Commit Graph

190 Commits

Author SHA1 Message Date
Christoph Hellwig 862a804aae xfs: move the XFS_IFEXTENTS check into xfs_iread_extents
Move the XFS_IFEXTENTS check from the callers into xfs_iread_extents to
simplify the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-04-15 09:35:50 -07:00
Christoph Hellwig ceaf603c70 xfs: move the di_projid field to struct xfs_inode
In preparation of removing the historic icinode struct, move the projid
field into the containing xfs_inode structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-04-07 14:37:03 -07:00
Darrick J. Wong 45068063ef xfs: fix incorrect root dquot corruption error when switching group/project quota types
While writing up a regression test for broken behavior when a chprojid
request fails, I noticed that we were logging corruption notices about
the root dquot of the group/project quota file at mount time when
testing V4 filesystems.

In commit afeda6000b, I was trying to improve ondisk dquot validation
by making sure that when we load an ondisk dquot into memory on behalf
of an incore dquot, the dquot id and type matches.  Unfortunately, I
forgot that V4 filesystems only have two quota files, and can switch
that file between group and project quota types at mount time.  When we
perform that switch, we'll try to load the default quota limits from the
root dquot prior to running quotacheck and log a corruption error when
the types don't match.

This is inconsequential because quotacheck will reset the second quota
file as part of doing the switch, but we shouldn't leave scary messages
in the kernel log.

Fixes: afeda6000b ("xfs: validate ondisk/incore dquot flags")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2021-02-04 09:10:38 -08:00
Chandan Babu R 727e1acd29 xfs: Check for extent overflow when trivally adding a new extent
When adding a new data extent (without modifying an inode's existing
extents) the extent count increases only by 1. This commit checks for
extent count overflow in such cases.

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2021-01-22 16:54:47 -08:00
Kaixu Xia a647d109e0 xfs: fix some comments
Fix the comments to help people understand the code.

Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
[darrick: fix the indenting problems too]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-09-25 11:34:07 -07:00
Darrick J. Wong 4ea1ff3b49 xfs: widen ondisk quota expiration timestamps to handle y2038+
Enable the bigtime feature for quota timers.  We decrease the accuracy
of the timers to ~4s in exchange for being able to set timers up to the
bigtime maximum.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong 9f99c8fe55 xfs: refactor quota timestamp coding
Refactor quota timestamp encoding and decoding into helper functions so
that we can add extra behavior in the next patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong ccc8e771aa xfs: refactor default quota grace period setting code
Refactor the code that sets the default quota grace period into a helper
function so that we can override the ondisk behavior later.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong 11d8a91902 xfs: refactor quota expiration timer modification
Define explicit limits on the range of quota grace period expiration
timeouts and refactor the code that modifies the timeouts into helpers
that clamp the values appropriately.  Note that we'll refactor the
default grace period timer separately.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Christoph Hellwig 664ffb8a42 xfs: move the buffer retry logic to xfs_buf.c
Move the buffer retry state machine logic to xfs_buf.c and call it once
from xfs_ioend instead of duplicating it three times for the three kinds
of buffers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Randy Dunlap b63da6c8df xfs: delete duplicated words + other fixes
Delete repeated words in fs/xfs/.
{we, that, the, a, to, fork}
Change "it it" to "it is" in one location.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
To: linux-fsdevel@vger.kernel.org
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-08-05 08:49:58 -07:00
Carlos Maiolino 32a2b11f46 xfs: Remove kmem_zone_zalloc() usage
Use kmem_cache_zalloc() directly.

With the exception of xlog_ticket_alloc() which will be dealt on the
next patch for readability.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong d8c1af0d6a xfs: rename the ondisk dquot d_flags to d_type
The ondisk dquot stores the quota record type in the flags field.
Rename this field to d_type to make the _type relationship between the
ondisk and incore dquot more obvious.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 1a7ed27165 xfs: create xfs_dqtype_t to represent quota types
Create a new type (xfs_dqtype_t) to represent the type of an incore
dquot (user, group, project, or none).  Rename the incore dquot's
dq_flags field to q_type.

