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SLUB: Use ->objsize from struct kmem_cache_cpu in slab_free()

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There's no reason to use ->objsize from struct kmem_cache in slab_free() for
the SLAB_DEBUG_OBJECTS case. All it does is generate extra cache pressure as we
try very hard not to touch struct kmem_cache in the fast-path.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
This commit is contained in:
Pekka Enberg 2009-01-14 12:22:25 +02:00
parent a6525042bf
commit 6047a007d0
1 changed files with 1 additions and 1 deletions
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2
mm/slub.c
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@ -1724,7 +1724,7 @@ static __always_inline void slab_free(struct kmem_cache *s,
c = get_cpu_slab(s, smp_processor_id());
debug_check_no_locks_freed(object, c->objsize);
if (!(s->flags & SLAB_DEBUG_OBJECTS))
debug_check_no_obj_freed(object, s->objsize);
debug_check_no_obj_freed(object, c->objsize);
if (likely(page == c->page && c->node >= 0)) {
object[c->offset] = c->freelist;
c->freelist = object;