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android_kernel_motorola_sm6225/fs/afs
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David Howells 9c55dc85d8 afs: Only update d_fsdata if different in afs_d_revalidate() 
[ Upstream commit 5dc84855b0fc7e1db182b55c5564fd539d6eff92 ]

In the in-kernel afs filesystem, d_fsdata is set with the data version of
the parent directory.  afs_d_revalidate() will update this to the current
directory version, but it shouldn't do this if it the value it read from
d_fsdata is the same as no lock is held and cmpxchg() is not used.

Fix the code to only change the value if it is different from the current
directory version.

Fixes: 260a980317 ("[AFS]: Add "directory write" support.")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-06 10:21:55 +02:00
..
addr_list.c Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-06-16 16:32:04 +09:00
afs.h afs: Rearrange status mapping 2018-04-09 21:53:59 +01:00
afs_cm.h afs: support the CB.ProbeUuid RPC op 2008-04-29 08:06:26 -07:00
afs_fs.h afs: Prospectively look up extra files when doing a single lookup 2018-04-09 21:12:31 +01:00
afs_vl.h afs: Make use of the YFS service upgrade to fully support IPv6 2017-11-13 15:38:19 +00:00
cache.c fscache: Pass object size in rather than calling back for it 2018-04-06 14:05:14 +01:00
callback.c afs: Fix uninitialised spinlock afs_volume::cb_break_lock 2019-07-21 09:03:06 +02:00
cell.c afs: Fix cell proc list 2018-10-12 13:18:57 +02:00
cmservice.c afs: Fix the CB.ProbeUuid service handler to reply correctly 2019-09-06 10:21:54 +02:00
dir.c afs: Only update d_fsdata if different in afs_d_revalidate() 2019-09-06 10:21:55 +02:00
dir_edit.c afs: Locally edit directory data for mkdir/create/unlink/... 2018-04-09 21:54:48 +01:00
dynroot.c afs: Fix cell proc list 2018-10-12 13:18:57 +02:00
file.c fs: afs: Fix a possible null-pointer dereference in afs_put_read() 2019-09-06 10:21:54 +02:00
flock.c afs: Fix key refcounting in file locking code 2019-02-27 10:08:56 +01:00
fsclient.c Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-06-16 16:32:04 +09:00
inode.c afs: Fix key refcounting in file locking code 2019-02-27 10:08:56 +01:00
internal.h afs: Fix uninitialised spinlock afs_volume::cb_break_lock 2019-07-21 09:03:06 +02:00
Kconfig fs/afs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
main.c afs: Fix cell proc list 2018-10-12 13:18:57 +02:00
Makefile afs: Handle CONFIG_PROC_FS=n 2018-06-15 00:52:55 -04:00
misc.c afs: Consolidate abort_to_error translators 2017-11-13 15:38:17 +00:00
mntpt.c afs: Support the AFS dynamic root 2018-02-06 14:43:37 +00:00
netdevices.c afs: Implement network namespacing 2018-05-23 12:01:15 +01:00
proc.c afs: Fix cell proc list 2018-10-12 13:18:57 +02:00
rotate.c rxrpc: Fix handling of call quietly cancelled out on server 2018-06-04 16:06:26 -04:00
rxrpc.c afs: Handle EIO from delivery function 2018-11-27 16:13:00 +01:00
security.c afs: Fix directory permissions check 2018-05-16 21:35:23 +01:00
server.c afs: Fix clearance of reply 2018-10-15 15:31:47 +02:00
server_list.c afs: Fix refcounting in callback registration 2018-05-14 13:17:35 +01:00
super.c afs: Display manually added cells in dynamic root mount 2018-06-15 15:27:09 +01:00
vlclient.c afs: Fix loop index mixup in afs_deliver_vl_get_entry_by_name_u() 2019-09-06 10:21:54 +02:00
volume.c afs: Fix uninitialised spinlock afs_volume::cb_break_lock 2019-07-21 09:03:06 +02:00
write.c afs: Unlock pages for __pagevec_release() 2019-05-16 19:41:21 +02:00
xattr.c afs: Overhaul volume and server record caching and fileserver rotation 2017-11-13 15:38:19 +00:00
xdr_fs.h afs: Adjust the directory XDR structures 2018-04-09 21:54:48 +01:00