slub: add lock debugging check

Ingo noticed that the SLUB code does include the lock debugging free
check.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <clameter@sgi.com>

diff --git a/mm/slub.c b/mm/slub.c
index 9b2d617..221809f 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1656,6 +1656,7 @@ static void __always_inline slab_free(struct kmem_cache *s,
        unsigned long flags;
 
        local_irq_save(flags);
+       debug_check_no_locks_freed(object, s->objsize);
        if (likely(page == s->cpu_slab[smp_processor_id()] &&
                                                !SlabDebug(page))) {
                object[page->offset] = page->lockless_freelist;