Omar Sandoval c44245b3d5 xfs: fix inobt inode allocation search optimization ... When we try to allocate a free inode by searching the inobt, we try to find the inode nearest the parent inode by searching chunks both left and right of the chunk containing the parent. As an optimization, we cache the leftmost and rightmost records that we previously searched; if we do another allocation with the same parent inode, we'll pick up the search where it last left off. There's a bug in the case where we found a free inode to the left of the parent's chunk: we need to update the cached left and right records, but because we already reassigned the right record to point to the left, we end up assigning the left record to both the cached left and right records. This isn't a correctness problem strictly, but it can result in the next allocation rechecking chunks unnecessarily or allocating inodes further away from the parent than it needs to. Fix it by swapping the record pointer after we update the cached left and right records. Fixes: bd16956599 ("xfs: speed up free inode search") Signed-off-by: Omar Sandoval <osandov@fb.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>		2017-08-11 16:56:33 -07:00
..
xfs_ag_resv.c	xfs: remove unneeded parameter from XFS_TEST_ERROR	2017-06-27 18:23:20 -07:00
xfs_ag_resv.h	xfs: set up per-AG free space reservations	2016-09-19 10:30:52 +10:00
xfs_alloc_btree.c	xfs: always compile the btree inorder check functions	2017-06-19 14:11:33 -07:00
xfs_alloc_btree.h
xfs_alloc.c	xfs: remove unneeded parameter from XFS_TEST_ERROR	2017-06-27 18:23:20 -07:00
xfs_alloc.h	xfs: export various function for the online scrubber	2017-06-19 14:11:34 -07:00
xfs_attr_leaf.c	xfs: don't crash on unexpected holes in dir/attr btrees	2017-07-07 18:55:17 -07:00
xfs_attr_leaf.h	Merge branch 'xfs-4.10-misc-fixes-3' into for-next	2016-12-07 17:42:30 +11:00
xfs_attr_remote.c	xfs: pass along transaction context when reading xattr block buffers	2017-06-20 10:45:22 -07:00
xfs_attr_remote.h
xfs_attr_sf.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_attr.c	xfs: fixup xfs_attr_get_ilocked	2017-07-13 14:55:05 -07:00
xfs_bit.c	libxfs: Optimize the loop for xfs_bitmap_empty	2016-01-04 16:10:19 +11:00
xfs_bit.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_bmap_btree.c	xfs: plumb in needed functions for range querying of various btrees	2017-06-19 14:11:34 -07:00
xfs_bmap_btree.h	xfs: simplify validation of the unwritten extent bit	2017-04-25 09:40:41 -07:00
xfs_bmap.c	xfs: fix multi-AG deadlock in xfs_bunmapi	2017-07-26 08:20:03 -07:00
xfs_bmap.h	xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent	2017-06-19 08:59:10 -07:00
xfs_btree.c	xfs: check _btree_check_block value	2017-07-20 14:42:32 -07:00
xfs_btree.h	xfs: export various function for the online scrubber	2017-06-19 14:11:34 -07:00
xfs_cksum.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_da_btree.c	xfs: don't crash on unexpected holes in dir/attr btrees	2017-07-07 18:55:17 -07:00
xfs_da_btree.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_da_format.c	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_da_format.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_defer.c	xfs: defer should abort intent items if the trans roll fails	2016-10-24 14:21:18 +11:00
xfs_defer.h	xfs: implement deferred bmbt map/unmap operations	2016-10-04 11:05:44 -07:00
xfs_dir2_block.c	xfs: don't crash on unexpected holes in dir/attr btrees	2017-07-07 18:55:17 -07:00
xfs_dir2_data.c	xfs: check that dir block entries don't off the end of the buffer	2017-07-25 08:36:35 -07:00
xfs_dir2_leaf.c	xfs: don't crash on unexpected holes in dir/attr btrees	2017-07-07 18:55:17 -07:00
xfs_dir2_node.c	xfs: return the hash value of a leaf1 directory block	2017-06-20 10:45:21 -07:00
xfs_dir2_priv.h	xfs: pass along transaction context when reading directory block buffers	2017-06-20 10:45:22 -07:00
xfs_dir2_sf.c	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_dir2.c	xfs: remove unneeded parameter from XFS_TEST_ERROR	2017-06-27 18:23:20 -07:00
xfs_dir2.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_dquot_buf.c	xfs: simplify xfs_calc_dquots_per_chunk	2017-04-12 08:42:51 -07:00
xfs_format.h	xfs: rename MAXPATHLEN to XFS_SYMLINK_MAXLEN	2017-07-07 08:37:26 -07:00
xfs_fs.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_ialloc_btree.c	xfs: plumb in needed functions for range querying of various btrees	2017-06-19 14:11:34 -07:00
xfs_ialloc_btree.h	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_ialloc.c	xfs: fix inobt inode allocation search optimization	2017-08-11 16:56:33 -07:00
xfs_ialloc.h	xfs: export _inobt_btrec_to_irec and _ialloc_cluster_alignment for scrub	2017-06-19 14:11:34 -07:00
xfs_inode_buf.c	xfs: remove unneeded parameter from XFS_TEST_ERROR	2017-06-27 18:23:20 -07:00
xfs_inode_buf.h	xfs: export various function for the online scrubber	2017-06-19 14:11:34 -07:00
xfs_inode_fork.c	xfs: simplify validation of the unwritten extent bit	2017-04-25 09:40:41 -07:00
xfs_inode_fork.h	xfs: rework the inline directory verifiers	2017-04-03 12:22:20 -07:00
xfs_log_format.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_log_recover.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_log_rlimit.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_quota_defs.h	Revert "xfs: grab dquots without taking the ilock"	2017-07-13 14:55:05 -07:00
xfs_refcount_btree.c	xfs: always compile the btree inorder check functions	2017-06-19 14:11:33 -07:00
xfs_refcount_btree.h	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
xfs_refcount.c	xfs: check _alloc_read_agf buffer pointer before using	2017-07-20 14:42:33 -07:00
xfs_refcount.h	xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent	2017-06-19 08:59:10 -07:00
xfs_rmap_btree.c	xfs: always compile the btree inorder check functions	2017-06-19 14:11:33 -07:00
xfs_rmap_btree.h	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
xfs_rmap.c	xfs: remove unneeded parameter from XFS_TEST_ERROR	2017-06-27 18:23:20 -07:00
xfs_rmap.h	xfs: export various function for the online scrubber	2017-06-19 14:11:34 -07:00
xfs_rtbitmap.c	xfs: export various function for the online scrubber	2017-06-19 14:11:34 -07:00
xfs_sb.c	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00
xfs_sb.h	xfs: remove unused function definitions	2016-02-08 14:58:07 +11:00
xfs_shared.h	xfs: define the on-disk refcount btree format	2016-10-03 09:11:18 -07:00
xfs_symlink_remote.c	xfs: rename MAXPATHLEN to XFS_SYMLINK_MAXLEN	2017-07-07 08:37:26 -07:00
xfs_trans_resv.c	xfs: rename MAXPATHLEN to XFS_SYMLINK_MAXLEN	2017-07-07 08:37:26 -07:00
xfs_trans_resv.h	xfs: increase log reservations for reflink	2016-10-05 16:26:29 -07:00
xfs_trans_space.h	xfs: reserve enough blocks to handle btree splits when remapping	2017-05-03 13:21:40 -07:00
xfs_types.h	xfs: remove double-underscore integer types	2017-06-19 14:11:33 -07:00