From 1b27d05b6e21249d2338be26dfcbe8f8d8ff8a5b Mon Sep 17 00:00:00 2001
From: Pekka Enberg
Date: Mon, 28 Apr 2008 02:12:22 -0700
Subject: mm: move cache_line_size() to <linux/cache.h>

Not all architectures define cache_line_size() so as suggested by Andrew move
the private implementations in mm/slab.c and mm/slob.c to <linux/cache.h>.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/slab.c | 4 ----
 mm/slub.c | 5 -----
 2 files changed, 9 deletions(-)

(limited to 'mm')

diff --git a/mm/slab.c b/mm/slab.c
index 7bc4a136846e..39d20f8a0791 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -139,10 +139,6 @@
 #define	BYTES_PER_WORD		sizeof(void *)
 #define	REDZONE_ALIGN		max(BYTES_PER_WORD, __alignof__(unsigned long long))
 
-#ifndef cache_line_size
-#define cache_line_size()	L1_CACHE_BYTES
-#endif
-
 #ifndef ARCH_KMALLOC_MINALIGN
 /*
  * Enforce a minimum alignment for the kmalloc caches.
diff --git a/mm/slub.c b/mm/slub.c
index 48fff83a1e9d..38914bc64aca 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -207,11 +207,6 @@ static inline void ClearSlabDebug(struct page *page)
 #define __KMALLOC_CACHE		0x20000000 /* objects freed using kfree */
 #define __PAGE_ALLOC_FALLBACK	0x10000000 /* Allow fallback to page alloc */
 
-/* Not all arches define cache_line_size */
-#ifndef cache_line_size
-#define cache_line_size()	L1_CACHE_BYTES
-#endif
-
 static int kmem_size = sizeof(struct kmem_cache);
 
 #ifdef CONFIG_SMP
-- 
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