Commit Graph

64128 Commits

Author SHA1 Message Date
Dave Chinner f18c9a9030 xfs: reduce free inode accounting overhead
Shaokun Zhang reported that XFS was using substantial CPU time in
percpu_count_sum() when running a single threaded benchmark on
a high CPU count (128p) machine from xfs_mod_ifree(). The issue
is that the filesystem is empty when the benchmark runs, so inode
allocation is running with a very low inode free count.

With the percpu counter batching, this means comparisons when the
counter is less that 128 * 256 = 32768 use the slow path of adding
up all the counters across the CPUs, and this is expensive on high
CPU count machines.

The summing in xfs_mod_ifree() is only used to fire an assert if an
underrun occurs. The error is ignored by the higher level code.
Hence this is really just debug code and we don't need to run it
on production kernels, nor do we need such debug checks to return
error values just to trigger an assert.

Finally, xfs_mod_icount/xfs_mod_ifree are only called from
xfs_trans_unreserve_and_mod_sb(), so get rid of them and just
directly call the percpu_counter_add/percpu_counter_compare
functions. The compare functions are now run only on debug builds as
they are internal to ASSERT() checks and so only compiled in when
ASSERTs are active (CONFIG_XFS_DEBUG=y or CONFIG_XFS_WARN=y).

Reported-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Dave Chinner <dchinner@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 08:49:25 -07:00
Dave Chinner dc3ffbb140 xfs: gut error handling in xfs_trans_unreserve_and_mod_sb()
xfs: gut error handling in xfs_trans_unreserve_and_mod_sb()

From: Dave Chinner <dchinner@redhat.com>

The error handling in xfs_trans_unreserve_and_mod_sb() is largely
incorrect - rolling back the changes in the transaction if only one
counter underruns makes all the other counters incorrect. We still
allow the change to proceed and committing the transaction, except
now we have multiple incorrect counters instead of a single
underflow.

Further, we don't actually report the error to the caller, so this
is completely silent except on debug kernels that will assert on
failure before we even get to the rollback code.  Hence this error
handling is broken, untested, and largely unnecessary complexity.

Just remove it.

Signed-off-by: Dave Chinner <dchinner@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 08:49:25 -07:00
Christoph Hellwig ef8385128d xfs: cleanup xfs_idestroy_fork
Move freeing the dynamically allocated attr and COW fork, as well
as zeroing the pointers where actually needed into the callers, and
just pass the xfs_ifork structure to xfs_idestroy_fork.  Also simplify
the kmem_free calls by not checking for NULL first.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.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>
2020-05-19 09:40:59 -07:00
Christoph Hellwig f7e67b20ec xfs: move the fork format fields into struct xfs_ifork
Both the data and attr fork have a format that is stored in the legacy
idinode.  Move it into the xfs_ifork structure instead, where it uses
up padding.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-19 09:40:58 -07:00
Christoph Hellwig daf83964a3 xfs: move the per-fork nextents fields into struct xfs_ifork
There are there are three extents counters per inode, one for each of
the forks.  Two are in the legacy icdinode and one is directly in
struct xfs_inode.  Switch to a single counter in the xfs_ifork structure
where it uses up padding at the end of the structure.  This simplifies
various bits of code that just wants the number of extents counter and
can now directly dereference it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.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>
2020-05-19 09:40:58 -07:00
Christoph Hellwig b2c20045b6 xfs: remove xfs_ifree_local_data
xfs_ifree only need to free inline data in the data fork, as we've
already taken care of the attr fork before (and in fact freed the
fork structure).  Just open code the freeing of the inline data.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-19 09:40:58 -07:00
Christoph Hellwig 09c38edd54 xfs: remove the XFS_DFORK_Q macro
Just checking di_forkoff directly is a little easier to follow.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-19 09:40:58 -07:00
Darrick J. Wong 5fd68bdb5a xfs: clean up xchk_bmap_check_rmaps usage of XFS_IFORK_Q
XFS_IFORK_Q is supposed to be a predicate, not a function returning a
value.  Its usage is in xchk_bmap_check_rmaps is incorrect, but that
function only cares about whether or not the "size" of the data is zero
or not.  Convert that logic to use a proper boolean, and teach the
caller to skip the call entirely if the end result would be that we'd do
nothing anyway.  This avoids a crash later in this series.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[hch: generalized the NULL ifor check]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-05-19 09:40:58 -07:00
Christoph Hellwig 4b516ff4e7 xfs: remove the NULL fork handling in xfs_bmapi_read
Now that we fully verify the inode forks before they are added to the
inode cache, the crash reported in

