Commit f9b7ebdf authored Mar 18, 2014 by Trond Myklebust

NFSv4: Schedule recovery if nfs40_walk_client_list() is interrupted



If a timeout or a signal interrupts the NFSv4 trunking discovery
SETCLIENTID_CONFIRM call, then we don't know whether or not the
server has changed the callback identifier on us.
Assume that it did, and schedule a 'path down' recovery...

Tested-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

parent 706cb8db

fs/nfs/nfs4client.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -531,6 +531,13 @@ int nfs40_walk_client_list(struct nfs_client *new,
		*result = pos;
		dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
		__func__, pos, atomic_read(&pos->cl_count));
		goto out;
		case -ERESTARTSYS:
		case -ETIMEDOUT:
		/* The callback path may have been inadvertently
		* changed. Schedule recovery!
		*/
		nfs4_schedule_path_down_recovery(pos);
		default:
		goto out;
		}