Darrick J. Wong a7a686cb07 xfs: cache a bunch of inodes for repair scans ... After observing xfs_scrub taking forever to rebuild parent pointers on a pptrs enabled filesystem, I decided to profile what the system was doing. It turns out that when there are a lot of threads trying to scan the filesystem, most of our time is spent contending on AGI buffer locks. Given that we're walking the inobt records anyway, we can often tell ahead of time when there's a bunch of (up to 64) consecutive inodes that we could grab all at once. Do this to amortize the cost of taking the AGI lock across as many inodes as we possibly can. On the author's system this seems to improve parallel throughput from barely one and a half cores to slightly sublinear scaling. The obvious antipattern here of course is where the freemask has every other bit set (e.g. all 0xA's) Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>		2024-02-22 12:30:47 -08:00
..
agb_bitmap.c	xfs: move the per-AG datatype bitmaps to separate files	2023-12-15 10:03:30 -08:00
agb_bitmap.h	xfs: move the per-AG datatype bitmaps to separate files	2023-12-15 10:03:30 -08:00
agheader_repair.c	xfs: roll the scrub transaction after completing a repair	2023-12-15 10:03:31 -08:00
agheader.c	xfs: teach scrub to check for sole ownership of metadata objects	2023-04-11 19:00:15 -07:00
alloc_repair.c	xfs: repair free space btrees	2023-12-15 10:03:32 -08:00
alloc.c	xfs: repair free space btrees	2023-12-15 10:03:32 -08:00
attr.c	xfs: remove struct xfs_attr_shortform	2023-12-29 13:37:05 +05:30
attr.h	xfs: check used space of shortform xattr structures	2023-04-11 19:00:33 -07:00
bitmap.c	xfs: move the per-AG datatype bitmaps to separate files	2023-12-15 10:03:30 -08:00
bitmap.h	xfs: move the per-AG datatype bitmaps to separate files	2023-12-15 10:03:30 -08:00
bmap_repair.c	xfs: repair the inode core and forks of a metadata inode	2023-12-15 10:03:42 -08:00
bmap.c	xfs: repair inode fork block mapping data structures	2023-12-15 10:03:39 -08:00
btree.c	xfs: teach scrub to check for sole ownership of metadata objects	2023-04-11 19:00:15 -07:00
btree.h	overflow: Add struct_size_t() helper	2023-05-26 13:52:19 -07:00
common.c	xfs: abort directory parent scrub scans if we encounter a zapped directory	2023-12-15 10:03:37 -08:00
common.h	xfs: repair inode fork block mapping data structures	2023-12-15 10:03:39 -08:00
cow_repair.c	xfs: convert remaining kmem_free() to kfree()	2024-02-13 18:07:34 +05:30
dabtree.c	xfs: scrub should use ECHRNG to signal that the drain is needed	2023-04-11 19:00:00 -07:00
dabtree.h	xfs: update copyright years for scrub/ files	2023-04-11 18:59:57 -07:00
dir.c	xfs: abort directory parent scrub scans if we encounter a zapped directory	2023-12-15 10:03:37 -08:00
dqiterate.c	xfs: improve dquot iteration for scrub	2023-12-15 10:03:45 -08:00
fsb_bitmap.h	xfs: reintroduce reaping of file metadata blocks to xrep_reap_extents	2023-12-15 10:03:38 -08:00
fscounters.c	xfs: move the xfs_rtbitmap.c declarations to xfs_rtbitmap.h	2023-10-17 16:24:22 -07:00
health.c	xfs/health: cleanup, remove duplicated including	2023-12-22 11:14:17 +05:30
