Brian Foster
2032a8a27b
xfs: serialize unaligned dio writes against all other dio writes ...
XFS applies more strict serialization constraints to unaligned
direct writes to accommodate things like direct I/O layer zeroing,
unwritten extent conversion, etc. Unaligned submissions acquire the
exclusive iolock and wait for in-flight dio to complete to ensure
multiple submissions do not race on the same block and cause data
corruption.
This generally works in the case of an aligned dio followed by an
unaligned dio, but the serialization is lost if I/Os occur in the
opposite order. If an unaligned write is submitted first and
immediately followed by an overlapping, aligned write, the latter
submits without the typical unaligned serialization barriers because
there is no indication of an unaligned dio still in-flight. This can
lead to unpredictable results.
To provide proper unaligned dio serialization, require that such
direct writes are always the only dio allowed in-flight at one time
for a particular inode. We already acquire the exclusive iolock and
drain pending dio before submitting the unaligned dio. Wait once
more after the dio submission to hold the iolock across the I/O and
prevent further submissions until the unaligned I/O completes. This
is heavy handed, but consistent with the current pre-submission
serialization for unaligned direct writes.
Signed-off-by: Brian Foster <[email protected] >
Reviewed-by: Allison Henderson <[email protected] >
Reviewed-by: Dave Chinner <[email protected] >
Reviewed-by: Darrick J. Wong <[email protected] >
Signed-off-by: Darrick J. Wong <[email protected] >
2019-03-26 08:37:55 -07:00
xfs: always init bma in xfs_bmapi_write
2019-03-19 08:16:54 -07:00
xfs: fix btree scrub checking with regards to root-in-inode
2019-03-19 08:16:41 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: move the repair extent list into its own file
2018-07-29 22:37:09 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: remove b_last_holder & associated macros
2018-08-12 08:37:31 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
for-5.1/block-20190302
2019-03-08 14:12:17 -08:00
xfs: remove the io_type field from the writeback context and ioend
2019-02-17 11:55:53 -08:00
xfs: remove all boilerplate defer init/finish code
2018-07-26 10:15:15 -07:00
xfs: don't overflow xattr listent buffer
2019-02-14 09:36:52 -08:00
xfs: pass transaction to xfs_defer_add()
2018-08-02 23:05:14 -07:00
xfs: use transaction for intent recovery instead of raw dfops
2018-08-02 23:05:13 -07:00
xfs: introduce an always_cow mode
2019-02-21 07:55:07 -08:00
xfs: flush removing page cache in xfs_reflink_remap_prep
2018-11-21 10:10:53 -08:00
xfs: fix xfs_buf magic number endian checks
2019-02-18 09:38:41 -08:00
xfs: fix xfs_buf magic number endian checks
2019-02-18 09:38:41 -08:00
xfs: fix transient reference count error in xfs_buf_resubmit_failed_buffers
2018-11-20 10:36:01 -08:00
xfs: refactor xfs_buf_log_item reference count handling
2018-09-29 13:45:26 +10:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: prohibit fstrim in norecovery mode
2019-03-25 08:03:29 -07:00
xfs: remove dead error handling code in xfs_dquot_disk_alloc()
2018-08-07 10:57:13 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: cache unlinked pointers in an rhashtable
2019-02-11 16:07:01 -08:00
xfs: Introduce XFS_PTAG_VERIFIER_ERROR panic mask
2019-02-11 16:07:00 -08:00
xfs: clean up IRELE/iput callsites
2018-07-26 10:15:16 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: remove xfs_rmap_ag_owner and friends
2018-12-12 08:47:16 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: serialize unaligned dio writes against all other dio writes
2019-03-26 08:37:55 -07:00
xfs: replace dop_low with transaction flag
2018-08-02 23:05:13 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: trivial xfs_btree_del_cursor cleanups
2018-07-23 09:08:00 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: reserve blocks for ifree transaction during log recovery
2019-02-14 22:42:57 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: Introduce XFS_PTAG_VERIFIER_ERROR panic mask
2019-02-11 16:07:00 -08:00
xfs: introduce a new xfs_inode_has_cow_data helper
2018-07-30 07:57:48 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: don't ever put nlink > 0 inodes on the unlinked list
2019-02-14 22:42:57 -08:00
xfs: cache unlinked pointers in an rhashtable
2019-02-11 16:07:01 -08:00
xfs: remove if_real_bytes
2018-07-30 07:57:48 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: Fix error code in 'xfs_ioc_getbmap()'
2018-11-06 07:50:50 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: Fix x32 ioctls when cmd numbers differ from ia32.
