Brian Foster 75d65361cf xfs: split indlen reservations fairly when under reserved ... Certain workoads that punch holes into speculative preallocation can cause delalloc indirect reservation splits when the delalloc extent is split in two. If further splits occur, an already short-handed extent can be split into two in a manner that leaves zero indirect blocks for one of the two new extents. This occurs because the shortage is large enough that the xfs_bmap_split_indlen() algorithm completely drains the requested indlen of one of the extents before it honors the existing reservation. This ultimately results in a warning from xfs_bmap_del_extent(). This has been observed during file copies of large, sparse files using 'cp --sparse=always.' To avoid this problem, update xfs_bmap_split_indlen() to explicitly apply the reservation shortage fairly between both extents. This smooths out the overall indlen shortage and defers the situation where we end up with a delalloc extent with zero indlen reservation to extreme circumstances. Reported-by: Patrick Dung <mpatdung@gmail.com> 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>		2017-02-16 17:20:12 -08:00
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xfs_ag_resv.c	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_ag_resv.h	xfs: set up per-AG free space reservations	2016-09-19 10:30:52 +10:00
xfs_alloc_btree.c	Merge branch 'xfs-4.10-misc-fixes-4' into for-next	2016-12-09 16:56:26 +11:00
xfs_alloc_btree.h
xfs_alloc.c	xfs: improve handling of busy extents in the low-level allocator	2017-02-09 10:50:25 -08:00
xfs_alloc.h	xfs: adjust allocation length in xfs_alloc_space_available	2017-01-09 13:37:44 -08:00
xfs_attr_leaf.c	xfs: ignore leaf attr ichdr.count in verifier during log replay	2016-12-09 16:49:47 +11:00
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: rename flist/free_list to dfops	2016-08-03 11:19:29 +10:00
xfs_attr_remote.h
xfs_attr_sf.h	xfs: move struct xfs_attr_shortform to xfs_da_format.h	2016-02-08 15:00:01 +11:00
xfs_attr.c	xfs: remove racy hasattr check from attr ops	2017-01-25 07:53:43 -08:00
xfs_bit.c	libxfs: Optimize the loop for xfs_bitmap_empty	2016-01-04 16:10:19 +11:00
xfs_bit.h
xfs_bmap_btree.c	xfs: remove boilerplate around xfs_btree_init_block	2017-01-30 16:32:24 -08:00
xfs_bmap_btree.h
xfs_bmap.c	xfs: split indlen reservations fairly when under reserved	2017-02-16 17:20:12 -08:00
xfs_bmap.h	xfs: fix COW writeback race	2017-01-23 10:55:07 -08:00
xfs_btree.c	xfs: filter out obviously bad btree pointers	2017-02-02 15:13:58 -08:00
xfs_btree.h	xfs: filter out obviously bad btree pointers	2017-02-02 15:13:58 -08:00
xfs_cksum.h	xfs: optimise CRC updates	2016-12-05 14:40:32 +11:00
xfs_da_btree.c	xfs: fail _dir_open when readahead fails	2017-02-02 15:13:58 -08:00
xfs_da_btree.h	xfs: fail _dir_open when readahead fails	2017-02-02 15:13:58 -08:00
xfs_da_format.c	xfs: kill xfs_dir2_inou_t	2016-07-20 11:48:31 +10:00
xfs_da_format.h	xfs: fix attr shortform structure alignment on cris	2016-08-03 10:59:42 +10:00
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: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_dir2_data.c	Merge branch 'xfs-4.10-misc-fixes-3' into for-next	2016-12-07 17:42:30 +11:00
xfs_dir2_leaf.c	xfs: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_dir2_node.c	xfs: verify free block header fields	2017-02-02 15:14:00 -08:00
xfs_dir2_priv.h	xfs: move dir_ino_validate declaration per xfsprogs	2016-11-08 11:59:12 +11:00
xfs_dir2_sf.c	xfs: kill xfs_dir2_inou_t	2016-07-20 11:48:31 +10:00
xfs_dir2.c	xfs: fix xfs_mode_to_ftype() prototype	2017-01-18 12:39:21 -08:00
xfs_dir2.h	xfs: fix xfs_mode_to_ftype() prototype	2017-01-18 12:39:21 -08:00
xfs_dquot_buf.c	libxfs: clean up _calc_dquots_per_chunk	2016-10-20 15:46:18 +11:00
xfs_format.h	libxfs: v3 inodes are only valid on crc-enabled filesystems	2016-10-20 15:48:38 +11:00
xfs_fs.h	xfs: create a separate cow extent size hint for the allocator	2016-10-05 16:26:26 -07:00
xfs_ialloc_btree.c	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_ialloc_btree.h	xfs: use per-AG reservations for the finobt	2017-01-25 07:49:35 -08:00
xfs_ialloc.c	Merge branch 'xfs-4.10-misc-fixes-3' into for-next	2016-12-07 17:42:30 +11:00
xfs_ialloc.h	xfs: rename flist/free_list to dfops	2016-08-03 11:19:29 +10:00
xfs_inode_buf.c	xfs: sanity check inode di_mode	2017-01-17 11:42:22 -08:00
xfs_inode_buf.h	libxfs: convert ushort to unsigned short	2016-11-08 11:55:48 +11:00
xfs_inode_fork.c	xfs: check for obviously bad level values in the bmbt root	2017-02-02 15:13:59 -08:00
xfs_inode_fork.h	xfs: new inode extent list lookup helpers	2016-11-24 11:39:32 +11:00
xfs_log_format.h	libxfs: convert ushort to unsigned short	2016-11-08 11:55:48 +11:00
xfs_log_recover.h	xfs: remove unused struct declarations	2017-01-30 16:32:25 -08:00
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	xfs: wire up Q_XGETNEXTQUOTA / get_nextdqblk	2016-02-08 11:27:38 +11:00
xfs_refcount_btree.c	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
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: rework refcount cow recovery error handling	2016-10-10 17:23:07 +11:00
xfs_refcount.h	xfs: store in-progress CoW allocations in the refcount btree	2016-10-05 16:26:05 -07:00
xfs_rmap_btree.c	xfs: use the actual AG length when reserving blocks	2017-01-03 18:39:33 -08:00
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: convert unwritten status of reverse mappings for shared files	2016-10-05 16:26:29 -07:00
xfs_rmap.h	xfs: use interval query for rmap alloc operations on shared files	2016-10-05 16:26:29 -07:00
xfs_rtbitmap.c	libxfs: fix whitespace problems	2016-11-08 11:56:13 +11:00
xfs_sb.c	xfs: verify dirblocklog correctly	2017-01-24 12:23:33 -08:00
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: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_trans_resv.c	xfs: increase log reservations for reflink	2016-10-05 16:26:29 -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: implement swapext for rmap filesystems	2016-10-05 16:26:32 -07:00
xfs_types.h	Merge branch 'xfs-4.10-extent-lookup' into for-next	2016-11-24 11:41:59 +11:00