From 86c562a9d6683063e071692fe14e0a18e64ee1be Mon Sep 17 00:00:00 2001
From: Christoph Lameter <clameter@engr.sgi.com>
Date: Wed, 18 Jan 2006 17:42:37 -0800
Subject: [PATCH] mm: optimize numa policy handling in slab allocator

Move the interrupt check from slab_node into ___cache_alloc and adds an
"unlikely()" to avoid pipeline stalls on some architectures.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 mm/mempolicy.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'mm/mempolicy.c')

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 71430d4..7379018 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -982,9 +982,6 @@ static unsigned interleave_nodes(struct mempolicy *policy)
  */
 unsigned slab_node(struct mempolicy *policy)
 {
-	if (in_interrupt())
-		return numa_node_id();
-
 	switch (policy->policy) {
 	case MPOL_INTERLEAVE:
 		return interleave_nodes(policy);
-- 
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