2018-12-18 10:55:21 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: rework breaking of shared extents in xfs_file_iomap_begin
2019-02-25 09:26:18 -08:00
xfs: fix SEEK_DATA for speculative COW fork preallocation
2019-02-21 07:55:07 -08:00
xfs: fix reporting supported extra file attributes for statx()
2019-03-01 08:57:25 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: precalculate inodes and blocks per inode cluster
2018-12-12 08:47:17 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: replace do_mod with native operations
2018-06-08 10:07:52 -07:00
xfs: fix a comment in xfs_log_reserve
2018-08-03 08:17:54 -07:00
xfs: refactor log recovery check
2018-08-01 07:40:48 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: fix xfs_buf magic number endian checks
2019-02-18 09:38:41 -08:00
xfs: print buffer offsets when dumping corrupt buffers
2018-11-06 07:50:50 -08:00
xfs: cache unlinked pointers in an rhashtable
2019-02-11 16:07:01 -08:00
xfs: introduce an always_cow mode
2019-02-21 07:55:07 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: compile time offset checks for common v4/v5 metadata
2019-02-11 16:07:01 -08:00
xfs: make xfs_bmbt_to_iomap more useful
2019-02-21 07:55:07 -08:00
xfs: prepare xfs_break_layouts() for another layout type
2018-05-22 07:19:08 -07:00
xfs: clean up IRELE/iput callsites
2018-07-26 10:15:16 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
fs/xfs: fix f_ffree value for statfs when project quota is set
2018-11-26 15:01:37 -08:00
xfs: clean up IRELE/iput callsites
2018-07-26 10:15:16 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: clean up IRELE/iput callsites
2018-07-26 10:15:16 -07:00
xfs: pass transaction to xfs_defer_add()
2018-08-02 23:05:14 -07:00
xfs: use transaction for intent recovery instead of raw dfops
2018-08-02 23:05:13 -07:00
xfs: fix uninitialized error variables
2019-02-25 10:16:41 -08:00
xfs: don't pass iomap flags to xfs_reflink_allocate_cow
2019-02-25 09:04:31 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: reallocate realtime summary cache on growfs
2018-12-21 18:45:18 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: use offsetof() in place of offset macros for __xfsstats
2018-10-18 17:21:39 +11:00
xfs: use offsetof() in place of offset macros for __xfsstats
2018-10-18 17:21:39 +11:00
xfs: introduce an always_cow mode
2019-02-21 07:55:07 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: zero length symlinks are not valid
2018-12-12 08:47:15 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: introduce an always_cow mode
2019-02-21 07:55:07 -08:00
xfs: introduce an always_cow mode
2019-02-21 07:55:07 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: merge COW handling into xfs_file_iomap_begin_delay
2019-02-21 07:55:07 -08:00
xfs: avoid lockdep false positives in xfs_trans_alloc
2018-09-29 13:46:21 +10:00
xfs: const-ify xfs_owner_info arguments
2018-12-12 08:47:16 -08:00
xfs: clear ail delwri queued bufs on unmount of shutdown fs
2018-10-18 17:21:49 +11:00
xfs: remove duplicated xfs_defer.h
2019-02-11 16:07:00 -08:00
xfs: clarify documentation for the function to reverify buffers
2019-02-11 16:07:01 -08:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: remove duplicated xfs_defer.h
2019-02-11 16:07:00 -08:00
vfs/y2038: inode timestamps conversion to timespec64
2018-06-15 07:31:07 +09:00
xfs: convert to SPDX license tags
2018-06-06 14:17:53 -07:00
xfs: remove duplicated xfs_defer.h
2019-02-11 16:07:00 -08:00
xfs: remove duplicated xfs_defer.h
2019-02-11 16:07:00 -08:00
xfs: don't overflow xattr listent buffer
2019-02-14 09:36:52 -08:00
2032a8a27b