[PATCH] SLUB: use page allocator for PAGE_SIZE requests

From: Vegard Nossum
Date: Sat Nov 22 2008 - 07:27:54 EST


It seems strange that we should use the page allocator for
requests of (PAGE_SIZE + 1) bytes or more, and not for requests
that are exactly PAGE_SIZE.

Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Vegard Nossum <vegard.nossum@xxxxxxxxx>
---
include/linux/slub_def.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 2f5c16b..62ce0dc 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -212,7 +212,7 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
static __always_inline void *kmalloc(size_t size, gfp_t flags)
{
if (__builtin_constant_p(size)) {
- if (size > PAGE_SIZE)
+ if (size >= PAGE_SIZE)
return kmalloc_large(size, flags);

if (!(flags & SLUB_DMA)) {
--
1.5.6.5

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