David Howells b5d50c6a60 afs: Fix file locking on R/O volumes to operate in local mode ... [ Upstream commit b590eb41be ] AFS doesn't really do locking on R/O volumes as fileservers don't maintain state with each other and thus a lock on a R/O volume file on one fileserver will not be be visible to someone looking at the same file on another fileserver. Further, the server may return an error if you try it. Fix this by doing what other AFS clients do and handle filelocking on R/O volume files entirely within the client and don't touch the server. Fixes: 6c6c1d63c2 ("afs: Provide mount-time configurable byte-range file locking emulation") Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-12-03 07:31:22 +01:00
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addr_list.c
afs.h
afs_cm.h
afs_fs.h
afs_vl.h
cache.c
callback.c
cell.c
cmservice.c
dir.c	afs: Fix setting of mtime when creating a file/dir/symlink	2023-06-14 11:13:00 +02:00
dir_edit.c
dir_silly.c
dynroot.c	afs: Make error on cell lookup failure consistent with OpenAFS	2023-12-03 07:31:21 +01:00
file.c
flock.c	afs: Use the operation issue time instead of the reply time for callbacks	2022-09-15 11:30:05 +02:00
fs_operation.c
fs_probe.c	afs: Fix lost servers_outstanding count	2022-12-31 13:14:45 +01:00
fsclient.c	afs: Use the operation issue time instead of the reply time for callbacks	2022-09-15 11:30:05 +02:00
inode.c	afs: Fix updating of i_size with dv jump from server	2023-05-11 23:00:38 +09:00
internal.h	afs: Fix afs_server_list to be cleaned up with RCU	2023-12-03 07:31:21 +01:00
Kconfig
main.c
Makefile
misc.c	afs: Return -EAGAIN, not -EREMOTEIO, when a file already locked	2022-09-23 14:15:51 +02:00
mntpt.c
proc.c
protocol_afs.h
protocol_uae.h
protocol_yfs.h
rotate.c	afs: Adjust ACK interpretation to try and cope with NAT	2022-06-09 10:22:40 +02:00
rxrpc.c	afs: Use the operation issue time instead of the reply time for callbacks	2022-09-15 11:30:05 +02:00
security.c
server.c
server_list.c	afs: Fix afs_server_list to be cleaned up with RCU	2023-12-03 07:31:21 +01:00
super.c	afs: Fix file locking on R/O volumes to operate in local mode	2023-12-03 07:31:22 +01:00
vl_alias.c
vl_list.c
vl_probe.c	afs: Fix vlserver probe RTT handling	2023-06-21 15:59:18 +02:00
vl_rotate.c	afs: Return ENOENT if no cell DNS record can be found	2023-12-03 07:31:22 +01:00
vlclient.c
volume.c
write.c	afs: Adjust ACK interpretation to try and cope with NAT	2022-06-09 10:22:40 +02:00
xattr.c
xdr_fs.h
yfsclient.c	afs: Use the operation issue time instead of the reply time for callbacks	2022-09-15 11:30:05 +02:00