This allows us to replace all the "uint type" arguments to the quota
functions with "xfs_dqtype_t type", to make it obvious when we're
passing a quota type argument into a function.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 0b04dd5d7c xfs: always use xfs_dquot_type when extracting type from a dquot
Always use the xfs_dquot_type helper to extract the quota type from an
incore dquot.  This moves responsibility for filtering internal state
information and whatnot to anybody passing around a struct xfs_dquot.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong e6eb603c7e xfs: refactor quota type testing
Certain functions can only act upon one quota type, so refactor those
functions to use switch statements, in keeping with all the other high
level xfs quota api calls.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 8cd4901da5 xfs: rename XFS_DQ_{USER,GROUP,PROJ} to XFS_DQTYPE_*
We're going to split up the incore dquot state flags from the ondisk
dquot flags (eventually renaming this "type") so start by renaming the
three flags and the bitmask that are going to participate in this.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 12d720fb86 xfs: assume the default quota limits are always set in xfs_qm_adjust_dqlimits
We always initialize the default quota limits to something nowadays, so
we don't need to check that the defaults are set to something before
using them.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong ea0cc6fa8f xfs: refactor quota exceeded test
Refactor the open-coded test for whether or not we're over quota.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong c8c753e19a xfs: remove unnecessary arguments from quota adjust functions
struct xfs_dquot already has a pointer to the xfs mount, so remove the
redundant parameter from xfs_qm_adjust_dq*.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 438769e31e xfs: refactor default quota limits by resource
Now that we've split up the dquot resource fields into separate structs,
do the same for the default limits to enable further refactoring.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 51dbb1be52 xfs: remove qcore from incore dquots
Now that we've stopped using qcore entirely, drop it from the incore
dquot.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 19dce7eaef xfs: stop using q_core timers in the quota code
Add timers fields to the incore dquot, and use that instead of the ones
in qcore.  This eliminates a bunch of endian conversions and will
eventually allow us to remove qcore entirely.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong c8c45fb2f6 xfs: stop using q_core warning counters in the quota code
Add warning counter fields to the incore dquot, and use that instead of
the ones in qcore.  This eliminates a bunch of endian conversions and
will eventually allow us to remove qcore entirely.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong be37d40c1b xfs: stop using q_core counters in the quota code
Add counter fields to the incore dquot, and use that instead of the ones
in qcore.  This eliminates a bunch of endian conversions and will
eventually allow us to remove qcore entirely.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong d3537cf93e xfs: stop using q_core limits in the quota code
Add limits fields in the incore dquot, and use that instead of the ones
in qcore.  This eliminates a bunch of endian conversions and will
eventually allow us to remove qcore entirely.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 784e80f564 xfs: use a per-resource struct for incore dquot data
Introduce a new struct xfs_dquot_res that we'll use to track all the
incore data for a particular resource type (block, inode, rt block).
This will help us (once we've eliminated q_core) to declutter quota
functions that currently open-code field access or pass around fields
around explicitly.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong c51df73341 xfs: stop using q_core.d_id in the quota code
Add a dquot id field to the incore dquot, and use that instead of the
one in qcore.  This eliminates a bunch of endian conversions and will
eventually allow us to remove qcore entirely.

We also rearrange the start of xfs_dquot to remove padding holes, saving
8 bytes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 0b0fa1d1d1 xfs: stop using q_core.d_flags in the quota code
Use the incore dq_flags to figure out the dquot type.  This is the first
step towards removing xfs_disk_dquot from the incore dquot.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong 985a78fdde xfs: rename dquot incore state flags
Rename the existing incore dquot "dq_flags" field to "q_flags" to match
everything else in the structure, then move the two actual dquot state
flags to the XFS_DQFLAG_ namespace from XFS_DQ_.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-07-28 20:24:14 -07:00
Darrick J. Wong afeda6000b xfs: validate ondisk/incore dquot flags
While loading dquot records off disk, make sure that the quota type
flags are the same between the incore dquot and the ondisk dquot.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-07-28 20:24:14 -07:00
Dave Chinner e98084b8be xfs: move xfs_clear_li_failed out of xfs_ail_delete_one()
xfs_ail_delete_one() is called directly from dquot and inode IO
completion, as well as from the generic xfs_trans_ail_delete()
function. Inodes are about to have their own failure handling, and
dquots will in future, too. Pull the clearing of the LI_FAILED flag
up into the callers so we can customise the code appropriately.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-07-07 07:15:07 -07:00
Dave Chinner 2ef3f7f5db xfs: get rid of log item callbacks
They are not used anymore, so remove them from the log item and the
buffer iodone attachment interfaces.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-07-07 07:15:07 -07:00
Dave Chinner 6f5de1808e xfs: use direct calls for dquot IO completion
Similar to inodes, we can call the dquot IO completion functions
directly from the buffer completion code, removing another user of
log item callbacks for IO completion processing.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-07-06 10:46:59 -07:00
Dave Chinner 0c7e5afbea xfs: mark dquot buffers in cache
dquot buffers always have write IO callbacks, so by marking them
directly we can avoid needing to attach ->b_iodone functions to
them. This avoids an indirect call, and makes future modifications
much simpler.

