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2020-10-07xfs: proper replay of deferred ops queued during log recoveryDarrick J. Wong2-8/+100
When we replay unfinished intent items that have been recovered from the log, it's possible that the replay will cause the creation of more deferred work items. As outlined in commit 509955823cc9c ("xfs: log recovery should replay deferred ops in order"), later work items have an implicit ordering dependency on earlier work items. Therefore, recovery must replay the items (both recovered and created) in the same order that they would have been during normal operation. For log recovery, we enforce this ordering by using an empty transaction to collect deferred ops that get created in the process of recovering a log intent item to prevent them from being committed before the rest of the recovered intent items. After we finish committing all the recovered log items, we allocate a transaction with an enormous block reservation, splice our huge list of created deferred ops into that transaction, and commit it, thereby finishing all those ops. This is /really/ hokey -- it's the one place in XFS where we allow nested transactions; the splicing of the defer ops list is is inelegant and has to be done twice per recovery function; and the broken way we handle inode pointers and block reservations cause subtle use-after-free and allocator problems that will be fixed by this patch and the two patches after it. Therefore, replace the hokey empty transaction with a structure designed to capture each chain of deferred ops that are created as part of recovering a single unfinished log intent. Finally, refactor the loop that replays those chains to do so using one transaction per chain. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-10-07xfs: remove xfs_defer_resetDarrick J. Wong1-19/+5
Remove this one-line helper since the assert is trivially true in one call site and the rest obscures a bitmask operation. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-25xfs: avoid shared rmap operations for attr fork extentsDarrick J. Wong1-9/+18
During code review, I noticed that the rmap code uses the (slower) shared mappings rmap functions for any extent of a reflinked file, even if those extents are for the attr fork, which doesn't support sharing. We can speed up rmap a tiny bit by optimizing out this case. 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>
2020-09-25xfs: code cleanup in xfs_attr_leaf_entsize_{remote,local}Kaixu Xia1-4/+4
Cleanup the typedef usage, the unnecessary parentheses, the unnecessary backslash and use the open-coded round_up call in xfs_attr_leaf_entsize_{remote,local}. Signed-off-by: Kaixu Xia <kaixuxia@tencent.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>
2020-09-25xfs: remove the redundant crc feature check in xfs_attr3_rmt_verifyKaixu Xia1-2/+0
We already check whether the crc feature is enabled before calling xfs_attr3_rmt_verify(), so remove the redundant feature check in that function. Signed-off-by: Kaixu Xia <kaixuxia@tencent.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>
2020-09-25xfs: fix some commentsKaixu Xia1-5/+5
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>
2020-09-25xfs: use the existing type definition for di_projidKaixu Xia1-1/+1
We have already defined the project ID type prid_t, so maybe should use it here. Signed-off-by: Kaixu Xia <kaixuxia@tencent.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>
2020-09-23xfs: log new intent items created as part of finishing recovered intent itemsDarrick J. Wong2-2/+30
During a code inspection, I found a serious bug in the log intent item recovery code when an intent item cannot complete all the work and decides to requeue itself to get that done. When this happens, the item recovery creates a new incore deferred op representing the remaining work and attaches it to the transaction that it allocated. At the end of _item_recover, it moves the entire chain of deferred ops to the dummy parent_tp that xlog_recover_process_intents passed to it, but fail to log a new intent item for the remaining work before committing the transaction for the single unit of work. xlog_finish_defer_ops logs those new intent items once recovery has finished dealing with the intent items that it recovered, but this isn't sufficient. If the log is forced to disk after a recovered log item decides to requeue itself and the system goes down before we call xlog_finish_defer_ops, the second log recovery will never see the new intent item and therefore has no idea that there was more work to do. It will finish recovery leaving the filesystem in a corrupted state. The same logic applies to /any/ deferred ops added during intent item recovery, not just the one handling the remaining work. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-23xfs: don't free rt blocks when we're doing a REMAP bunmapi callDarrick J. Wong1-7/+12
