From: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Date: Wed, 9 Mar 2011 18:13:44 +0000 (-0500)
Subject: NFSv4.1: Retry CREATE_SESSION on NFS4ERR_DELAY
X-Git-Url: https://git.karo-electronics.de/?p=mv-sheeva.git;a=commitdiff_plain;h=7d6d63d6427090cbb1d282364b65b12634ca59bd

NFSv4.1: Retry CREATE_SESSION on NFS4ERR_DELAY

Fix bug where we currently retry the EXCHANGEID call again, eventhough
we already have a valid clientid.  Instead, delay and retry the CREATE_SESSION
call.

Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b07d4e23b87..d3c705aa71f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5028,10 +5028,20 @@ int nfs4_proc_create_session(struct nfs_client *clp)
 	int status;
 	unsigned *ptr;
 	struct nfs4_session *session = clp->cl_session;
+	long timeout = 0;
+	int err;
 
 	dprintk("--> %s clp=%p session=%p\n", __func__, clp, session);
 
-	status = _nfs4_proc_create_session(clp);
+	do {
+		status = _nfs4_proc_create_session(clp);
+		if (status == -NFS4ERR_DELAY) {
+			err = nfs4_delay(clp->cl_rpcclient, &timeout);
+			if (err)
+				status = err;
+		}
+	} while (status == -NFS4ERR_DELAY);
+
 	if (status)
 		goto out;