health.h	xfs: set inode sick state flags when we zap either ondisk fork	2023-12-15 10:03:35 -08:00
ialloc_repair.c	xfs: disable sparse inode chunk alignment check when there is no alignment	2024-02-17 09:18:53 +05:30
ialloc.c	xfs: repair inode btrees	2023-12-15 10:03:32 -08:00
inode_repair.c	xfs: remove struct xfs_attr_shortform	2023-12-29 13:37:05 +05:30
inode.c	xfs: repair inode records	2023-12-15 10:03:36 -08:00
iscan.c	xfs: cache a bunch of inodes for repair scans	2024-02-22 12:30:47 -08:00
iscan.h	xfs: cache a bunch of inodes for repair scans	2024-02-22 12:30:47 -08:00
newbt.c	xfs: repair free space btrees	2023-12-15 10:03:32 -08:00
newbt.h	xfs: repair free space btrees	2023-12-15 10:03:32 -08:00
off_bitmap.h	xfs: repair problems in CoW forks	2023-12-15 10:03:40 -08:00
parent.c	xfs: abort directory parent scrub scans if we encounter a zapped directory	2023-12-15 10:03:37 -08:00
quota_repair.c	xfs: repair quotas	2023-12-15 10:03:45 -08:00
quota.c	xfs: repair quotas	2023-12-15 10:03:45 -08:00
quota.h	xfs: repair quotas	2023-12-15 10:03:45 -08:00
readdir.c	xfs: Replace xfs_isilocked with xfs_assert_ilocked	2024-02-19 21:19:33 +05:30
readdir.h	xfs: streamline the directory iteration code for scrub	2023-04-11 19:00:17 -07:00
reap.c	xfs: repair problems in CoW forks	2023-12-15 10:03:40 -08:00
reap.h	xfs: reintroduce reaping of file metadata blocks to xrep_reap_extents	2023-12-15 10:03:38 -08:00
refcount_repair.c	xfs: repair refcount btrees	2023-12-15 10:03:33 -08:00
refcount.c	xfs: repair refcount btrees	2023-12-15 10:03:33 -08:00
repair.c	xfs: repair the inode core and forks of a metadata inode	2023-12-15 10:03:42 -08:00
repair.h	xfs: repair quotas	2023-12-15 10:03:45 -08:00
rmap.c	xfs: move the per-AG datatype bitmaps to separate files	2023-12-15 10:03:30 -08:00
rtbitmap_repair.c	xfs: online repair of realtime bitmaps	2023-12-15 10:03:43 -08:00
rtbitmap.c	xfs: remove conditional building of rt geometry validator functions	2024-01-30 14:04:43 +05:30
rtbitmap.h	xfs: online repair of realtime bitmaps	2023-12-15 10:03:43 -08:00
rtsummary.c	xfs: remove the xfile_pread/pwrite APIs	2024-02-21 11:36:53 +05:30
scrub.c	xfs: repair quotas	2023-12-15 10:03:45 -08:00
scrub.h	xfs: repair inode btrees	2023-12-15 10:03:32 -08:00
stats.c	xfs: only call xchk_stats_merge after validating scrub inputs	2023-09-12 10:31:08 -07:00
stats.h	xfs: track usage statistics of online fsck	2023-08-10 07:48:07 -07:00
symlink.c	xfs: make if_data a void pointer	2023-12-29 13:37:03 +05:30
trace.c	xfs: implement live inode scan for scrub	2024-02-22 12:30:45 -08:00
trace.h	xfs: cache a bunch of inodes for repair scans	2024-02-22 12:30:47 -08:00
xfarray.c	xfs: convert xfarray_pagesort to deal with large folios	2024-02-21 11:36:55 +05:30
xfarray.h	xfs: convert xfarray_pagesort to deal with large folios	2024-02-21 11:36:55 +05:30
xfile.c	xfs: remove xfile_{get,put}_page	2024-02-21 11:36:56 +05:30
xfile.h	xfs: remove xfile_{get,put}_page	2024-02-21 11:36:56 +05:30
xfs_scrub.h	xfs: update copyright years for scrub/ files	2023-04-11 18:59:57 -07:00