redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

afs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH 

commit 69cf3978f3 upstream.

AFS keeps track of the epoch value from the rxrpc protocol to note (a) when
a fileserver appears to have restarted and (b) when different endpoints of
a fileserver do not appear to be associated with the same fileserver
(ie. all probes back from a fileserver from all of its interfaces should
carry the same epoch).

However, the AFS_SERVER_FL_HAVE_EPOCH flag that indicates that we've
received the server's epoch is never set, though it is used.

Fix this to set the flag when we first receive an epoch value from a probe
sent to the filesystem client from the fileserver.

Fixes: 3bf0fb6f33 ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
David Howells 2020-04-24 11:21:14 +01:00 committed by Greg Kroah-Hartman
parent c2bdc86ec8
commit f581eff939
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/afs/cmservice.c
View File

@ -169,7 +169,7 @@ static int afs_record_cm_probe(struct afs_call *call, struct afs_server *server)
spin_lock(&server->probe_lock);
if (!test_bit(AFS_SERVER_FL_HAVE_EPOCH, &server->flags)) {
if (!test_and_set_bit(AFS_SERVER_FL_HAVE_EPOCH, &server->flags)) {
server->cm_epoch = call->epoch;
server->probe.cm_epoch = call->epoch;
goto out;