This is largely a rearrangement of the code at this point - no IO
completion functionality changes at this point, just how the
code is run is modified.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-07-06 10:46:58 -07:00
Eric Sandeen e850301f09 xfs: per-type quota timers and warn limits
Move timers and warnings out of xfs_quotainfo and into xfs_def_quota
so that we can utilize them on a per-type basis, rather than enforcing
them based on the values found in the first enabled quota type.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[zlang: new way to get defquota in xfs_qm_init_timelimits]
[zlang: remove redundant defq assign]
Signed-off-by: Zorro Lang <zlang@redhat.com>

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-27 08:49:26 -07:00
Eric Sandeen ce6e7e79ce xfs: switch xfs_get_defquota to take explicit type
xfs_get_defquota() currently takes an xfs_dquot, and from that obtains
the type of default quota we should get (user/group/project).

But early in init, we don't have access to a fully set up quota, so
that's not possible.  The next patch needs go set up default quota
timers early, so switch xfs_get_defquota to take an explicit type
and add a helper function to obtain that type from an xfs_dquot
for the existing callers.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-27 08:49:26 -07:00
Eric Sandeen 3dbb9aa310 xfs: pass xfs_dquot to xfs_qm_adjust_dqtimers
Pass xfs_dquot rather than xfs_disk_dquot to xfs_qm_adjust_dqtimers;
this makes it symmetric with xfs_qm_adjust_dqlimits and will help
the next patch.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-27 08:49:26 -07:00
Darrick J. Wong 78bba5c812 xfs: use ordered buffers to initialize dquot buffers during quotacheck
While QAing the new xfs_repair quotacheck code, I uncovered a quota
corruption bug resulting from a bad interaction between dquot buffer
initialization and quotacheck.  The bug can be reproduced with the
following sequence:

# mkfs.xfs -f /dev/sdf
# mount /dev/sdf /opt -o usrquota
# su nobody -s /bin/bash -c 'touch /opt/barf'
# sync
# xfs_quota -x -c 'report -ahi' /opt
User quota on /opt (/dev/sdf)
                        Inodes
User ID      Used   Soft   Hard Warn/Grace
---------- ---------------------------------
root            3      0      0  00 [------]
nobody          1      0      0  00 [------]

# xfs_io -x -c 'shutdown' /opt
# umount /opt
# mount /dev/sdf /opt -o usrquota
# touch /opt/man2
# xfs_quota -x -c 'report -ahi' /opt
User quota on /opt (/dev/sdf)
                        Inodes
User ID      Used   Soft   Hard Warn/Grace
---------- ---------------------------------
root            1      0      0  00 [------]
nobody          1      0      0  00 [------]

# umount /opt

Notice how the initial quotacheck set the root dquot icount to 3
(rootino, rbmino, rsumino), but after shutdown -> remount -> recovery,
xfs_quota reports that the root dquot has only 1 icount.  We haven't
deleted anything from the filesystem, which means that quota is now
under-counting.  This behavior is not limited to icount or the root
dquot, but this is the shortest reproducer.

I traced the cause of this discrepancy to the way that we handle ondisk
dquot updates during quotacheck vs. regular fs activity.  Normally, when
we allocate a disk block for a dquot, we log the buffer as a regular
(dquot) buffer.  Subsequent updates to the dquots backed by that block
are done via separate dquot log item updates, which means that they
depend on the logged buffer update being written to disk before the
dquot items.  Because individual dquots have their own LSN fields, that
initial dquot buffer must always be recovered.

However, the story changes for quotacheck, which can cause dquot block
allocations but persists the final dquot counter values via a delwri
list.  Because recovery doesn't gate dquot buffer replay on an LSN, this
means that the initial dquot buffer can be replayed over the (newer)
contents that were delwritten at the end of quotacheck.  In effect, this
re-initializes the dquot counters after they've been updated.  If the
log does not contain any other dquot items to recover, the obsolete
dquot contents will not be corrected by log recovery.

Because quotacheck uses a transaction to log the setting of the CHKD
flags in the superblock, we skip quotacheck during the second mount
call, which allows the incorrect icount to remain.

Fix this by changing the ondisk dquot initialization function to use
ordered buffers to write out fresh dquot blocks if it detects that we're
running quotacheck.  If the system goes down before quotacheck can
complete, the CHKD flags will not be set in the superblock and the next
mount will run quotacheck again, which can fix uninitialized dquot
buffers.  This requires amending the defer code to maintaine ordered
buffer state across defer rolls for the sake of the dquot allocation
code.

