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| author | Christoph Lameter <cl@linux.com> | 2011-08-09 16:12:23 -0500 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2011-08-19 19:34:25 +0300 |
| commit | 7db0d7054048da140798d8bfdd7fff5f74f85abf (patch) | |
| tree | e23816d3d5a6c25ec1037989ce4857e96440a0fa /mm | |
| parent | 69cb8e6b7c2982e015d2b35a34ac2674c79e801c (diff) | |
| download | kernel-common-7db0d7054048da140798d8bfdd7fff5f74f85abf.tar.gz kernel-common-7db0d7054048da140798d8bfdd7fff5f74f85abf.tar.bz2 kernel-common-7db0d7054048da140798d8bfdd7fff5f74f85abf.zip | |
slub: Remove useless statements in __slab_alloc
Two statements in __slab_alloc() do not have any effect.
1. c->page is already set to NULL by deactivate_slab() called right before.
2. gfpflags are masked in new_slab() before being passed to the page
allocator. There is no need to mask gfpflags in __slab_alloc in particular
since most frequent processing in __slab_alloc does not require the use of a
gfpmask.
Cc: torvalds@linux-foundation.org
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slub.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/mm/slub.c b/mm/slub.c index 30c4558acc8b..d4b76bea5dba 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2064,9 +2064,6 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, c = this_cpu_ptr(s->cpu_slab); #endif - /* We handle __GFP_ZERO in the caller */ - gfpflags &= ~__GFP_ZERO; - page = c->page; if (!page) goto new_slab; @@ -2163,7 +2160,6 @@ debug: c->freelist = get_freepointer(s, object); deactivate_slab(s, c); - c->page = NULL; c->node = NUMA_NO_NODE; local_irq_restore(flags); return object; |