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Omar Sandoval e1ceceb494 xfs: don't check for AG deadlock for realtime files in bunmapi 
commit 69ffe5960d upstream.

Commit 5b094d6dac ("xfs: fix multi-AG deadlock in xfs_bunmapi") added
a check in __xfs_bunmapi() to stop early if we would touch multiple AGs
in the wrong order. However, this check isn't applicable for realtime
files. In most cases, it just makes us do unnecessary commits. However,
without the fix from the previous commit ("xfs: fix realtime file data
space leak"), if the last and second-to-last extents also happen to have
different "AG numbers", then the break actually causes __xfs_bunmapi()
to return without making any progress, which sends
xfs_itruncate_extents_flags() into an infinite loop.

Fixes: 5b094d6dac ("xfs: fix multi-AG deadlock in xfs_bunmapi")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 10:19:04 +01:00
..
xfs_ag.c xfs: factor the ag length extension code into libxfs 2018-05-15 18:12:51 -07:00
xfs_ag.h xfs: factor the ag length extension code into libxfs 2018-05-15 18:12:51 -07:00
xfs_ag_resv.c xfs: rename m_inotbt_nores to m_finobt_nores 2019-07-26 09:14:28 +02:00
xfs_ag_resv.h xfs: pass transaction lock while setting up agresv on cyclic metadata 2018-07-29 22:37:08 -07:00
xfs_alloc.c xfs: always defer agfl block frees 2018-08-02 23:05:14 -07:00
xfs_alloc.h xfs: remove xfs_alloc_arg firstblock field 2018-07-11 22:26:30 -07:00
xfs_alloc_btree.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_alloc_btree.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr.c xfs: always rejoin held resources during defer roll 2019-08-29 08:28:58 +02:00
xfs_attr.h xfs: always rejoin held resources during defer roll 2019-08-29 08:28:58 +02:00
xfs_attr_leaf.c xfs: fix overflow in xfs_attr3_leaf_verify 2019-02-12 19:47:20 +01:00
xfs_attr_leaf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr_remote.c xfs: remove last of unnecessary xfs_defer_cancel() callers 2018-09-29 13:41:58 +10:00
xfs_attr_remote.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr_sf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bit.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bit.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bmap.c xfs: don't check for AG deadlock for realtime files in bunmapi 2020-01-09 10:19:04 +01:00
xfs_bmap.h xfs: Add attibute set and helper functions 2019-08-29 08:28:58 +02:00
xfs_bmap_btree.c xfs: pass transaction to xfs_defer_add() 2018-08-02 23:05:14 -07:00
xfs_bmap_btree.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_btree.c xfs: fix inverted return from xfs_btree_sblock_verify_crc 2019-02-12 19:47:21 +01:00
xfs_btree.h xfs: fold dfops into the transaction 2018-08-02 23:05:14 -07:00
xfs_cksum.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_da_btree.c xfs: check da node magic in _node_lookup_int 2018-08-01 07:42:43 -07:00
xfs_da_btree.h xfs: fold dfops into the transaction 2018-08-02 23:05:14 -07:00
xfs_da_format.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_da_format.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_defer.c xfs: always rejoin held resources during defer roll 2019-08-29 08:28:58 +02:00
xfs_defer.h xfs: fold dfops into the transaction 2018-08-02 23:05:14 -07:00
xfs_dir2.c xfs: fold dfops into the transaction 2018-08-02 23:05:14 -07:00
xfs_dir2.h xfs: fold dfops into the transaction 2018-08-02 23:05:14 -07:00
xfs_dir2_block.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_dir2_data.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dir2_leaf.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_dir2_node.c xfs: use swap macro in xfs_dir2_leafn_rebalance 2018-07-17 14:25:57 -07:00
xfs_dir2_priv.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dir2_sf.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dquot_buf.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_errortag.h xfs: force summary counter recalc at next mount 2018-07-23 09:08:01 -07:00
xfs_format.h xfs: don't treat unknown di_flags2 as corruption in scrub 2018-09-29 13:49:00 +10:00
xfs_fs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ialloc.c xfs: pass transaction to xfs_defer_add() 2018-08-02 23:05:14 -07:00
xfs_ialloc.h xfs: remove dfops parameter from ifree call stack 2018-07-11 22:26:07 -07:00
xfs_ialloc_btree.c xfs: rename m_inotbt_nores to m_finobt_nores 2019-07-26 09:14:28 +02:00
xfs_ialloc_btree.h xfs: pass transaction lock while setting up agresv on cyclic metadata 2018-07-29 22:37:08 -07:00
xfs_iext_tree.c xfs: use WRITE_ONCE to update if_seq 2018-08-07 10:57:12 -07:00
xfs_inode_buf.c xfs: validate inode di_forkoff 2018-09-29 13:50:13 +10:00
xfs_inode_buf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode_fork.c xfs: remove the xfs_ifork_t typedef 2018-07-30 07:57:48 -07:00
xfs_inode_fork.h xfs: maintain a sequence count for inode fork manipulations 2018-07-31 13:18:09 -07:00
xfs_log_format.h xfs: refactor unmount record write 2018-07-23 09:08:01 -07:00
xfs_log_recover.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_log_rlimit.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_quota_defs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_refcount.c xfs: pass transaction to xfs_defer_add() 2018-08-02 23:05:14 -07:00
xfs_refcount.h xfs: pass transaction to xfs_defer_add() 2018-08-02 23:05:14 -07:00
xfs_refcount_btree.c xfs: pass transaction lock while setting up agresv on cyclic metadata 2018-07-29 22:37:08 -07:00
xfs_refcount_btree.h xfs: pass transaction lock while setting up agresv on cyclic metadata 2018-07-29 22:37:08 -07:00
xfs_rmap.c xfs: pass transaction to xfs_defer_add() 2018-08-02 23:05:14 -07:00
xfs_rmap.h xfs: pass transaction to xfs_defer_add() 2018-08-02 23:05:14 -07:00
xfs_rmap_btree.c xfs: pass transaction lock while setting up agresv on cyclic metadata 2018-07-29 22:37:08 -07:00
xfs_rmap_btree.h xfs: pass transaction lock while setting up agresv on cyclic metadata 2018-07-29 22:37:08 -07:00
xfs_rtbitmap.c xfs: fix off-by-one error in xfs_rtalloc_query_range 2018-06-24 11:56:36 -07:00
xfs_sb.c xfs: only validate summary counts on primary superblock 2018-08-03 08:17:35 -07:00
xfs_sb.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_shared.h xfs: replace dop_low with transaction flag 2018-08-02 23:05:13 -07:00
xfs_symlink_remote.c xfs: zero length symlinks are not valid 2019-12-05 09:20:02 +01:00
xfs_trans_resv.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_trans_resv.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_space.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_types.c xfs: verify icount in superblock write 2018-07-31 13:18:09 -07:00
xfs_types.h xfs: verify icount in superblock write 2018-07-31 13:18:09 -07:00