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linux-stable/fs/xfs
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Darrick J. Wong 5838d0356b xfs: reset child dir '..' entry when unlinking child 
While running xfs/168, I noticed a second source of post-shrink
corruption errors causing shutdowns.

Let's say that directory B has a low inode number and is a child of
directory A, which has a high number.  If B is empty but open, and
unlinked from A, B's dotdot link continues to point to A.  If A is then
unlinked and the filesystem shrunk so that A is no longer a valid inode,
a subsequent AIL push of B will trip the inode verifiers because the
dotdot entry points outside of the filesystem.

To avoid this problem, reset B's dotdot entry to the root directory when
unlinking directories, since the root directory cannot be removed.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2021-07-15 09:58:42 -07:00
..
libxfs xfs: check for sparse inode clusters that cross new EOAG when shrinking 2021-07-15 09:58:41 -07:00
scrub New code for 5.14: 2021-07-02 14:30:27 -07:00
Kconfig xfs: fix Kconfig asking about XFS_SUPPORT_V4 when XFS_FS=n 2020-10-16 15:34:28 -07:00
kmem.c xfs: remove kmem_realloc() 2020-09-06 18:05:51 -07:00
kmem.h xfs: Remove kmem_zalloc_large() 2020-09-15 20:52:41 -07:00
Makefile
mrlock.h
xfs.h
xfs_acl.c xfs: support idmapped mounts 2021-01-24 14:43:46 +01:00
xfs_acl.h fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
xfs_aops.c fs: remove noop_set_page_dirty() 2021-06-29 10:53:48 -07:00
xfs_aops.h
xfs_attr_inactive.c xfs: Add delay ready attr remove routines 2021-06-01 10:49:47 -07:00
xfs_attr_list.c xfs: rename and simplify xfs_bmap_one_block 2021-04-15 09:35:50 -07:00
xfs_bio_io.c xfs: async blkdev cache flush 2021-06-21 10:05:51 -07:00
xfs_bmap_item.c treewide: Change list_sort to use const pointers 2021-04-08 16:04:22 -07:00
xfs_bmap_item.h
xfs_bmap_util.c New code for 5.14: 2021-07-02 14:30:27 -07:00
xfs_bmap_util.h
xfs_buf.c xfs: remove xfs_blkdev_issue_flush 2021-06-21 10:05:46 -07:00
xfs_buf.h xfs: remove ->b_offset handling for page backed buffers 2021-06-07 11:49:50 +10:00
xfs_buf_item.c xfs: remove dead stale buf unpin handling code 2021-06-21 10:14:24 -07:00
xfs_buf_item.h xfs: move the buffer retry logic to xfs_buf.c 2020-09-15 20:52:38 -07:00
xfs_buf_item_recover.c xfs: fix finobt btree block recovery ordering 2020-09-30 07:28:52 -07:00
xfs_dir2_readdir.c xfs: remove XFS_IFINLINE 2021-04-15 09:35:51 -07:00
xfs_discard.c xfs: convert allocbt cursors to use perags 2021-06-02 10:48:24 +10:00
xfs_discard.h
xfs_dquot.c xfs: move the XFS_IFEXTENTS check into xfs_iread_extents 2021-04-15 09:35:50 -07:00
xfs_dquot.h xfs: refactor default quota grace period setting code 2020-09-15 20:52:40 -07:00
xfs_dquot_item.c xfs: xfs_log_force_lsn isn't passed a LSN 2021-06-21 10:12:33 -07:00
xfs_dquot_item.h
xfs_dquot_item_recover.c
xfs_error.c xfs: add error injection for per-AG resv failure 2021-03-25 16:47:53 -07:00
xfs_error.h
xfs_export.c xfs: Fix fall-through warnings for Clang 2021-05-26 14:51:26 -05:00
xfs_export.h
xfs_extent_busy.c xfs: pass perags through to the busy extent code 2021-06-02 10:48:24 +10:00
