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xfs: move xfs_perag_get/put to xfs_ag.[ch] 

They are AG functions, not superblock functions, so move them to the
appropriate location.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Dave Chinner 2021-06-02 10:48:24 +10:00 committed by Dave Chinner
parent d07f6ca923
commit 9bbafc7191
31 changed files with 172 additions and 160 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

135
fs/xfs/libxfs/xfs_ag.c
View File

@ -27,6 +27,141 @@
#include "xfs_defer.h"
#include "xfs_log_format.h"
#include "xfs_trans.h"
#include "xfs_trace.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,
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;
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;
}
static int
xfs_get_aghdr_buf(

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

@ -9,6 +9,16 @@
struct xfs_mount;
struct xfs_trans;
struct xfs_perag;
/*
* perag get/put wrappers for ref counting
*/
int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t);
struct xfs_perag *xfs_perag_get(struct xfs_mount *, xfs_agnumber_t);
struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t,
int tag);
void xfs_perag_put(struct xfs_perag *pag);
struct aghdr_init_data {
/* per ag data */

2
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"
/*

2
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"

2
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 *

1
fs/xfs/libxfs/xfs_attr_leaf.c
View File

@ -27,6 +27,7 @@
#include "xfs_buf_item.h"
#include "xfs_dir2.h"
#include "xfs_log.h"
#include "xfs_ag.h"
/*

1
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"

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

@ -10,7 +10,6 @@
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_bit.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
@ -27,6 +26,7 @@
#include "xfs_trace.h"
#include "xfs_log.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
/*
* Lookup a record by ino in the btree given by cur.

2
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"
@ -20,6 +19,7 @@
#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(

1
fs/xfs/libxfs/xfs_rmap.c
View File

@ -21,6 +21,7 @@
#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]

2
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"
/*

134
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"
@ -30,67 +29,6 @@
* 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 +779,6 @@ 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

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);

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"

1
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"

2
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"

2
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"

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"

1
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"

2
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"
@ -19,6 +18,7 @@
#include "xfs_buf_item.h"
#include "xfs_errortag.h"
#include "xfs_error.h"
#include "xfs_ag.h"
static kmem_zone_t *xfs_buf_zone;

2
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(

2
fs/xfs/xfs_extent_busy.c
View File

@ -11,13 +11,13 @@
#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(

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"

2
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

2
fs/xfs/xfs_icache.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_inode.h"
#include "xfs_trans.h"
@ -23,6 +22,7 @@
#include "xfs_dquot.h"
#include "xfs_reflink.h"
#include "xfs_ialloc.h"
#include "xfs_ag.h"
#include <linux/iversion.h>

2
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;

1
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)

1
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;

1
fs/xfs/xfs_qm.c
View File

@ -23,6 +23,7 @@
#include "xfs_trace.h"
#include "xfs_icache.h"
#include "xfs_error.h"
#include "xfs_ag.h"
/*
* The global quota manager. There is only one of these for the entire

2
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"
/*

1
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>