From: Christoph Lameter <cl@linux.com>
Date: Fri, 20 Aug 2010 17:37:12 +0000 (-0500)
Subject: slub: Force no inlining of debug functions
X-Git-Tag: v2.6.37-rc1~141^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1537066c69bee9ebc4b998626c532ce1724d4e67;p=profile%2Fivi%2Fkernel-x86-ivi.git

slub: Force no inlining of debug functions

Compiler folds the debgging functions into the critical paths.
Avoid that by adding noinline to the functions that check for
problems.

Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

diff --git a/mm/slub.c b/mm/slub.c
index 13fffe1..d28ee64 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -862,7 +862,7 @@ static void setup_object_debug(struct kmem_cache *s, struct page *page,
 	init_tracking(s, object);
 }
 
-static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
+static noinline int alloc_debug_processing(struct kmem_cache *s, struct page *page,
 					void *object, unsigned long addr)
 {
 	if (!check_slab(s, page))
@@ -902,8 +902,8 @@ bad:
 	return 0;
 }
 
-static int free_debug_processing(struct kmem_cache *s, struct page *page,
-					void *object, unsigned long addr)
+static noinline int free_debug_processing(struct kmem_cache *s,
+		 struct page *page, void *object, unsigned long addr)
 {
 	if (!check_slab(s, page))
 		goto fail;