For regular operations we preserve the current behavior since the dquot
items require properly initialized ondisk dquot records.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-05-19 09:40:56 -07:00
Brian Foster 2b3cf09356 xfs: combine xfs_trans_ail_[remove|delete]()
Now that the functions and callers of
xfs_trans_ail_[remove|delete]() have been fixed up appropriately,
the only difference between the two is the shutdown behavior. There
are only a few callers of the _remove() variant, so make the
shutdown conditional on the parameter and combine the two functions.

Suggested-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-07 08:27:48 -07:00
Brian Foster 6af0479d8b xfs: drop unused shutdown parameter from xfs_trans_ail_remove()
The shutdown parameter of xfs_trans_ail_remove() is no longer used.
The remaining callers use it for items that legitimately might not
be in the AIL or from contexts where AIL state has already been
checked. Remove the unnecessary parameter and fix up the callers.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-07 08:27:47 -07:00
Brian Foster 849274c103 xfs: acquire ->ail_lock from xfs_trans_ail_delete()
Several callers acquire the lock just prior to the call. Callers
that require ->ail_lock for other purposes already check IN_AIL
state and thus don't require the additional shutdown check in the
helper. Push the lock down into xfs_trans_ail_delete(), open code
the instances that still acquire it, and remove the unnecessary ailp
parameter.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-07 08:27:47 -07:00
Brian Foster b707fffda6 xfs: abort consistently on dquot flush failure
The dquot flush handler effectively aborts the dquot flush if the
filesystem is already shut down, but doesn't actually shut down if
the flush fails. Update xfs_qm_dqflush() to consistently abort the
dquot flush and shutdown the fs if the flush fails with an
unexpected error.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-07 08:27:47 -07:00
Brian Foster 629dcb38dc xfs: fix duplicate verification from xfs_qm_dqflush()
The pre-flush dquot verification in xfs_qm_dqflush() duplicates the
read verifier by checking the dquot in the on-disk buffer. Instead,
verify the in-core variant before it is flushed to the buffer.

Fixes: 7224fa482a ("xfs: add full xfs_dqblk verifier")
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-07 08:27:47 -07:00
Brian Foster 8d3d7e2b35 xfs: trylock underlying buffer on dquot flush
A dquot flush currently blocks on the buffer lock for the underlying
dquot buffer. In turn, this causes xfsaild to block rather than
continue processing other items in the meantime. Update
xfs_qm_dqflush() to trylock the buffer, similar to how inode buffers
are handled, and return -EAGAIN if the lock fails. Fix up any
callers that don't currently handle the error properly.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-03-28 09:40:11 -07:00
Christoph Hellwig ba8adad5d0 xfs: remove the kuid/kgid conversion wrappers
Remove the XFS wrappers for converting from and to the kuid/kgid types.
Mostly this means switching to VFS i_{u,g}id_{read,write} helpers, but
in a few spots the calls to the conversion functions is open coded.
To match the use of sb->s_user_ns in the helpers and other file systems,
sb->s_user_ns is also used in the quota code.  The ACL code already does
the conversion in a grotty layering violation in the VFS xattr code,
so it keeps using init_user_ns for the identity mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-03-02 20:55:50 -08:00
Christoph Hellwig 542951592c xfs: remove the icdinode di_uid/di_gid members
Use the Linux inode i_uid/i_gid members everywhere and just convert
from/to the scalar value when reading or writing the on-disk inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-03-02 20:55:50 -08:00
Darrick J. Wong ce92464c18 xfs: make xfs_trans_get_buf return an error code
Convert xfs_trans_get_buf() to return numeric error codes like most
everywhere else in xfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-01-26 14:32:26 -08:00
Arnd Bergmann b8a0880a37 xfs: quota: move to time64_t interfaces
As a preparation for removing the 32-bit time_t type and
all associated interfaces, change xfs to use time64_t and
ktime_get_real_seconds() for the quota housekeeping.

This avoids one difference between 32-bit and 64-bit kernels,
raising the theoretical limit for the quota grace period
to year 2106 on 32-bit instead of year 2038.

Note that common user space tools using the XFS quotactl
interface instead of the generic one still use the y2038
dates.

To fix quotas properly, both the on-disk format and user
space still need to be changed.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-01-06 08:57:37 -08:00
Carlos Maiolino 377bcd5f3b xfs: Remove kmem_zone_free() wrapper
We can remove it now, without needing to rework the KM_ flags.

Use kmem_cache_free() directly.

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-11-18 08:40:44 -08:00