Prev: [S+Q3 13/23] slub: Move gfpflag masking out of the hotpath
Next: [S+Q3 10/23] slub: Allow removal of slab caches during boot V2
From: Christoph Lameter on 3 Aug 2010 23:00
Compiler folds the debgging functions into the critical paths.
Avoid that by adding noinline to the functions that check for
problems.

Signed-off-by: Christoph Lameter <cl(a)linux.com>

---
mm/slub.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c 2010-07-29 18:32:26.000000000 -0500
+++ linux-2.6/mm/slub.c 2010-07-29 18:32:33.000000000 -0500
@@ -857,7 +857,7 @@ static void setup_object_debug(struct km
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))
@@ -897,8 +897,8 @@ 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;

--
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: [S+Q3 13/23] slub: Move gfpflag masking out of the hotpath
Next: [S+Q3 10/23] slub: Allow removal of slab caches during boot V2