From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 18:13:53 +0000 (-0400)
Subject: NFS: Handle NFS4ERR_LEASE_MOVED during async RENEW
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f8aba1e8d509c0db7a82893e595a7743ce07ea83;p=linux-beck.git

NFS: Handle NFS4ERR_LEASE_MOVED during async RENEW

With NFSv4 minor version 0, the asynchronous lease RENEW
heartbeat can return NFS4ERR_LEASE_MOVED.  Error recovery logic for
async RENEW is a separate code path from the generic NFS proc paths,
so it must be updated to handle NFS4ERR_LEASE_MOVED as well.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 9f2ccf7471ee..8aa8ff3fd5e7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4235,7 +4235,13 @@ static void nfs4_renew_done(struct rpc_task *task, void *calldata)
 	unsigned long timestamp = data->timestamp;
 
 	trace_nfs4_renew_async(clp, task->tk_status);
-	if (task->tk_status < 0) {
+	switch (task->tk_status) {
+	case 0:
+		break;
+	case -NFS4ERR_LEASE_MOVED:
+		nfs4_schedule_lease_moved_recovery(clp);
+		break;
+	default:
 		/* Unless we're shutting down, schedule state recovery! */
 		if (test_bit(NFS_CS_RENEWD, &clp->cl_res_state) == 0)
 			return;