When callers pass XFS_BMAPI_REMAP into xfs_bunmapi, they want the extent to be unmapped from the given file fork without the extent being freed. We do this for non-rt files, but we forgot to do this for realtime files. So far this isn't a big deal since nobody makes a bunmapi call to a rt file with the REMAP flag set, but don't leave a logic bomb. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: Convert xfs_attr_sf macros to inline functionsCarlos Maiolino3-23/+39
xfs_attr_sf_totsize() requires access to xfs_inode structure, so, once xfs_attr_shortform_addname() is its only user, move it to xfs_attr.c instead of playing with more #includes. Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-16xfs: Use variable-size array for nameval in xfs_attr_sf_entryCarlos Maiolino3-7/+6
nameval is a variable-size array, so, define it as it, and remove all the -1 magic number subtractions 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>
2020-09-16xfs: Remove typedef xfs_attr_shortform_tCarlos Maiolino2-10/+10
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-16xfs: remove typedef xfs_attr_sf_entry_tCarlos Maiolino2-7/+8
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-16xfs: enable big timestampsDarrick J. Wong1-1/+2
Enable the big timestamp feature. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Gao Xiang <hsiangkao@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: widen ondisk quota expiration timestamps to handle y2038+Darrick J. Wong3-4/+70
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>
2020-09-16xfs: widen ondisk inode timestamps to deal with y2038+Darrick J. Wong8-10/+134
Redesign the ondisk inode timestamps to be a simple unsigned 64-bit counter of nanoseconds since 14 Dec 1901 (i.e. the minimum time in the 32-bit unix time epoch). This enables us to handle dates up to 2486, which solves the y2038 problem. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Gao Xiang <hsiangkao@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: redefine xfs_ictimestamp_tDarrick J. Wong1-2/+5
Redefine xfs_ictimestamp_t as a uint64_t typedef in preparation for the bigtime functionality. Preserve the legacy structure format so that we can let the compiler take care of the masking and shifting. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Gao Xiang <hsiangkao@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: redefine xfs_timestamp_tDarrick J. Wong3-19/+47
Redefine xfs_timestamp_t as a __be64 typedef in preparation for the bigtime functionality. Preserve the legacy structure format so that we can let the compiler take care of masking and shifting. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Gao Xiang <hsiangkao@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: move xfs_log_dinode_to_disk to the log recovery codeDarrick J. Wong2-54/+0
Move this function to xfs_inode_item_recover.c since there's only one caller of it. 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: Gao Xiang <hsiangkao@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: refactor quota timestamp codingDarrick J. Wong2-0/+23
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>
2020-09-16xfs: refactor default quota grace period setting codeDarrick J. Wong1-0/+13
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>
2020-09-16xfs: refactor quota expiration timer modificationDarrick J. Wong1-0/+24
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>
2020-09-16xfs: explicitly define inode timestamp rangeDarrick J. Wong1-0/+22
Formally define the inode timestamp ranges that existing filesystems support, and switch the vfs timetamp ranges to use it. 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: Gao Xiang <hsiangkao@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-16xfs: enable new inode btree counters featureDarrick J. Wong1-1/+2
Enable the new inode btree counters feature. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-16xfs: support inode btree blockcounts in online repairDarrick J. Wong1-3/+13
Add the necessary bits to the online repair code to support logging the inode btree counters when rebuilding the btrees, and to support fixing the counters when rebuilding the AGI. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-16xfs: use the finobt block counts to speed up mount timesDarrick J. Wong1-1/+27
Now that we have reliable finobt block counts, use them to speed up the per-AG block reservation calculations at mount time. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-16xfs: store inode btree block counts in AGI headerDarrick J. Wong4-1/+44
Add a btree block usage counters for both inode btrees to the AGI header so that we don't have to walk the entire finobt at mount time to create the per-AG reservations. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-16xfs: simplify xfs_trans_getsbChristoph Hellwig1-2/+2
Remove the mp argument as this function is only called in transaction context, and open code xfs_getsb given that the function already accesses the buffer pointer in the mount point directly. 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>
2020-09-16xfs: remove xlog_recover_iodoneChristoph Hellwig1-1/+0