  https://bugzilla.kernel.org/show_bug.cgi?id=204031

can't happen anymore, as we'll never let an inode that has inconsistent
nextents counts vs the presence of an in-core attr fork leak into the
inactivate code path.  So remove the work around to try to handle the
case, and just return an error and warn if the fork is not present.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:58 -07:00
Christoph Hellwig 1a1c57b282 xfs: remove the special COW fork handling in xfs_bmapi_read
We don't call xfs_bmapi_read for the COW fork anymore, so remove the
special casing.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:58 -07:00
Christoph Hellwig 0f45a1b20c xfs: improve local fork verification
Call the data/attr local fork verifiers as soon as we are ready for them.
This keeps them close to the code setting up the forks, and avoids a
few branches later on.  Also open code xfs_inode_verify_forks in the
only remaining caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:58 -07:00
Christoph Hellwig 7c7ba21863 xfs: refactor xfs_inode_verify_forks
The split between xfs_inode_verify_forks and the two helpers
implementing the actual functionality is a little strange.  Reshuffle
it so that xfs_inode_verify_forks verifies if the data and attr forks
are actually in local format and only call the low-level helpers if
that is the case.  Handle the actual error reporting in the low-level
handlers to streamline the caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig 1934c8bd81 xfs: remove xfs_ifork_ops
xfs_ifork_ops add up to two indirect calls per inode read and flush,
despite just having a single instance in the kernel.  In xfsprogs
phase6 in xfs_repair overrides the verify_dir method to deal with inodes
that do not have a valid parent, but that can be fixed pretty easily
by ensuring they always have a valid looking parent.

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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig bb8a66af4f xfs: remove xfs_iread
There is not much point in the xfs_iread function, as it has a single
caller and not a whole lot of code.  Move it into the only caller,
and trim down the overdocumentation to just documenting the important
"why" instead of a lot of redundant "what".

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig 7f02901235 xfs: don't reset i_delayed_blks in xfs_iread
i_delayed_blks is set to 0 in xfs_inode_alloc and can't have anything
assigned to it until the inode is visible to the VFS.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig 2d6051d496 xfs: call xfs_dinode_verify from xfs_inode_from_disk
Keep the code dealing with the dinode together, and also ensure we verify
the dinode in the owner change log recovery case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig 0bce8173fd xfs: handle unallocated inodes in xfs_inode_from_disk
Handle inodes with a 0 di_mode in xfs_inode_from_disk, instead of partially
duplicating inode reading in xfs_iread.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig 9229d18e80 xfs: split xfs_iformat_fork
xfs_iformat_fork is a weird catchall.  Split it into one helper for
the data fork and one for the attr fork, and then call both helper
as well as the COW fork initialization from xfs_inode_from_disk.  Order
the COW fork initialization after the attr fork initialization given
that it can't fail to simplify the error handling.

Note that the newly split helpers are moved down the file in
xfs_inode_fork.c to avoid the need for forward declarations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig cb7d585944 xfs: call xfs_iformat_fork from xfs_inode_from_disk
We always need to fill out the fork structures when reading the inode,
so call xfs_iformat_fork from the tail of xfs_inode_from_disk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Christoph Hellwig b90c2a9c8b xfs: xfs_bmapi_read doesn't take a fork id as the last argument
The last argument to xfs_bmapi_raad contains XFS_BMAPI_* flags, not the
fork.  Given that XFS_DATA_FORK evaluates to 0 no real harm is done,
but let's fix this anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
2020-05-19 09:40:57 -07:00
Kaixu Xia 14506f7a91 xfs: fix the warning message in xfs_validate_sb_common()
Fix this error message to complain about project and group quota flag
bits instead of "PUOTA" and "QUOTA".

Signed-off-by: Kaixu Xia <kaixuxia@tencent.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>
2020-05-19 09:40:56 -07:00
Darrick J. Wong 765d3c393c xfs: don't allow SWAPEXT if we'd screw up quota accounting
Since the old SWAPEXT ioctl doesn't know how to adjust quota ids,
bail out of the ids don't match and quotas are enabled.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-05-19 09:40:56 -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 f28cef9e4d xfs: don't fail verifier on empty attr3 leaf block
The attr fork can transition from shortform to leaf format while
empty if the first xattr doesn't fit in shortform. While this empty
leaf block state is intended to be transient, it is technically not
due to the transactional implementation of the xattr set operation.

