This is a note to let you know that I've just added the patch titled
nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts
to the 3.6-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:
nfsv3-make-v3-mounts-fail-with-etimedouts-instead-eio-on-mountd-timeouts.patch
and it can be found in the queue-3.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From acce94e68a0f346115fd41cdc298197d2d5a59ad Mon Sep 17 00:00:00 2001
From: Scott Mayhew <[email protected]>
Date: Tue, 16 Oct 2012 13:22:19 -0400
Subject: nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd
timeouts
From: Scott Mayhew <[email protected]>
commit acce94e68a0f346115fd41cdc298197d2d5a59ad upstream.
In very busy v3 environment, rpc.mountd can respond to the NULL
procedure but not the MNT procedure in a timely manner causing
the MNT procedure to time out. The problem is the mount system
call returns EIO which causes the mount to fail, instead of
ETIMEDOUT, which would cause the mount to be retried.
This patch sets the RPC_TASK_SOFT|RPC_TASK_TIMEOUT flags to
the rpc_call_sync() call in nfs_mount() which causes
ETIMEDOUT to be returned on timed out connections.
Signed-off-by: Steve Dickson <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/nfs/mount_clnt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -181,7 +181,7 @@ int nfs_mount(struct nfs_mount_request *
else
msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC_MNT];
- status = rpc_call_sync(mnt_clnt, &msg, 0);
+ status = rpc_call_sync(mnt_clnt, &msg, RPC_TASK_SOFT|RPC_TASK_TIMEOUT);
rpc_shutdown_client(mnt_clnt);
if (status < 0)
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/nfsv3-make-v3-mounts-fail-with-etimedouts-instead-eio-on-mountd-timeouts.patch
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