The log recovery I/O completion handler does not substancially differ from the normal one except for the fact that it: a) never retries failed writes b) can have log items that aren't on the AIL c) never has inode/dquot log items attached and thus don't need to handle them Add conditionals for (a) and (b) to the ioend code, while (c) doesn't need special handling anyway. 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>
2020-09-16xfs: move the buffer retry logic to xfs_buf.cChristoph Hellwig1-3/+3
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>
2020-09-07xfs: remove kmem_realloc()Carlos Maiolino2-5/+5
Remove kmem_realloc() function and convert its users to use MM API directly (krealloc()) Signed-off-by: Carlos Maiolino <cmaiolino@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>
2020-09-05Merge tag 'xfs-5.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds1-1/+1
Pull xfs fix from Darrick Wong: "Fix a broken metadata verifier that would incorrectly validate attr fork extents of a realtime file against the realtime volume" * tag 'xfs-5.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: fix xfs_bmap_validate_extent_raw when checking attr fork of rt files
2020-09-03xfs: fix xfs_bmap_validate_extent_raw when checking attr fork of rt filesDarrick J. Wong1-1/+1
The realtime flag only applies to the data fork, so don't use the realtime block number checks on the attr fork of a realtime file. Fixes: 30b0984d9117 ("xfs: refactor bmap record validation") Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com>
2020-09-02Merge tag 'xfs-5.9-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds3-6/+8
Pull xfs fixes from Darrick Wong: "Various small corruption fixes that have come in during the past month: - Avoid a log recovery failure for an insert range operation by rolling deferred ops incrementally instead of at the end. - Fix an off-by-one error when calculating log space reservations for anything involving an inode allocation or free. - Fix a broken shortform xattr verifier. - Ensure that the shortform xattr header padding is always initialized to zero" * tag 'xfs-5.9-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: initialize the shortform attr header padding entry xfs: fix boundary test in xfs_attr_shortform_verify xfs: fix off-by-one in inode alloc block reservation calculation xfs: finish dfops on every insert range shift iteration
2020-08-28Merge tag 'writeback_for_v5.9-rc3' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull writeback fixes from Jan Kara: "Fixes for writeback code occasionally skipping writeback of some inodes or livelocking sync(2)" * tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: writeback: Drop I_DIRTY_TIME_EXPIRE writeback: Fix sync livelock due to b_dirty_time processing writeback: Avoid skipping inode writeback writeback: Protect inode->i_io_list with inode->i_lock
2020-08-27xfs: initialize the shortform attr header padding entryDarrick J. Wong1-2/+2
Don't leak kernel memory contents into the shortform attr fork. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-08-27xfs: fix boundary test in xfs_attr_shortform_verifyEric Sandeen1-1/+3
The boundary test for the fixed-offset parts of xfs_attr_sf_entry in xfs_attr_shortform_verify is off by one, because the variable array at the end is defined as nameval[1] not nameval[]. Hence we need to subtract 1 from the calculation. This can be shown by: # touch file # setfattr -n root.a file and verifications will fail when it's written to disk. This only matters for a last attribute which has a single-byte name and no value, otherwise the combination of namelen & valuelen will push endp further out and this test won't fail. Fixes: 1e1bbd8e7ee06 ("xfs: create structure verifier function for shortform xattrs") Signed-off-by: Eric Sandeen <sandeen@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>
2020-08-27xfs: fix off-by-one in inode alloc block reservation calculationBrian Foster2-3/+3
The inode chunk allocation transaction reserves inobt_maxlevels-1 blocks to accommodate a full split of the inode btree. A full split requires an allocation for every existing level and a new root block, which means inobt_maxlevels is the worst case block requirement for a transaction that inserts to the inobt. This can lead to a transaction block reservation overrun when tmpfile creation allocates an inode chunk and expands the inobt to its maximum depth. This problem has been observed in conjunction with overlayfs, which makes frequent use of tmpfiles internally. The existing reservation code goes back as far as the Linux git repo history (v2.6.12). It was likely never observed as a problem because the traditional file/directory creation transactions also include worst case block reservation for directory modifications, which most likely is able to make up for a single block deficiency in the inode allocation portion of the calculation. tmpfile support is relatively more recent (v3.15), less heavily used, and only includes the inode allocation block reservation as tmpfiles aren't linked into the directory tree on creation. Fix up the inode alloc block reservation macro and a couple of the block allocator minleft parameters that enforce an allocation to leave enough free blocks in the AG for a full inobt split. 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>
