This is a note to let you know that I've just added the patch titled
afs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH
to the 5.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
afs-fix-to-actually-set-afs_server_fl_have_epoch.patch
and it can be found in the queue-5.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 69cf3978f3ada4e54beae4ad44868b5627864884 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@xxxxxxxxxx>
Date: Fri, 24 Apr 2020 11:21:14 +0100
Subject: afs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH
From: David Howells <dhowells@xxxxxxxxxx>
commit 69cf3978f3ada4e54beae4ad44868b5627864884 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: 3bf0fb6f33dd ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/afs/cmservice.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/afs/cmservice.c
+++ b/fs/afs/cmservice.c
@@ -169,7 +169,7 @@ static int afs_record_cm_probe(struct af
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;
Patches currently in stable-queue which might be from dhowells@xxxxxxxxxx are
queue-5.6/afs-make-record-checking-use-task_uninterruptible-when-appropriate.patch
queue-5.6/afs-fix-to-actually-set-afs_server_fl_have_epoch.patch
