Darrick J. Wong 27e46e4c63 xfs: fix an ABBA deadlock in xfs_rename ... When overlayfs is running on top of xfs and the user unlinks a file in the overlay, overlayfs will create a whiteout inode and ask xfs to "rename" the whiteout file atop the one being unlinked. If the file being unlinked loses its one nlink, we then have to put the inode on the unlinked list. This requires us to grab the AGI buffer of the whiteout inode to take it off the unlinked list (which is where whiteouts are created) and to grab the AGI buffer of the file being deleted. If the whiteout was created in a higher numbered AG than the file being deleted, we'll lock the AGIs in the wrong order and deadlock. Therefore, grab all the AGI locks we think we'll need ahead of time, and in order of increasing AG number per the locking rules. Reported-by: wenli xie <wlxie7296@gmail.com> Fixes: 93597ae8dac0 ("xfs: Fix deadlock between AGI and AGF when target_ip exists in xfs_rename()") Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>		2021-12-10 16:25:39 +08:00
..
xfs_ag.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_ag.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_ag_resv.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_ag_resv.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_alloc.c	xfs: set xefi_discard when creating a deferred agfl free log intent item	2021-03-16 16:40:35 +08:00
xfs_alloc.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_alloc_btree.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_alloc_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_attr.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_attr.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_attr_leaf.c	xfs: fix attr leaf header freemap.size underflow	2021-03-16 16:36:39 +08:00
xfs_attr_leaf.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_attr_remote.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_attr_remote.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_attr_sf.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_bit.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_bit.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_bmap.c	xfs: don't free rt blocks when we're doing a REMAP bunmapi call	2021-03-16 16:39:48 +08:00
xfs_bmap.h	xfs: set xefi_discard when creating a deferred agfl free log intent item	2021-03-16 16:40:35 +08:00
xfs_bmap_btree.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_bmap_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_btree.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_cksum.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_da_btree.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_da_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_da_format.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_da_format.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_defer.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_defer.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_dir2.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_dir2.h	xfs: fix an ABBA deadlock in xfs_rename	2021-12-10 16:25:39 +08:00
xfs_dir2_block.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_dir2_data.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_dir2_leaf.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_dir2_node.c	xfs: don't ever return a stale pointer from __xfs_dir3_free_read	2021-03-16 16:37:00 +08:00
xfs_dir2_priv.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_dir2_sf.c	xfs: fix an ABBA deadlock in xfs_rename	2021-12-10 16:25:39 +08:00
xfs_dquot_buf.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_errortag.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_format.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_fs.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_health.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_ialloc.c	xfs: fix off-by-one in inode alloc block reservation calculation	2021-03-16 16:35:55 +08:00
xfs_ialloc.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_ialloc_btree.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_ialloc_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_iext_tree.c	xfs: fix inode fork extent count overflow	2021-03-16 16:36:33 +08:00
xfs_inode_buf.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_inode_buf.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_inode_fork.c	xfs: fix inode fork extent count overflow	2021-03-16 16:36:33 +08:00
xfs_inode_fork.h	xfs: fix inode fork extent count overflow	2021-03-16 16:36:33 +08:00
xfs_log_format.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_log_recover.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_log_rlimit.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_quota_defs.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_refcount.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_refcount.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_refcount_btree.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_refcount_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_rmap.c	xfs: fix flags argument to rmap lookup when converting shared file rmaps	2021-03-16 16:40:50 +08:00
xfs_rmap.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_rmap_btree.c	xfs: revert "xfs: fix rmap key and record comparison functions"	2021-03-16 16:41:23 +08:00
xfs_rmap_btree.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_rtbitmap.c	xfs: fix high key handling in the rt allocator's query_range function	2021-03-16 16:38:51 +08:00
xfs_sb.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_sb.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_shared.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_symlink_remote.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_trans_inode.c	writeback: Drop I_DIRTY_TIME_EXPIRE	2021-04-12 12:51:42 +08:00
xfs_trans_resv.c	xfs: fix log reservation overflows when allocating large rt extents	2021-03-16 16:36:43 +08:00
xfs_trans_resv.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_trans_space.h	xfs: fix off-by-one in inode alloc block reservation calculation	2021-03-16 16:35:55 +08:00
xfs_types.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xfs_types.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00