev_issue_flush(
xfs_buftarg_t *buftarg)
{
blkdev_issue_flush(buftarg->bt_bdev);
}
STATIC void
xfs_close_devices(
struct xfs_mount *mp)
@ -667,7 +661,7 @@ xfs_fs_destroy_inode(
* reclaim path handles this more efficiently than we can here, so
* simply let background reclaim tear down all inodes.
*/
xfs_inode_set_reclaim_tag(ip);
xfs_inode_mark_reclaimable(ip);
}
static void

1
fs/xfs/xfs_super.h
View File

@ -87,7 +87,6 @@ struct xfs_buftarg;
struct block_device;
extern void xfs_flush_inodes(struct xfs_mount *mp);
extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
extern xfs_agnumber_t xfs_set_inode_alloc(struct xfs_mount *,
xfs_agnumber_t agcount);

9
fs/xfs/xfs_symlink.c
View File

@ -21,6 +21,7 @@
#include "xfs_trans_space.h"
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_ialloc.h"
/* ----- Kernel only functions below ----- */
int
@ -161,6 +162,7 @@ xfs_symlink(
struct xfs_dquot *gdqp = NULL;
struct xfs_dquot *pdqp = NULL;
uint resblks;
xfs_ino_t ino;
*ipp = NULL;
@ -223,8 +225,11 @@ xfs_symlink(
/*
* Allocate an inode for the symlink.
*/
error = xfs_dir_ialloc(mnt_userns, &tp, dp, S_IFLNK | (mode & ~S_IFMT),
1, 0, prid, false, &ip);
error = xfs_dialloc(&tp, dp->i_ino, S_IFLNK, &ino);
if (!error)
error = xfs_init_new_inode(mnt_userns, tp, dp, ino,
S_IFLNK | (mode & ~S_IFMT), 1, 0, prid,
false, &ip);
if (error)
goto out_trans_cancel;

2
fs/xfs/xfs_trace.c
View File

@ -30,6 +30,8 @@
#include "xfs_fsmap.h"
#include "xfs_btree_staging.h"
#include "xfs_icache.h"
#include "xfs_ag.h"
#include "xfs_ag_resv.h"
/*
* We include this last to have the helpers above available for the trace

