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linux-sg2042/fs/afs
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David Howells 1744a22ae9 afs: Fix mmap 
Fix afs_add_open_map() to check that the vnode isn't already on the list
when it adds it.  It's possible that afs_drop_open_mmap() decremented
the cb_nr_mmap counter, but hadn't yet got into the locked section to
remove it.

Also vnode->cb_mmap_link should be initialised, so fix that too.

Fixes: 6e0e99d58a ("afs: Fix mmap coherency vs 3rd-party changes")
Reported-by: kafs-testing+fedora34_64checkkafs-build-300@auristor.com
Suggested-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: kafs-testing+fedora34_64checkkafs-build-300@auristor.com
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/686465.1639435380@warthog.procyon.org.uk/ # v1
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2021-12-16 09:10:13 -08:00
..
Kconfig afs: Use new netfs lib read helper API 2021-04-23 10:17:28 +01:00
Makefile afs: Detect cell aliases 1 - Cells with root volumes 2020-06-04 15:37:57 +01:00
addr_list.c afs: Use kfree_rcu() instead of casting kfree() to rcu_callback_t 2020-03-13 10:47:33 -07:00
afs.h afs: Implement client support for the YFSVL.GetCellName RPC op 2020-06-04 15:37:57 +01:00
afs_cm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs_fs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs_vl.h afs: Implement client support for the YFSVL.GetCellName RPC op 2020-06-04 15:37:57 +01:00
cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
callback.c afs: Try to avoid taking RCU read lock when checking vnode validity 2021-09-13 09:10:39 +01:00
cell.c afs: Fix mmap coherency vs 3rd-party changes 2021-09-13 09:10:39 +01:00
cmservice.c afs: Fix tracepoint string placement with built-in AFS 2021-07-21 15:08:35 +01:00
dir.c afs: Use folios in directory handling 2021-11-10 21:17:09 +00:00
dir_edit.c afs: Use folios in directory handling 2021-11-10 21:17:09 +00:00
dir_silly.c afs: Fix kerneldoc warning shown up by W=1 2021-10-04 22:04:44 +01:00
dynroot.c afs: Add tracing for cell refcount and active user count 2020-10-16 14:39:21 +01:00
file.c afs: Fix mmap 2021-12-16 09:10:13 -08:00
flock.c fs: remove mandatory file locking support 2021-08-23 06:15:36 -04:00
fs_operation.c afs: Fix speculative status fetches 2021-05-01 11:55:36 -07:00
fs_probe.c afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server 2021-09-13 09:14:21 +01:00
fsclient.c afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server 2021-09-13 09:14:21 +01:00
inode.c afs: Sort out symlink reading 2021-11-02 09:40:18 +00:00
internal.h netfs, 9p, afs, ceph: Use folios 2021-11-10 21:16:56 +00:00
main.c afs: Fix an IS_ERR() vs NULL check 2021-06-15 07:42:26 -07:00
misc.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mntpt.c afs: Stop listxattr() from listing "afs.*" attributes 2021-03-15 17:09:54 +00:00
proc.c afs: Add tracing for cell refcount and active user count 2020-10-16 14:39:21 +01:00
protocol_afs.h afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server 2021-09-13 09:14:21 +01:00
protocol_uae.h afs: Add support for the UAE error table 2019-06-28 18:37:53 +01:00
protocol_yfs.h afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server 2021-09-13 09:14:21 +01:00
rotate.c afs: Try to avoid taking RCU read lock when checking vnode validity 2021-09-13 09:10:39 +01:00
rxrpc.c afs: Use ITER_XARRAY for writing 2021-04-23 10:17:27 +01:00
security.c fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
server.c afs: Fix mmap coherency vs 3rd-party changes 2021-09-13 09:10:39 +01:00
server_list.c afs: Reorganise volume and server trees to be rooted on the cell 2020-06-04 15:37:57 +01:00
super.c afs: Fix mmap 2021-12-16 09:10:13 -08:00
vl_alias.c afs: Add tracing for cell refcount and active user count 2020-10-16 14:39:21 +01:00
vl_list.c afs: Don't use VL probe running state to make decisions outside probe code 2020-08-20 18:21:28 +01:00
vl_probe.c afs: Don't use VL probe running state to make decisions outside probe code 2020-08-20 18:21:28 +01:00
vl_rotate.c afs: Add tracing for cell refcount and active user count 2020-10-16 14:39:21 +01:00
vlclient.c afs: Fix fall-through warnings for Clang 2021-05-25 07:30:34 -10:00
volume.c afs: Add tracing for cell refcount and active user count 2020-10-16 14:39:21 +01:00
write.c netfs, 9p, afs, ceph: Use folios 2021-11-10 21:16:56 +00:00
xattr.c afs: Stop listxattr() from listing "afs.*" attributes 2021-03-15 17:09:54 +00:00
xdr_fs.h afs: Fix directory entry size calculation 2021-01-04 12:25:19 +00:00
yfsclient.c afs: Set mtime from the client for yfs create operations 2021-11-02 09:42:26 +00:00