Darrick J. Wong 3994fc4895 xfs: merge adjacent io completions of the same type ... It's possible for pagecache writeback to split up a large amount of work into smaller pieces for throttling purposes or to reduce the amount of time a writeback operation is pending. Whatever the reason, XFS can end up with a bunch of IO completions that call for the same operation to be performed on a contiguous extent mapping. Since mappings are extent based in XFS, we'd prefer to run fewer transactions when we can. When we're processing an ioend on the list of io completions, check to see if the next items on the list are both adjacent and of the same type. If so, we can merge the completions to reduce transaction overhead. On fast storage this doesn't seem to make much of a difference in performance, though the number of transactions for an overnight xfstests run seems to drop by ~5%. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>		2019-04-16 10:01:58 -07:00
..
libxfs	xfs: report inode health via bulkstat	2019-04-14 18:15:58 -07:00
scrub	xfs: scrub should only cross-reference with healthy btrees	2019-04-16 10:01:57 -07:00
Kconfig
kmem.c
kmem.h
Makefile	xfs: scrub/repair should update filesystem metadata health	2019-04-16 10:01:57 -07:00
mrlock.h
xfs.h	xfs: remove b_last_holder & associated macros	2018-08-12 08:37:31 -07:00
xfs_acl.c
xfs_acl.h
xfs_aops.c	xfs: merge adjacent io completions of the same type	2019-04-16 10:01:58 -07:00
xfs_aops.h	xfs: implement per-inode writeback completion queues	2019-04-16 10:01:57 -07:00
xfs_attr_inactive.c	xfs: remove all boilerplate defer init/finish code	2018-07-26 10:15:15 -07:00
xfs_attr_list.c	xfs: don't overflow xattr listent buffer	2019-02-14 09:36:52 -08:00
xfs_bmap_item.c	xfs: pass transaction to xfs_defer_add()	2018-08-02 23:05:14 -07:00
xfs_bmap_item.h	xfs: use transaction for intent recovery instead of raw dfops	2018-08-02 23:05:13 -07:00
xfs_bmap_util.c	xfs: introduce an always_cow mode	2019-02-21 07:55:07 -08:00
xfs_bmap_util.h	xfs: flush removing page cache in xfs_reflink_remap_prep	2018-11-21 10:10:53 -08:00
xfs_buf.c	xfs: fix xfs_buf magic number endian checks	2019-02-18 09:38:41 -08:00
xfs_buf.h	xfs: fix xfs_buf magic number endian checks	2019-02-18 09:38:41 -08:00
xfs_buf_item.c	xfs: fix use after free in buf log item unlock assert	2019-04-14 18:15:56 -07:00
xfs_buf_item.h	xfs: refactor xfs_buf_log_item reference count handling	2018-09-29 13:45:26 +10:00
xfs_dir2_readdir.c
xfs_discard.c	xfs,fstrim: fix to return correct minlen	2019-04-14 18:15:57 -07:00
xfs_discard.h
xfs_dquot.c	xfs: remove dead error handling code in xfs_dquot_disk_alloc()	2018-08-07 10:57:13 -07:00
xfs_dquot.h
xfs_dquot_item.c
xfs_dquot_item.h
xfs_error.c	xfs: cache unlinked pointers in an rhashtable	2019-02-11 16:07:01 -08:00
xfs_error.h	xfs: Introduce XFS_PTAG_VERIFIER_ERROR panic mask	2019-02-11 16:07:00 -08:00
xfs_export.c	xfs: clean up IRELE/iput callsites	2018-07-26 10:15:16 -07:00
xfs_export.h
xfs_extent_busy.c
xfs_extent_busy.h
xfs_extfree_item.c	xfs: remove xfs_rmap_ag_owner and friends	2018-12-12 08:47:16 -08:00
xfs_extfree_item.h
xfs_file.c	xfs: serialize unaligned dio writes against all other dio writes	2019-03-26 08:37:55 -07:00
xfs_filestream.c	xfs: replace dop_low with transaction flag	2018-08-02 23:05:13 -07:00
xfs_filestream.h
xfs_fsmap.c	xfs: trivial xfs_btree_del_cursor cleanups	2018-07-23 09:08:00 -07:00
xfs_fsmap.h
xfs_fsops.c	xfs: reserve blocks for ifree transaction during log recovery	2019-02-14 22:42:57 -08:00
xfs_fsops.h
xfs_globals.c	xfs: Introduce XFS_PTAG_VERIFIER_ERROR panic mask	2019-02-11 16:07:00 -08:00
xfs_health.c	xfs: report inode health via bulkstat	2019-04-14 18:15:58 -07:00
xfs_icache.c	xfs: implement per-inode writeback completion queues	2019-04-16 10:01:57 -07:00
xfs_icache.h
xfs_icreate_item.c
xfs_icreate_item.h
xfs_inode.c	xfs: shutdown after buf release in iflush cluster abort path	2019-04-14 18:15:56 -07:00
xfs_inode.h	xfs: implement per-inode writeback completion queues	2019-04-16 10:01:57 -07:00