xfs_extent_busy.h xfs: pass perags through to the busy extent code 2021-06-02 10:48:24 +10:00
xfs_extfree_item.c treewide: Change list_sort to use const pointers 2021-04-08 16:04:22 -07:00
xfs_extfree_item.h
xfs_file.c New code for 5.14: 2021-07-02 14:30:27 -07:00
xfs_filestream.c xfs: move xfs_perag_get/put to xfs_ag.[ch] 2021-06-02 10:48:24 +10:00
xfs_filestream.h xfs: move the di_flags field to struct xfs_inode 2021-04-07 14:37:05 -07:00
xfs_fsmap.c xfs: remove agno from btree cursor 2021-06-02 10:48:24 +10:00
xfs_fsmap.h xfs: fix deadlock and streamline xfs_getfsmap performance 2020-10-07 08:40:29 -07:00
xfs_fsops.c xfs: shorten the shutdown messages to a single line 2021-06-21 10:14:13 -07:00
xfs_fsops.h xfs: get rid of xfs_growfs_{data,log}_t 2021-02-03 09:18:50 -08:00
xfs_globals.c xfs: consolidate the eofblocks and cowblocks workers 2021-02-03 09:18:49 -08:00
xfs_health.c xfs: drop IDONTCACHE on inodes when we mark them sick 2021-06-08 09:30:20 -07:00
xfs_icache.c xfs: fix type mismatches in the inode reclaim functions 2021-06-21 10:12:46 -07:00
xfs_icache.h xfs: fix type mismatches in the inode reclaim functions 2021-06-21 10:12:46 -07:00
xfs_icreate_item.c
xfs_icreate_item.h
xfs_inode.c xfs: reset child dir '..' entry when unlinking child 2021-07-15 09:58:42 -07:00
xfs_inode.h xfs: get rid of xfs_dir_ialloc() 2021-06-02 10:48:24 +10:00
xfs_inode_item.c xfs: xfs_log_force_lsn isn't passed a LSN 2021-06-21 10:12:33 -07:00
xfs_inode_item.h xfs: xfs_log_force_lsn isn't passed a LSN 2021-06-21 10:12:33 -07:00
xfs_inode_item_recover.c xfs: rename struct xfs_legacy_ictimestamp 2021-04-22 18:29:25 -07:00
xfs_ioctl.c New code for 5.14: 2021-07-02 14:30:27 -07:00
xfs_ioctl.h xfs: convert to fileattr 2021-04-12 15:04:29 +02:00
xfs_ioctl32.c xfs: convert to fileattr 2021-04-12 15:04:29 +02:00
xfs_ioctl32.h xfs: convert to fileattr 2021-04-12 15:04:29 +02:00
xfs_iomap.c xfs: Fix fall-through warnings for Clang 2021-05-26 14:51:26 -05:00
xfs_iomap.h
xfs_iops.c xfs: clean up open-coded fs block unit conversions 2021-06-01 12:53:59 -07:00
xfs_iops.h xfs: support idmapped mounts 2021-01-24 14:43:46 +01:00
xfs_itable.c xfs: move the di_crtime field to struct xfs_inode 2021-04-07 14:37:05 -07:00
xfs_itable.h xfs: support idmapped mounts 2021-01-24 14:43:46 +01:00
xfs_iwalk.c xfs: use perag for ialloc btree cursors 2021-06-02 10:48:24 +10:00
xfs_iwalk.h
xfs_linux.h xfs: async blkdev cache flush 2021-06-21 10:05:51 -07:00
xfs_log.c New code for 5.14: 2021-07-02 14:30:27 -07:00
xfs_log.h xfs: xfs_log_force_lsn isn't passed a LSN 2021-06-21 10:12:33 -07:00
xfs_log_cil.c xfs: don't wait on future iclogs when pushing the CIL 2021-06-25 14:02:02 -07:00
xfs_log_priv.h xfs: Fix a CIL UAF by getting get rid of the iclog callback lock 2021-06-25 11:21:39 -07:00
xfs_log_recover.c xfs: force the log offline when log intent item recovery fails 2021-06-21 10:14:24 -07:00
xfs_message.c
xfs_message.h once: implement DO_ONCE_LITE for non-fast-path "do once" functionality 2021-06-28 15:54:57 -07:00
xfs_mount.c xfs: fix log intent recovery ENOSPC shutdowns when inactivating inodes 2021-06-21 10:14:24 -07:00
