on_each_cpu(): kill unused 'retry' parameter

It's not even passed on to smp_call_function() anymore, since that
was removed. So kill it.

Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2f55295..5324234 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -918,7 +918,7 @@
  */
 void drain_all_pages(void)
 {
-	on_each_cpu(drain_local_pages, NULL, 0, 1);
+	on_each_cpu(drain_local_pages, NULL, 1);
 }
 
 #ifdef CONFIG_HIBERNATION
diff --git a/mm/slab.c b/mm/slab.c
index 046607f..0772abb 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2454,7 +2454,7 @@
 	struct kmem_list3 *l3;
 	int node;
 
-	on_each_cpu(do_drain, cachep, 1, 1);
+	on_each_cpu(do_drain, cachep, 1);
 	check_irq_on();
 	for_each_online_node(node) {
 		l3 = cachep->nodelists[node];
@@ -3939,7 +3939,7 @@
 	}
 	new->cachep = cachep;
 
-	on_each_cpu(do_ccupdate_local, (void *)new, 1, 1);
+	on_each_cpu(do_ccupdate_local, (void *)new, 1);
 
 	check_irq_on();
 	cachep->batchcount = batchcount;
diff --git a/mm/slub.c b/mm/slub.c
index 0987d1c..44715eb 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1497,7 +1497,7 @@
 static void flush_all(struct kmem_cache *s)
 {
 #ifdef CONFIG_SMP
-	on_each_cpu(flush_cpu_slab, s, 1, 1);
+	on_each_cpu(flush_cpu_slab, s, 1);
 #else
 	unsigned long flags;