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authorScott Mayhew <smayhew@redhat.com>2012-10-16 13:22:19 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-11-17 13:16:11 -0800
commitb37d05604ce92f1c118fb6aeb2af8af71998d3e7 (patch)
tree42f5d3b95c8b66059aaa410c182ea92122bbdab9 /fs/nfs
parent1feb89af489539f927fc9ff0de99c945eec181c2 (diff)
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nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts
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 <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/mount_clnt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 8e65c7f1f87..015f71f8f62 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -181,7 +181,7 @@ int nfs_mount(struct nfs_mount_request *info)
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)