Messages in this thread Patch in this message |  | | | From | Minchan Kim <> | | Subject | [PATCH 1/6] Remove node's validity check in alloc_pages | | Date | Wed, 14 Apr 2010 00:24:58 +0900 |
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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@csn.ul.ie> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Minchan Kim <minchan.kim@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
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