From 46a87b8a7b939900d779042da7097bf330ab787f Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Wed, 11 Jul 2012 16:30:41 -0400 Subject: NFS: When state recovery fails, waiting tasks should exit NFSv4 state recovery is not always successful. Failure is signalled by setting the nfs_client.cl_cons_state to a negative (errno) value, then waking waiters. Currently this can happen only during mount processing. I'm about to add an explicit case where state recovery failure during normal operation should force all NFS requests waiting on that state recovery to exit. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'fs/nfs') diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 80bb5055d0b3..74dcd85f0a1d 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -258,7 +258,12 @@ static int nfs4_wait_clnt_recover(struct nfs_client *clp) res = wait_on_bit(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING, nfs_wait_bit_killable, TASK_KILLABLE); - return res; + if (res) + return res; + + if (clp->cl_cons_state < 0) + return clp->cl_cons_state; + return 0; } static int nfs4_delay(struct rpc_clnt *clnt, long *timeout) -- cgit v1.2.3-59-g8ed1b