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| author | Minchan Kim <minchan.kim@gmail.com> | 2010-04-14 23:58:36 +0900 |
|---|---|---|
| committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2010-05-22 10:57:31 +0300 |
| commit | 6b65aaf3027c4e02b42aaefd900aa79136a30681 (patch) | |
| tree | a5a9b5cb55af436f9216729b734c92ee919a66d1 /mm/slub.c | |
| parent | d3e14aa336b37df76ae875fa051dfdb0e765ddf9 (diff) | |
| download | lwn-6b65aaf3027c4e02b42aaefd900aa79136a30681.tar.gz lwn-6b65aaf3027c4e02b42aaefd900aa79136a30681.zip | |
slub: Use alloc_pages_exact_node() for page allocation
The alloc_slab_page() in SLUB uses alloc_pages() if node is '-1'. This means
that node validity check in alloc_pages_node is unnecessary and we can use
alloc_pages_exact_node() to avoid comparison and branch as commit
6484eb3e2a81807722 ("page allocator: do not check NUMA node ID when the caller
knows the node is valid") did for the page allocator.
Cc: Christoph Lameter <cl@linux-foundation.org>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index 52ae5a538180..2cdd235cb801 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1084,7 +1084,7 @@ static inline struct page *alloc_slab_page(gfp_t flags, int node, if (node == -1) return alloc_pages(flags, order); else - return alloc_pages_node(node, flags, order); + return alloc_pages_exact_node(node, flags, order); } static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node) |