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authorChristoph Lameter <clameter@sgi.com>2008-04-14 19:11:41 +0300
committerPekka Enberg <penberg@cs.helsinki.fi>2008-04-27 18:28:18 +0300
commit31d33baf36bda7a2fea800648d87c9fe6155e7ca (patch)
treed84cdc6976f1417958a5b613541e216b9b6fbf16
parent06b285dc3d6194abe79ab9dcaaab703d6f75627c (diff)
slub: Simplify any_slab_object checks
Since we now have total_objects counter per node use that to check for the presence of any objects. The loop over all cpu slabs is not that useful since any cpu slab would require an object allocation first. So drop that. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
-rw-r--r--mm/slub.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 23a2683d6c9..06533f342be 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3775,14 +3775,6 @@ static ssize_t show_slab_objects(struct kmem_cache *s,
static int any_slab_objects(struct kmem_cache *s)
{
int node;
- int cpu;
-
- for_each_possible_cpu(cpu) {
- struct kmem_cache_cpu *c = get_cpu_slab(s, cpu);
-
- if (c && c->page)
- return 1;
- }
for_each_online_node(node) {
struct kmem_cache_node *n = get_node(s, node);
@@ -3790,7 +3782,7 @@ static int any_slab_objects(struct kmem_cache *s)
if (!n)
continue;
- if (n->nr_partial || atomic_long_read(&n->nr_slabs))
+ if (atomic_read(&n->total_objects))
return 1;
}
return 0;