We historically have a couple of bandaids to work around this
problem. The first is to hold the buffer after the format conversion
to prevent premature writeback of the empty leaf buffer and the
second is to bypass the xattr count check in the verifier during
recovery. The latter assumes that the xattr set is also in the log
and will be recovered into the buffer soon after the empty leaf
buffer is reconstructed. This is not guaranteed, however.

If the filesystem crashes after the format conversion but before the
xattr set that induced it, only the format conversion may exist in
the log. When recovered, this creates a latent corrupted state on
the inode as any subsequent attempts to read the buffer fail due to
verifier failure. This includes further attempts to set xattrs on
the inode or attempts to destroy the attr fork, which prevents the
inode from ever being removed from the unlinked list.

To avoid this condition, accept that an empty attr leaf block is a
valid state and remove the count check from the verifier. This means
that on rare occasions an attr fork might exist in an unexpected
state, but is otherwise consistent and functional. Note that we
retain the logic to avoid racing with metadata writeback to reduce
the window where this can occur.

Signed-off-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>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-05-19 09:05:24 -07:00
Nishad Kamdar 508578f2f5 xfs: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style in header files
related to XFS File System support. For C header files
Documentation/process/license-rules.rst mandates C-like comments.
(opposed to C source files where C++ style should be used).

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-13 15:32:45 -07:00
Gustavo A. R. Silva ee4064e56c xfs: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-13 15:32:45 -07:00
Zheng Bin 237aac4624 xfs: ensure f_bfree returned by statfs() is non-negative
Construct an img like this:

dd if=/dev/zero of=xfs.img bs=1M count=20
mkfs.xfs -d agcount=1 xfs.img
xfs_db -x xfs.img
sb 0
write fdblocks 0
agf 0
write freeblks 0
write longest 0
quit

mount it, df -h /mnt(xfs mount point), will show this:
Filesystem      Size  Used Avail Use% Mounted on
/dev/loop0       17M  -64Z  -32K 100% /mnt

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Bin <zhengbin13@huawei.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>
2020-05-13 15:32:45 -07:00
Chen Zhou 3d60548b21 xfs: remove duplicate headers
Remove duplicate headers which are included twice.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-08 08:51:34 -07:00
Brian Foster 43dc0aa84e xfs: fix unused variable warning in buffer completion on !DEBUG
The random buffer write failure errortag patch introduced a local
mount pointer variable for the test macro, but the macro is compiled
out on !DEBUG kernels. This results in an unused variable warning.

Access the mount structure through the buffer pointer and remove the
local mount pointer to address the warning.

Fixes: 7376d74547 ("xfs: random buffer write failure errortag")
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>
2020-05-08 08:50:52 -07:00
Darrick J. Wong 6ea670ade2 xfs: remove unnecessary includes from xfs_log_recover.c
Remove unnecessary includes from the log recovery code.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-05-08 08:50:01 -07:00
Darrick J. Wong 17d29bf271 xfs: move log recovery buffer cancellation code to xfs_buf_item_recover.c
Move the helpers that handle incore buffer cancellation records to
xfs_buf_item_recover.c since they're not directly related to the main
log recovery machinery.  No functional changes.

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>
2020-05-08 08:50:01 -07:00
Darrick J. Wong cc560a5a95 xfs: hoist setting of XFS_LI_RECOVERED to caller
The only purpose of XFS_LI_RECOVERED is to prevent log recovery from
trying to replay recovered intents more than once.  Therefore, we can
move the bit setting up to the ->iop_recover caller.

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>
2020-05-08 08:50:01 -07:00
Darrick J. Wong 96b60f8267 xfs: refactor intent item iop_recover calls
Now that we've made the recovered item tests all the same, we can hoist
the test and the ail locking code to the ->iop_recover caller and call
the recovery function directly.

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>
2020-05-08 08:50:01 -07:00
Darrick J. Wong 889eb55dd6 xfs: refactor intent item RECOVERED flag into the log item
Rename XFS_{EFI,BUI,RUI,CUI}_RECOVERED to XFS_LI_RECOVERED so that we
track recovery status in the log item, then get rid of the now unused
flags fields in each of those log item types.

