Amir Goldstein a37d9a17f0 fsnotify: invalidate dcache before IN_DELETE event ... Apparently, there are some applications that use IN_DELETE event as an invalidation mechanism and expect that if they try to open a file with the name reported with the delete event, that it should not contain the content of the deleted file. Commit 49246466a9 ("fsnotify: move fsnotify_nameremove() hook out of d_delete()") moved the fsnotify delete hook before d_delete() so fsnotify will have access to a positive dentry. This allowed a race where opening the deleted file via cached dentry is now possible after receiving the IN_DELETE event. To fix the regression, create a new hook fsnotify_delete() that takes the unlinked inode as an argument and use a helper d_delete_notify() to pin the inode, so we can pass it to fsnotify_delete() after d_delete(). Backporting hint: this regression is from v5.3. Although patch will apply with only trivial conflicts to v5.4 and v5.10, it won't build, because fsnotify_delete() implementation is different in each of those versions (see fsnotify_link()). A follow up patch will fix the fsnotify_unlink/rmdir() calls in pseudo filesystem that do not need to call d_delete(). Link: https://lore.kernel.org/r/20220120215305.282577-1-amir73il@gmail.com Reported-by: Ivan Delalande <colona@arista.com> Link: https://lore.kernel.org/linux-fsdevel/YeNyzoDM5hP5LtGW@visor/ Fixes: 49246466a9 ("fsnotify: move fsnotify_nameremove() hook out of d_delete()") Cc: stable@vger.kernel.org # v5.3+ Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>		2022-01-24 14:16:46 +01:00
..
tests	btrfs: selftests: dump extent io tree if extent-io-tree test failed	2022-01-07 14:18:27 +01:00
acl.c
async-thread.c	btrfs: fix memory ordering between normal and ordered work functions	2021-11-16 16:50:23 +01:00
async-thread.h
backref.c	btrfs: stop accessing ->extent_root directly	2022-01-03 15:09:49 +01:00
backref.h
block-group.c	btrfs: make send work with concurrent block group relocation	2022-01-07 14:18:23 +01:00
block-group.h	btrfs: fix deadlock between chunk allocation and chunk btree modifications	2021-10-26 19:08:07 +02:00
block-rsv.c	btrfs: reserve extra space for the free space tree	2022-01-07 14:18:25 +01:00
block-rsv.h	btrfs: init root block_rsv at init root time	2022-01-03 15:09:48 +01:00
btrfs_inode.h	btrfs: only copy dir index keys when logging a directory	2022-01-03 15:09:42 +01:00
check-integrity.c	btrfs: check-integrity: stop storing the block device name in btrfsic_dev_state	2021-10-26 19:08:07 +02:00
check-integrity.h
compression.c	btrfs: remove unnecessary parameter type from compression_decompress_bio	2022-01-07 14:18:27 +01:00
compression.h	btrfs: determine stripe boundary at bio allocation time in btrfs_submit_compressed_write	2021-10-26 19:08:04 +02:00
ctree.c	btrfs: refactor unlock_up	2022-01-07 14:18:26 +01:00
ctree.h	btrfs: remove reada infrastructure	2022-01-07 14:18:26 +01:00
delalloc-space.c	btrfs: change root to fs_info for btrfs_reserve_metadata_bytes	2022-01-03 15:09:45 +01:00
delalloc-space.h
delayed-inode.c	btrfs: add an inode-item.h	2022-01-07 14:18:23 +01:00
delayed-inode.h
delayed-ref.c	btrfs: reserve extra space for the free space tree	2022-01-07 14:18:25 +01:00
delayed-ref.h	btrfs: make btrfs_ref::real_root optional	2021-10-26 19:08:06 +02:00
dev-replace.c	btrfs: remove reada infrastructure	2022-01-07 14:18:26 +01:00
dev-replace.h
dir-item.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
discard.c
discard.h
disk-io.c	btrfs: output more debug messages for uncommitted transaction	2022-01-07 14:18:27 +01:00
disk-io.h	btrfs: track the csum, extent, and free space trees in a rb tree	2022-01-03 15:09:50 +01:00
export.c
export.h
extent-io-tree.h
extent-tree.c	btrfs: zoned: fix chunk allocation condition for zoned allocator	2022-01-07 14:18:26 +01:00
extent_io.c	btrfs: fix argument list that the kdoc format and script verified	2022-01-07 14:18:27 +01:00
extent_io.h	btrfs: cleanup for extent_write_locked_range()	2021-10-26 19:08:04 +02:00
extent_map.c	btrfs: rename btrfs_bio to btrfs_io_context	2021-10-26 19:08:02 +02:00
extent_map.h
file-item.c	btrfs: stop accessing ->csum_root directly	2022-01-03 15:09:49 +01:00
