workqueue: use WQ_MEM_RECLAIM instead of WQ_RESCUER

WQ_RESCUER is now an internal flag and should only be used in the
workqueue implementation proper.  Use WQ_MEM_RECLAIM instead.

This doesn't introduce any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: dm-devel@redhat.com
Cc: Neil Brown <neilb@suse.de>
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index d851242..0855acd 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1505,7 +1505,7 @@
 {
 	struct workqueue_struct *wq;
 	dprintk("RPC:       creating workqueue nfsiod\n");
-	wq = alloc_workqueue("nfsiod", WQ_RESCUER, 0);
+	wq = alloc_workqueue("nfsiod", WQ_MEM_RECLAIM, 0);
 	if (wq == NULL)
 		return -ENOMEM;
 	nfsiod_workqueue = wq;