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>
2020-05-08 08:50:01 -07:00
Darrick J. Wong 86a3717413 xfs: refactor adding recovered intent items to the log
During recovery, every intent that we recover from the log has to be
added to the AIL.  Replace the open-coded addition with a helper.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong 154c733a33 xfs: refactor releasing finished intents during log recovery
Replace the open-coded AIL item walking with a proper helper when we're
trying to release an intent item that has been finished.  We add a new
->iop_match method to decide if an intent item matches a supplied ID.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong bba7b1644a xfs: refactor xlog_item_is_intent now that we're done converting
Now that we've finished converting all types of log intent items to
provide an ->iop_recover function, we can convert the "is this an intent
item?" predicate to look for a non-null iop_recover pointer.

Move the predicate closer to the functions that use it.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong 9329ba89cb xfs: refactor recovered BUI log item playback
Move the code that processes the log items created from the recovered
log items into the per-item source code files and use dispatch functions
to call them.  No functional changes.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong c57ed2f5a2 xfs: refactor recovered CUI log item playback
Move the code that processes the log items created from the recovered
log items into the per-item source code files and use dispatch functions
to call them.  No functional changes.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong cba0ccac28 xfs: refactor recovered RUI log item playback
Move the code that processes the log items created from the recovered
log items into the per-item source code files and use dispatch functions
to call them.  No functional changes.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong 10d0c6e06f xfs: refactor recovered EFI log item playback
Move the code that processes the log items created from the recovered
log items into the per-item source code files and use dispatch functions
to call them.  No functional changes.

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>
2020-05-08 08:50:00 -07:00
Darrick J. Wong 2565a11b22 xfs: remove log recovery quotaoff item dispatch for pass2 commit functions
Quotaoff doesn't actually do anything, so take advantage of the
commit_pass2 pointer being optional and get rid of the switch
statement clause.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong 3c6ba3cf90 xfs: refactor log recovery BUI item dispatch for pass2 commit functions
Move the bmap update intent and intent-done pass2 commit code into the
per-item source code files and use dispatch functions to call them.  We
do these one at a time because there's a lot of code to move.  No
functional changes.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong 9b4467e983 xfs: refactor log recovery CUI item dispatch for pass2 commit functions
Move the refcount update intent and intent-done pass2 commit code into
the per-item source code files and use dispatch functions to call them.
We do these one at a time because there's a lot of code to move.  No
functional changes.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong 07590a9d38 xfs: refactor log recovery RUI item dispatch for pass2 commit functions
Move the rmap update intent and intent-done pass2 commit code into the
per-item source code files and use dispatch functions to call them.  We
do these one at a time because there's a lot of code to move.  No
functional changes.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong 9817aa80dc xfs: refactor log recovery EFI item dispatch for pass2 commit functions
Move the extent free intent and intent-done pass2 commit code into the
per-item source code files and use dispatch functions to call them.  We
do these one at a time because there's a lot of code to move.  No
functional changes.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong 3ec6efa703 xfs: refactor log recovery icreate item dispatch for pass2 commit functions
Move the log icreate item pass2 commit code into the per-item source code
files and use the dispatch function to call it.  We do these one at a
time because there's a lot of code to move.  No functional changes.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong fcbdf91e0c xfs: refactor log recovery dquot item dispatch for pass2 commit functions
Move the log dquot item pass2 commit code into the per-item source code
files and use the dispatch function to call it.  We do these one at a
time because there's a lot of code to move.  No functional changes.

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>
2020-05-08 08:49:59 -07:00
Darrick J. Wong 658fa68b6f xfs: refactor log recovery inode item dispatch for pass2 commit functions
Move the log inode item pass2 commit code into the per-item source code
files and use the dispatch function to call it.  We do these one at a
time because there's a lot of code to move.  No functional changes.

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>
2020-05-08 08:49:58 -07:00
Darrick J. Wong 1094d3f123 xfs: refactor log recovery buffer item dispatch for pass2 commit functions
Move the log buffer item pass2 commit code into the per-item source code
files and use the dispatch function to call it.  We do these one at a
time because there's a lot of code to move.  No functional changes.

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>
2020-05-08 08:49:58 -07:00