xfs_inode_item.c	xfs: remove if_real_bytes	2018-07-30 07:57:48 -07:00
xfs_inode_item.h
xfs_ioctl.c	xfs: report fs and rt health via geometry structure	2019-04-14 18:15:57 -07:00
xfs_ioctl.h
xfs_ioctl32.c	xfs: add a new ioctl to describe allocation group geometry	2019-04-14 18:15:57 -07:00
xfs_ioctl32.h
xfs_iomap.c	xfs: rework breaking of shared extents in xfs_file_iomap_begin	2019-02-25 09:26:18 -08:00
xfs_iomap.h	xfs: fix SEEK_DATA for speculative COW fork preallocation	2019-02-21 07:55:07 -08:00
xfs_iops.c	xfs: fix reporting supported extra file attributes for statx()	2019-03-01 08:57:25 -08:00
xfs_iops.h
xfs_itable.c	xfs: report inode health via bulkstat	2019-04-14 18:15:58 -07:00
xfs_itable.h
xfs_linux.h
xfs_log.c	xfs: replace the BAD_SUMMARY mount flag with the equivalent health code	2019-04-14 18:15:57 -07:00
xfs_log.h	xfs: refactor log recovery check	2018-08-01 07:40:48 -07:00
xfs_log_cil.c	xfs: wake commit waiters on CIL abort before log item abort	2019-04-14 18:15:56 -07:00
xfs_log_priv.h
xfs_log_recover.c	xfs: fix xfs_buf magic number endian checks	2019-02-18 09:38:41 -08:00
xfs_message.c	xfs: print buffer offsets when dumping corrupt buffers	2018-11-06 07:50:50 -08:00
xfs_message.h
xfs_mount.c	xfs: clear BAD_SUMMARY if unmounting an unhealthy filesystem	2019-04-14 18:15:57 -07:00
xfs_mount.h	xfs: remove unused m_data_workqueue	2019-04-16 10:01:58 -07:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_ondisk.h	xfs: compile time offset checks for common v4/v5 metadata	2019-02-11 16:07:01 -08:00
xfs_pnfs.c	xfs: make xfs_bmbt_to_iomap more useful	2019-02-21 07:55:07 -08:00
xfs_pnfs.h
xfs_qm.c	xfs: clean up IRELE/iput callsites	2018-07-26 10:15:16 -07:00
xfs_qm.h
xfs_qm_bhv.c	fs/xfs: fix f_ffree value for statfs when project quota is set	2018-11-26 15:01:37 -08:00
xfs_qm_syscalls.c	xfs: clean up IRELE/iput callsites	2018-07-26 10:15:16 -07:00
xfs_quota.h
xfs_quotaops.c	xfs: clean up IRELE/iput callsites	2018-07-26 10:15:16 -07:00
xfs_refcount_item.c	xfs: pass transaction to xfs_defer_add()	2018-08-02 23:05:14 -07:00
xfs_refcount_item.h	xfs: use transaction for intent recovery instead of raw dfops	2018-08-02 23:05:13 -07:00
xfs_reflink.c	xfs: fix uninitialized error variables	2019-02-25 10:16:41 -08:00
xfs_reflink.h	xfs: don't pass iomap flags to xfs_reflink_allocate_cow	2019-02-25 09:04:31 -08:00
xfs_rmap_item.c
xfs_rmap_item.h
xfs_rtalloc.c	xfs: reallocate realtime summary cache on growfs	2018-12-21 18:45:18 -08:00
xfs_rtalloc.h
xfs_stats.c	xfs: use offsetof() in place of offset macros for __xfsstats	2018-10-18 17:21:39 +11:00
xfs_stats.h	xfs: use offsetof() in place of offset macros for __xfsstats	2018-10-18 17:21:39 +11:00
xfs_super.c	xfs: remove unused m_data_workqueue	2019-04-16 10:01:58 -07:00
xfs_super.h
xfs_symlink.c	xfs: zero length symlinks are not valid	2018-12-12 08:47:15 -08:00
xfs_symlink.h
xfs_sysctl.c
xfs_sysctl.h	xfs: introduce an always_cow mode	2019-02-21 07:55:07 -08:00
xfs_sysfs.c	xfs: introduce an always_cow mode	2019-02-21 07:55:07 -08:00
xfs_sysfs.h
xfs_trace.c
xfs_trace.h	xfs: clear BAD_SUMMARY if unmounting an unhealthy filesystem	2019-04-14 18:15:57 -07:00
xfs_trans.c	xfs: avoid lockdep false positives in xfs_trans_alloc	2018-09-29 13:46:21 +10:00
xfs_trans.h	xfs: const-ify xfs_owner_info arguments	2018-12-12 08:47:16 -08:00
xfs_trans_ail.c	xfs: clear ail delwri queued bufs on unmount of shutdown fs	2018-10-18 17:21:49 +11:00
xfs_trans_bmap.c	xfs: remove duplicated xfs_defer.h	2019-02-11 16:07:00 -08:00
xfs_trans_buf.c	xfs: clarify documentation for the function to reverify buffers	2019-02-11 16:07:01 -08:00
xfs_trans_dquot.c
xfs_trans_extfree.c	xfs: remove duplicated xfs_defer.h	2019-02-11 16:07:00 -08:00
xfs_trans_inode.c
xfs_trans_priv.h
xfs_trans_refcount.c	xfs: remove duplicated xfs_defer.h	2019-02-11 16:07:00 -08:00
xfs_trans_rmap.c	xfs: remove duplicated xfs_defer.h	2019-02-11 16:07:00 -08:00
xfs_xattr.c	xfs: don't overflow xattr listent buffer	2019-02-14 09:36:52 -08:00