file.c	btrfs: fix deadlock due to page faults during direct IO reads and writes	2021-11-09 13:46:07 +01:00
free-space-cache.c	btrfs: add inode to truncate control	2022-01-07 14:18:24 +01:00
free-space-cache.h	btrfs: change name and type of private member of btrfs_free_space_ctl	2022-01-03 15:09:50 +01:00
free-space-tree.c	btrfs: track the csum, extent, and free space trees in a rb tree	2022-01-03 15:09:50 +01:00
free-space-tree.h
inode-item.c	btrfs: make should_throttle loop local in btrfs_truncate_inode_items	2022-01-07 14:18:25 +01:00
inode-item.h	btrfs: add inode to truncate control	2022-01-07 14:18:24 +01:00
inode.c	btrfs: respect the max size in the header when activating swap file	2022-01-07 14:18:27 +01:00
ioctl.c	fsnotify: invalidate dcache before IN_DELETE event	2022-01-24 14:16:46 +01:00
Kconfig	btrfs: use generic Kconfig option for 256kB page size limit	2022-01-20 08:52:55 +02:00
locking.c
locking.h	btrfs: assert that extent buffers are write locked instead of only locked	2021-10-26 19:08:02 +02:00
lzo.c	for-5.16-rc2-tag	2021-11-26 11:24:32 -08:00
Makefile	btrfs: remove reada infrastructure	2022-01-07 14:18:26 +01:00
misc.h
ordered-data.c
ordered-data.h
orphan.c
print-tree.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
print-tree.h
props.c	btrfs: change root to fs_info for btrfs_reserve_metadata_bytes	2022-01-03 15:09:45 +01:00
props.h
qgroup.c	btrfs: stop accessing ->extent_root directly	2022-01-03 15:09:49 +01:00
qgroup.h
raid56.c	btrfs: remove btrfs_raid_bio::fs_info member	2021-10-26 19:08:03 +02:00
raid56.h	btrfs: remove btrfs_raid_bio::fs_info member	2021-10-26 19:08:03 +02:00
rcu-string.h
ref-verify.c	btrfs: stop accessing ->extent_root directly	2022-01-03 15:09:49 +01:00
ref-verify.h
reflink.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
reflink.h
relocation.c	btrfs: add an inode-item.h	2022-01-07 14:18:23 +01:00
root-tree.c	btrfs: change root to fs_info for btrfs_reserve_metadata_bytes	2022-01-03 15:09:45 +01:00
scrub.c	btrfs: scrub: cleanup the argument list of scrub_stripe()	2022-01-07 14:18:27 +01:00
send.c	btrfs: make send work with concurrent block group relocation	2022-01-07 14:18:23 +01:00
send.h	btrfs: send: prepare for v2 protocol	2021-10-29 12:38:43 +02:00
space-info.c	btrfs: fix argument list that the kdoc format and script verified	2022-01-07 14:18:27 +01:00
space-info.h	btrfs: change root to fs_info for btrfs_reserve_metadata_bytes	2022-01-03 15:09:45 +01:00
struct-funcs.c
subpage.c	btrfs: handle page locking in btrfs_page_end_writer_lock with no writers	2021-10-26 19:08:05 +02:00
subpage.h	btrfs: rework page locking in __extent_writepage()	2021-10-26 19:08:05 +02:00
super.c	btrfs: remove reada infrastructure	2022-01-07 14:18:26 +01:00
sysfs.c	btrfs: sysfs: add devinfo/fsid to retrieve actual fsid from the device	2022-01-07 14:18:25 +01:00
sysfs.h
transaction.c	btrfs: make send work with concurrent block group relocation	2022-01-07 14:18:23 +01:00
transaction.h	btrfs: remove trans_handle->root	2022-01-03 15:09:47 +01:00
tree-checker.c	btrfs: rename btrfs_item_end_nr to btrfs_item_data_end	2022-01-03 15:09:43 +01:00
tree-checker.h
tree-defrag.c	btrfs: remove unnecessary extent root check in btrfs_defrag_leaves	2022-01-03 15:09:48 +01:00
tree-log.c	btrfs: do not check -EAGAIN when truncating inodes in the log root	2022-01-07 14:18:25 +01:00
tree-log.h	btrfs: change error handling for btrfs_delete_*_in_log	2021-10-26 19:08:05 +02:00
tree-mod-log.c
tree-mod-log.h
ulist.c
ulist.h
uuid-tree.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
verity.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
volumes.c	btrfs: remove reada infrastructure	2022-01-07 14:18:26 +01:00
volumes.h	btrfs: remove reada infrastructure	2022-01-07 14:18:26 +01:00
xattr.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
xattr.h
zlib.c	Revert "btrfs: compression: drop kmap/kunmap from zlib"	2021-10-29 13:03:05 +02:00
zoned.c	btrfs: zoned: fix chunk allocation condition for zoned allocator	2022-01-07 14:18:26 +01:00
zoned.h	btrfs: zoned: fix chunk allocation condition for zoned allocator	2022-01-07 14:18:26 +01:00
zstd.c	lib: zstd: Add kernel-specific API	2021-11-08 16:55:21 -08:00