SLUB: use atomic_long_read for atomic_long variables

SLUB is using atomic_read() for variables declared atomic_long_t.
Switch to atomic_long_read().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/slub.c b/mm/slub.c
index 69d02e3e439ec260ca273d39156ca31134232e8c..0c106d73f9c5195d6819a0f298e551a4d580159c 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3112,7 +3112,7 @@ static int list_locations(struct kmem_cache *s, char *buf,
                unsigned long flags;
                struct page *page;
 
-               if (!atomic_read(&n->nr_slabs))
+               if (!atomic_long_read(&n->nr_slabs))
                        continue;
 
                spin_lock_irqsave(&n->list_lock, flags);
@@ -3247,7 +3247,7 @@ static unsigned long slab_objects(struct kmem_cache *s,
                }
 
                if (flags & SO_FULL) {
-                       int full_slabs = atomic_read(&n->nr_slabs)
+                       int full_slabs = atomic_long_read(&n->nr_slabs)
                                        - per_cpu[node]
                                        - n->nr_partial;
 
@@ -3283,7 +3283,7 @@ static int any_slab_objects(struct kmem_cache *s)
        for_each_node(node) {
                struct kmem_cache_node *n = get_node(s, node);
 
-               if (n->nr_partial || atomic_read(&n->nr_slabs))
+               if (n->nr_partial || atomic_long_read(&n->nr_slabs))
                        return 1;
        }
        return 0;