From: Christoph Lameter <cl@linux.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <js1304@gmail.com>,
Glauber Costa <glommer@parallels.com>,
linux-mm@kvack.org, David Rientjes <rientjes@google.com>,
elezegarcia@gmail.com
Subject: CK2 [12/15] Common definition for the array of kmalloc caches
Date: Fri, 19 Oct 2012 14:32:22 +0000 [thread overview]
Message-ID: <0000013a79706a9e-d1fe2ad5-3103-4deb-97fb-2d7a9eb7af71-000000@email.amazonses.com> (raw)
In-Reply-To: <20121019142254.724806786@linux.com>
Have a common definition fo the kmalloc cache arrays in
SLAB and SLUB
Signed-off-by: Christoph Lameter <cl@linux.com>
Index: linux/mm/slab_common.c
===================================================================
--- linux.orig/mm/slab_common.c 2012-10-19 09:12:51.826535800 -0500
+++ linux/mm/slab_common.c 2012-10-19 09:15:41.917443602 -0500
@@ -254,5 +254,13 @@ struct kmem_cache *__init create_kmalloc
return s;
}
+struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
+EXPORT_SYMBOL(kmalloc_caches);
+
+#ifdef CONFIG_ZONE_DMA
+struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
+EXPORT_SYMBOL(kmalloc_dma_caches);
+#endif
+
#endif /* !CONFIG_SLOB */
Index: linux/include/linux/slub_def.h
===================================================================
--- linux.orig/include/linux/slub_def.h 2012-10-19 09:15:19.813065713 -0500
+++ linux/include/linux/slub_def.h 2012-10-19 09:15:41.917443602 -0500
@@ -119,12 +119,6 @@ struct kmem_cache {
#endif
/*
- * We keep the general caches in an array of slab caches that are used for
- * 2^x bytes of allocations.
- */
-extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
-
-/*
* Find the slab cache for a given combination of allocation flags and size.
*
* This ought to end up with a global pointer to the right cache
Index: linux/mm/slub.c
===================================================================
--- linux.orig/mm/slub.c 2012-10-19 09:15:19.817065783 -0500
+++ linux/mm/slub.c 2012-10-19 09:15:41.921443708 -0500
@@ -3176,13 +3176,6 @@ int __kmem_cache_shutdown(struct kmem_ca
* Kmalloc subsystem
*******************************************************************/
-struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
-EXPORT_SYMBOL(kmalloc_caches);
-
-#ifdef CONFIG_ZONE_DMA
-static struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
-#endif
-
static int __init setup_slub_min_order(char *str)
{
get_option(&str, &slub_min_order);
Index: linux/include/linux/slab.h
===================================================================
--- linux.orig/include/linux/slab.h 2012-10-19 09:15:19.813065713 -0500
+++ linux/include/linux/slab.h 2012-10-19 09:15:41.921443708 -0500
@@ -200,6 +200,11 @@ struct kmem_cache {
#define KMALLOC_MIN_SIZE (1 << KMALLOC_SHIFT_LOW)
#endif
+extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
+#ifdef CONFIG_ZONE_DMA
+extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
+#endif
+
/*
* Figure out which kmalloc slab an allocation of a certain size
* belongs to.
Index: linux/mm/slab.c
===================================================================
--- linux.orig/mm/slab.c 2012-10-19 09:14:55.192644806 -0500
+++ linux/mm/slab.c 2012-10-19 09:15:41.921443708 -0500
@@ -334,14 +334,6 @@ static void free_block(struct kmem_cache
static int enable_cpucache(struct kmem_cache *cachep, gfp_t gfp);
static void cache_reap(struct work_struct *unused);
-struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
-EXPORT_SYMBOL(kmalloc_caches);
-
-#ifdef CONFIG_ZONE_DMA
-struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
-EXPORT_SYMBOL(kmalloc_dma_caches);
-#endif
-
static int slab_early_init = 1;
#define INDEX_AC kmalloc_index(sizeof(struct arraycache_init))
Index: linux/include/linux/slab_def.h
===================================================================
--- linux.orig/include/linux/slab_def.h 2012-10-19 09:14:55.188644735 -0500
+++ linux/include/linux/slab_def.h 2012-10-19 09:15:41.921443708 -0500
@@ -95,9 +95,6 @@ struct kmem_cache {
*/
};
-extern struct kmem_cache *kmalloc_caches[PAGE_SHIFT + MAX_ORDER];
-extern struct kmem_cache *kmalloc_dma_caches[PAGE_SHIFT + MAX_ORDER];
-
void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
void *__kmalloc(size_t size, gfp_t flags);
--
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next prev parent reply other threads:[~2012-10-19 14:32 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20121019142254.724806786@linux.com>
2012-10-19 14:25 ` CK2 [01/15] slab: Simplify bootstrap Christoph Lameter
2012-10-22 7:57 ` Glauber Costa
2012-10-23 20:45 ` Christoph Lameter
2012-10-19 14:25 ` CK2 [02/15] create common functions for boot slab creation Christoph Lameter
2012-10-20 15:57 ` JoonSoo Kim
2012-10-19 14:32 ` CK2 [14/15] stat: Use size_t for sizes instead of unsigned Christoph Lameter
2012-10-22 8:42 ` Glauber Costa
2012-10-19 14:32 ` CK2 [05/15] Common alignment code Christoph Lameter
2012-10-19 14:32 ` Christoph Lameter [this message]
2012-10-19 14:42 ` CK2 [15/15] Common Kmalloc cache determination Christoph Lameter
2012-10-20 16:20 ` JoonSoo Kim
2012-10-23 20:40 ` Christoph Lameter
2012-10-19 14:42 ` CK2 [13/15] Common function to create the kmalloc array Christoph Lameter
2012-10-22 9:51 ` Glauber Costa
2012-10-19 14:42 ` CK2 [04/15] slab: Use the new create_boot_cache function to simplify bootstrap Christoph Lameter
2012-10-20 16:01 ` JoonSoo Kim
2012-10-22 8:09 ` Glauber Costa
2012-10-23 21:40 ` Christoph Lameter
2012-10-19 14:45 ` CK2 [08/15] slab: Use common kmalloc_index/kmalloc_size functions Christoph Lameter
2012-10-20 16:12 ` JoonSoo Kim
2012-10-23 20:39 ` Christoph Lameter
2012-10-24 17:47 ` JoonSoo Kim
2012-10-19 14:49 ` CK2 [09/15] slab: Common name for the per node structures Christoph Lameter
2012-10-20 16:14 ` JoonSoo Kim
2012-10-23 20:39 ` Christoph Lameter
2012-10-22 8:32 ` Glauber Costa
2012-10-19 14:51 ` CK2 [07/15] Common kmalloc slab index determination Christoph Lameter
2012-10-22 9:45 ` Glauber Costa
2012-10-23 20:48 ` Christoph Lameter
2012-10-19 14:51 ` CK2 [06/15] Move kmalloc related function defs Christoph Lameter
2012-10-22 8:11 ` