Prev: [PATCH 6/6] Add comment in alloc_pages_exact_node
Next: DMAENGINE: Support for ST-Ericssons DMA40 block v3
From: Minchan Kim on 13 Apr 2010 11:30
alloc_pages calls alloc_pages_node with numa_node_id().
alloc_pages_node can't see nid < 0.

So we can use alloc_pages_exact_node instead of alloc_pages_node.
It could avoid comparison and branch as 6484eb3e2a81807722 tried.

Cc: Mel Gorman <mel(a)csn.ul.ie>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu(a)jp.fujitsu.com>
Signed-off-by: Minchan Kim <minchan.kim(a)gmail.com>
---
include/linux/gfp.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 4c6d413..b65f003 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -308,7 +308,7 @@ extern struct page *alloc_page_vma(gfp_t gfp_mask,
struct vm_area_struct *vma, unsigned long addr);
#else
#define alloc_pages(gfp_mask, order) \
- alloc_pages_node(numa_node_id(), gfp_mask, order)
+ alloc_pages_exact_node(numa_node_id(), gfp_mask, order)
#define alloc_page_vma(gfp_mask, vma, addr) alloc_pages(gfp_mask, 0)
#endif
#define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0)
--
1.7.0.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
 | 
Pages: 1
Prev: [PATCH 6/6] Add comment in alloc_pages_exact_node
Next: DMAENGINE: Support for ST-Ericssons DMA40 block v3