xfs_mount.h xfs: move perag structure and setup to libxfs/xfs_ag.[ch] 2021-06-02 10:48:24 +10:00
xfs_mru_cache.c xfs: set WQ_SYSFS on all workqueues in debug mode 2021-02-03 09:18:49 -08:00
xfs_mru_cache.h
xfs_ondisk.h xfs: rename struct xfs_legacy_ictimestamp 2021-04-22 18:29:25 -07:00
xfs_pnfs.c xfs: move the di_size field to struct xfs_inode 2021-04-07 14:37:03 -07:00
xfs_pnfs.h
xfs_pwork.c xfs: increase the default parallelism levels of pwork clients 2021-02-03 09:18:49 -08:00
xfs_pwork.h xfs: increase the default parallelism levels of pwork clients 2021-02-03 09:18:49 -08:00
xfs_qm.c xfs: get rid of xfs_dir_ialloc() 2021-06-02 10:48:24 +10:00
xfs_qm.h xfs: move the quotaoff dqrele inode walk into xfs_icache.c 2021-06-03 15:56:02 -07:00
xfs_qm_bhv.c xfs: move the di_projid field to struct xfs_inode 2021-04-07 14:37:03 -07:00
xfs_qm_syscalls.c xfs: move the quotaoff dqrele inode walk into xfs_icache.c 2021-06-03 15:56:02 -07:00
xfs_quota.h xfs: remove xfs_qm_vop_chown_reserve 2021-02-03 09:18:49 -08:00
xfs_quotaops.c xfs: move the di_nblocks field to struct xfs_inode 2021-04-07 14:37:03 -07:00
xfs_refcount_item.c treewide: Change list_sort to use const pointers 2021-04-08 16:04:22 -07:00
xfs_refcount_item.h
xfs_reflink.c xfs: convert refcount btree cursor to use perags 2021-06-02 10:48:24 +10:00
xfs_reflink.h
xfs_rmap_item.c treewide: Change list_sort to use const pointers 2021-04-08 16:04:22 -07:00
xfs_rmap_item.h
xfs_rtalloc.c xfs: move the di_flags field to struct xfs_inode 2021-04-07 14:37:05 -07:00
xfs_rtalloc.h xfs: remove xfs_buf_t typedef 2020-12-16 16:07:34 -08:00
xfs_stats.c xfs: periodically relog deferred intent items 2020-10-07 08:40:28 -07:00
xfs_stats.h xfs: periodically relog deferred intent items 2020-10-07 08:40:28 -07:00
xfs_super.c xfs: remove xfs_blkdev_issue_flush 2021-06-21 10:05:46 -07:00
xfs_super.h xfs: remove xfs_blkdev_issue_flush 2021-06-21 10:05:46 -07:00
xfs_symlink.c xfs: get rid of xfs_dir_ialloc() 2021-06-02 10:48:24 +10:00
xfs_symlink.h xfs: support idmapped mounts 2021-01-24 14:43:46 +01:00
xfs_sysctl.c xfs: restore speculative_cow_prealloc_lifetime sysctl 2021-02-24 10:16:08 -08:00
xfs_sysctl.h xfs: consolidate the eofblocks and cowblocks workers 2021-02-03 09:18:49 -08:00
xfs_sysfs.c
xfs_sysfs.h xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init 2020-08-07 11:50:17 -07:00
xfs_trace.c xfs: move perag structure and setup to libxfs/xfs_ag.[ch] 2021-06-02 10:48:24 +10:00
xfs_trace.h xfs: fix type mismatches in the inode reclaim functions 2021-06-21 10:12:46 -07:00
xfs_trans.c xfs: xfs_log_force_lsn isn't passed a LSN 2021-06-21 10:12:33 -07:00
xfs_trans.h xfs: xfs_log_force_lsn isn't passed a LSN 2021-06-21 10:12:33 -07:00
xfs_trans_ail.c xfs: delete duplicated words + other fixes 2020-08-05 08:49:58 -07:00
xfs_trans_buf.c xfs: Fix fall-through warnings for Clang 2021-05-26 14:51:26 -05:00
xfs_trans_dquot.c xfs: shut down the filesystem if we screw up quota reservation 2021-02-03 09:18:49 -08:00
xfs_trans_priv.h
xfs_xattr.c xfs: prevent metadata files from being inactivated 2021-03-25 16:47:50 -07:00