2020-08-05xfs: delete duplicated words + other fixesRandy Dunlap1-1/+1
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>
2020-07-29xfs: Lift -ENOSPC handler from xfs_attr_leaf_addnameAllison Collins1-14/+11
Lift -ENOSPC handler from xfs_attr_leaf_addname. This will help to reorganize transitions between the attr forms later. Signed-off-by: Allison Collins <allison.henderson@oracle.com> 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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Simplify xfs_attr_node_addnameAllison Collins1-63/+59
Invert the rename logic in xfs_attr_node_addname to simplify the delayed attr logic later. Signed-off-by: Allison Collins <allison.henderson@oracle.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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Simplify xfs_attr_leaf_addnameAllison Collins1-52/+55
Invert the rename logic in xfs_attr_leaf_addname to simplify the delayed attr logic later. Signed-off-by: Allison Collins <allison.henderson@oracle.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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Add helper function xfs_attr_node_removename_rmtAllison Collins1-9/+19
This patch adds another new helper function xfs_attr_node_removename_rmt. This will also help modularize xfs_attr_node_removename when we add delay ready attributes later. Signed-off-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Add helper function xfs_attr_node_removename_setupAllison Collins1-13/+33
This patch adds a new helper function xfs_attr_node_removename_setup. This will help modularize xfs_attr_node_removename when we add delay ready attributes later. Signed-off-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> [darrick: fix unused variable complaints by 0day robot] Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Acked-by: Dave Chinner <dchinner@redhat.com> Reported-by: kernel test robot <lkp@intel.com>
2020-07-29xfs: Add remote block helper functionsAllison Collins1-20/+30
This patch adds two new helper functions xfs_attr_store_rmt_blk and xfs_attr_restore_rmt_blk. These two helpers assist to remove redundant code associated with storing and retrieving remote blocks during the attr set operations. Signed-off-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> Reviewed-by: Amir Goldstein <amir73il@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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Add helper function xfs_attr_leaf_mark_incompleteAllison Collins1-14/+27
This patch helps to simplify xfs_attr_node_removename by modularizing the code around the transactions into helper functions. This will make the function easier to follow when we introduce delayed attributes. Signed-off-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Chandan Rajendra <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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Add helpers xfs_attr_is_shortform and xfs_attr_set_shortformAllison Collins1-35/+72
In this patch, we hoist code from xfs_attr_set_args into two new helpers xfs_attr_is_shortform and xfs_attr_set_shortform. These two will help to simplify xfs_attr_set_args when we get into delayed attrs later. Signed-off-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Remove xfs_trans_roll in xfs_attr_node_removenameAllison Collins1-4/+0
A transaction roll is not necessary immediately after setting the INCOMPLETE flag when removing a node xattr entry with remote value blocks. The remote block invalidation that immediately follows setting the flag is an in-core only change. The next step after that is to start unmapping the remote blocks from the attr fork, but the xattr remove transaction reservation includes reservation for full tree splits of the dabtree and bmap tree. The remote block unmap code will roll the transaction as extents are unmapped and freed. Signed-off-by: Allison Collins <allison.henderson@oracle.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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Remove unneeded xfs_trans_roll_inode callsAllison Collins1-54/+7
Some calls to xfs_trans_roll_inode and xfs_defer_finish routines are not needed. If they are the last operations executed in these functions, and no further changes are made, then higher level routines will roll or commit the transactions. Signed-off-by: Allison Collins <allison.henderson@oracle.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> Acked-by: Dave Chinner <dchinner@redhat.com>
2020-07-29xfs: Add helper function xfs_attr_node_shrinkAllison Collins1-26/+42
This patch adds a new helper function xfs_attr_node_shrink used to shrink an attr name into an inode if it is small enough. This helps to modularize the greater calling function xfs_attr_node_removename. Signed-off-by: Allison Collins <allison.henderson@oracle.com> 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> Acked-by: Dave Chinner <dchinner@redhat.com>
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