115
fs/xfs/xfs_trace.h
View File

@ -24,6 +24,7 @@ struct xlog_ticket;
struct xlog_recover;
struct xlog_recover_item;
struct xlog_rec_header;
struct xlog_in_core;
struct xfs_buf_log_format;
struct xfs_inode_log_format;
struct xfs_bmbt_irec;
@ -37,7 +38,7 @@ struct xfs_trans_res;
struct xfs_inobt_rec_incore;
union xfs_btree_ptr;
struct xfs_dqtrx;
struct xfs_eofblocks;
struct xfs_icwalk;
#define XFS_ATTR_FILTER_FLAGS \
{ XFS_ATTR_ROOT, "ROOT" }, \
@ -153,10 +154,8 @@ DEFINE_EVENT(xfs_perag_class, name, \
DEFINE_PERAG_REF_EVENT(xfs_perag_get);
DEFINE_PERAG_REF_EVENT(xfs_perag_get_tag);
DEFINE_PERAG_REF_EVENT(xfs_perag_put);
DEFINE_PERAG_REF_EVENT(xfs_perag_set_reclaim);
DEFINE_PERAG_REF_EVENT(xfs_perag_clear_reclaim);
DEFINE_PERAG_REF_EVENT(xfs_perag_set_blockgc);
DEFINE_PERAG_REF_EVENT(xfs_perag_clear_blockgc);
DEFINE_PERAG_REF_EVENT(xfs_perag_set_inode_tag);
DEFINE_PERAG_REF_EVENT(xfs_perag_clear_inode_tag);
DECLARE_EVENT_CLASS(xfs_ag_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno),
@ -632,8 +631,8 @@ DEFINE_EVENT(xfs_inode_class, name, \
TP_PROTO(struct xfs_inode *ip), \
TP_ARGS(ip))
DEFINE_INODE_EVENT(xfs_iget_skip);
DEFINE_INODE_EVENT(xfs_iget_reclaim);
DEFINE_INODE_EVENT(xfs_iget_reclaim_fail);
DEFINE_INODE_EVENT(xfs_iget_recycle);
DEFINE_INODE_EVENT(xfs_iget_recycle_fail);
DEFINE_INODE_EVENT(xfs_iget_hit);
DEFINE_INODE_EVENT(xfs_iget_miss);
@ -1914,7 +1913,6 @@ DEFINE_ATTR_EVENT(xfs_attr_leaf_add);
DEFINE_ATTR_EVENT(xfs_attr_leaf_add_old);
DEFINE_ATTR_EVENT(xfs_attr_leaf_add_new);
DEFINE_ATTR_EVENT(xfs_attr_leaf_add_work);
DEFINE_ATTR_EVENT(xfs_attr_leaf_addname);
DEFINE_ATTR_EVENT(xfs_attr_leaf_create);
DEFINE_ATTR_EVENT(xfs_attr_leaf_compact);
DEFINE_ATTR_EVENT(xfs_attr_leaf_get);
@ -1944,7 +1942,6 @@ DEFINE_ATTR_EVENT(xfs_attr_refillstate);
DEFINE_ATTR_EVENT(xfs_attr_rmtval_get);
DEFINE_ATTR_EVENT(xfs_attr_rmtval_set);
DEFINE_ATTR_EVENT(xfs_attr_rmtval_remove);
#define DEFINE_DA_EVENT(name) \
DEFINE_EVENT(xfs_da_class, name, \
@ -3730,7 +3727,7 @@ TRACE_EVENT(xfs_btree_commit_afakeroot,
TP_fast_assign(
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->btnum = cur->bc_btnum;
__entry->agno = cur->bc_ag.agno;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->agbno = cur->bc_ag.afake->af_root;
__entry->levels = cur->bc_ag.afake->af_levels;
__entry->blocks = cur->bc_ag.afake->af_blocks;
@ -3845,7 +3842,7 @@ TRACE_EVENT(xfs_btree_bload_block,
__entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsb);
__entry->agbno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsb);
} else {
__entry->agno = cur->bc_ag.agno;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->agbno = be32_to_cpu(ptr->s);
}
__entry->nr_records = nr_records;
@ -3887,10 +3884,10 @@ DEFINE_EVENT(xfs_timestamp_range_class, name, \
DEFINE_TIMESTAMP_RANGE_EVENT(xfs_inode_timestamp_range);
DEFINE_TIMESTAMP_RANGE_EVENT(xfs_quota_expiry_range);
DECLARE_EVENT_CLASS(xfs_eofblocks_class,
TP_PROTO(struct xfs_mount *mp, struct xfs_eofblocks *eofb,
DECLARE_EVENT_CLASS(xfs_icwalk_class,
TP_PROTO(struct xfs_mount *mp, struct xfs_icwalk *icw,
unsigned long caller_ip),
TP_ARGS(mp, eofb, caller_ip),
TP_ARGS(mp, icw, caller_ip),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(__u32, flags)
@ -3898,35 +3895,97 @@ DECLARE_EVENT_CLASS(xfs_eofblocks_class,
__field(uint32_t, gid)
__field(prid_t, prid)
__field(__u64, min_file_size)
__field(long, scan_limit)
__field(unsigned long, caller_ip)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->flags = eofb ? eofb->eof_flags : 0;
__entry->uid = eofb ? from_kuid(mp->m_super->s_user_ns,
eofb->eof_uid) : 0;
__entry->gid = eofb ? from_kgid(mp->m_super->s_user_ns,
eofb->eof_gid) : 0;
__entry->prid = eofb ? eofb->eof_prid : 0;
__entry->min_file_size = eofb ? eofb->eof_min_file_size : 0;
__entry->flags = icw ? icw->icw_flags : 0;
__entry->uid = icw ? from_kuid(mp->m_super->s_user_ns,
icw->icw_uid) : 0;
__entry->gid = icw ? from_kgid(mp->m_super->s_user_ns,
icw->icw_gid) : 0;
__entry->prid = icw ? icw->icw_prid : 0;
__entry->min_file_size = icw ? icw->icw_min_file_size : 0;
__entry->scan_limit = icw ? icw->icw_scan_limit : 0;
__entry->caller_ip = caller_ip;
),
TP_printk("dev %d:%d flags 0x%x uid %u gid %u prid %u minsize %llu caller %pS",
TP_printk("dev %d:%d flags 0x%x uid %u gid %u prid %u minsize %llu scan_limit %ld caller %pS",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->flags,
__entry->uid,
__entry->gid,
__entry->prid,
__entry->min_file_size,
__entry->scan_limit,
(char *)__entry->caller_ip)
);
#define DEFINE_EOFBLOCKS_EVENT(name) \
DEFINE_EVENT(xfs_eofblocks_class, name, \
TP_PROTO(struct xfs_mount *mp, struct xfs_eofblocks *eofb, \
#define DEFINE_ICWALK_EVENT(name) \
DEFINE_EVENT(xfs_icwalk_class, name, \
TP_PROTO(struct xfs_mount *mp, struct xfs_icwalk *icw, \
unsigned long caller_ip), \
TP_ARGS(mp, eofb, caller_ip))
DEFINE_EOFBLOCKS_EVENT(xfs_ioc_free_eofblocks);
DEFINE_EOFBLOCKS_EVENT(xfs_blockgc_free_space);
TP_ARGS(mp, icw, caller_ip))
DEFINE_ICWALK_EVENT(xfs_ioc_free_eofblocks);
DEFINE_ICWALK_EVENT(xfs_blockgc_free_space);
TRACE_DEFINE_ENUM(XLOG_STATE_ACTIVE);
TRACE_DEFINE_ENUM(XLOG_STATE_WANT_SYNC);
TRACE_DEFINE_ENUM(XLOG_STATE_SYNCING);
TRACE_DEFINE_ENUM(XLOG_STATE_DONE_SYNC);
TRACE_DEFINE_ENUM(XLOG_STATE_CALLBACK);
TRACE_DEFINE_ENUM(XLOG_STATE_DIRTY);
TRACE_DEFINE_ENUM(XLOG_STATE_IOERROR);
DECLARE_EVENT_CLASS(xlog_iclog_class,
TP_PROTO(struct xlog_in_core *iclog, unsigned long caller_ip),
TP_ARGS(iclog, caller_ip),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(uint32_t, state)
__field(int32_t, refcount)
__field(uint32_t, offset)
__field(unsigned long long, lsn)
__field(unsigned long, caller_ip)
),
TP_fast_assign(
__entry->dev = iclog->ic_log->l_mp->m_super->s_dev;
__entry->state = iclog->ic_state;
__entry->refcount = atomic_read(&iclog->ic_refcnt);
__entry->offset = iclog->ic_offset;
__entry->lsn = be64_to_cpu(iclog->ic_header.h_lsn);
__entry->caller_ip = caller_ip;
),
TP_printk("dev %d:%d state %s refcnt %d offset %u lsn 0x%llx caller %pS",
MAJOR(__entry->dev), MINOR(__entry->dev),
__print_symbolic(__entry->state, XLOG_STATE_STRINGS),
__entry->refcount,
__entry->offset,
__entry->lsn,
(char *)__entry->caller_ip)
);
#define DEFINE_ICLOG_EVENT(name) \
DEFINE_EVENT(xlog_iclog_class, name, \
TP_PROTO(struct xlog_in_core *iclog, unsigned long caller_ip), \
TP_ARGS(iclog, caller_ip))
DEFINE_ICLOG_EVENT(xlog_iclog_activate);
DEFINE_ICLOG_EVENT(xlog_iclog_clean);
DEFINE_ICLOG_EVENT(xlog_iclog_callback);
DEFINE_ICLOG_EVENT(xlog_iclog_callbacks_start);
DEFINE_ICLOG_EVENT(xlog_iclog_callbacks_done);
DEFINE_ICLOG_EVENT(xlog_iclog_force);
DEFINE_ICLOG_EVENT(xlog_iclog_force_lsn);
DEFINE_ICLOG_EVENT(xlog_iclog_get_space);
DEFINE_ICLOG_EVENT(xlog_iclog_release);
DEFINE_ICLOG_EVENT(xlog_iclog_switch);
DEFINE_ICLOG_EVENT(xlog_iclog_sync);
DEFINE_ICLOG_EVENT(xlog_iclog_syncing);
DEFINE_ICLOG_EVENT(xlog_iclog_sync_done);
DEFINE_ICLOG_EVENT(xlog_iclog_want_sync);
DEFINE_ICLOG_EVENT(xlog_iclog_wait_on);
DEFINE_ICLOG_EVENT(xlog_iclog_write);
#endif /* _TRACE_XFS_H */

