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| author | Ezequiel Garcia <elezegarcia@gmail.com> | 2012-10-19 09:33:11 -0300 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2012-10-31 08:51:35 +0200 |
| commit | fe74fe2bf293d061826f0d7afc2ca8456bdbb40e (patch) | |
| tree | 6350a32c300e3ff74b4ff52355f98a751f6a2442 /mm/slob.c | |
| parent | 999d8795d438d396936811b185428d70b7b7de6d (diff) | |
| download | lwn-fe74fe2bf293d061826f0d7afc2ca8456bdbb40e.tar.gz lwn-fe74fe2bf293d061826f0d7afc2ca8456bdbb40e.zip | |
mm/slob: Use object_size field in kmem_cache_size()
Fields object_size and size are not the same: the latter might include
slab metadata. Return object_size field in kmem_cache_size().
Also, improve trace accuracy by correctly tracing reported size.
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slob.c')
| -rw-r--r-- | mm/slob.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/slob.c b/mm/slob.c index 06a5ec70e728..287a88aa4a61 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -554,12 +554,12 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node) if (c->size < PAGE_SIZE) { b = slob_alloc(c->size, flags, c->align, node); - trace_kmem_cache_alloc_node(_RET_IP_, b, c->size, + trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size, SLOB_UNITS(c->size) * SLOB_UNIT, flags, node); } else { b = slob_new_pages(flags, get_order(c->size), node); - trace_kmem_cache_alloc_node(_RET_IP_, b, c->size, + trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size, PAGE_SIZE << get_order(c->size), flags, node); } @@ -606,7 +606,7 @@ EXPORT_SYMBOL(kmem_cache_free); unsigned int kmem_cache_size(struct kmem_cache *c) { - return c->size; + return c->object_size; } EXPORT_SYMBOL(kmem_cache_size); |