6
fs/xfs/xfs_trans.c
View File

@ -839,7 +839,7 @@ __xfs_trans_commit(
bool regrant)
{
struct xfs_mount *mp = tp->t_mountp;
xfs_lsn_t commit_lsn = -1;
xfs_csn_t commit_seq = 0;
int error = 0;
int sync = tp->t_flags & XFS_TRANS_SYNC;
@ -881,7 +881,7 @@ __xfs_trans_commit(
xfs_trans_apply_sb_deltas(tp);
xfs_trans_apply_dquot_deltas(tp);
xfs_log_commit_cil(mp, tp, &commit_lsn, regrant);
xlog_cil_commit(mp->m_log, tp, &commit_seq, regrant);
xfs_trans_free(tp);
@ -890,7 +890,7 @@ __xfs_trans_commit(
* log out now and wait for it.
*/
if (sync) {
error = xfs_log_force_lsn(mp, commit_lsn, XFS_LOG_SYNC, NULL);
error = xfs_log_force_seq(mp, commit_seq, XFS_LOG_SYNC, NULL);
XFS_STATS_INC(mp, xs_trans_sync);
} else {
XFS_STATS_INC(mp, xs_trans_async);

4
fs/xfs/xfs_trans.h
View File

@ -43,7 +43,7 @@ struct xfs_log_item {
struct list_head li_cil; /* CIL pointers */
struct xfs_log_vec *li_lv; /* active log vector */
struct xfs_log_vec *li_lv_shadow; /* standby vector */
xfs_lsn_t li_seq; /* CIL commit seq */
xfs_csn_t li_seq; /* CIL commit seq */
};
/*
@ -69,7 +69,7 @@ struct xfs_item_ops {
void (*iop_pin)(struct xfs_log_item *);
void (*iop_unpin)(struct xfs_log_item *, int remove);
uint (*iop_push)(struct xfs_log_item *, struct list_head *);
void (*iop_committing)(struct xfs_log_item *, xfs_lsn_t commit_lsn);
void (*iop_committing)(struct xfs_log_item *lip, xfs_csn_t seq);
void (*iop_release)(struct xfs_log_item *);
xfs_lsn_t (*iop_committed)(struct xfs_log_item *, xfs_lsn_t);
int (*iop_recover)(struct xfs_log_item *lip,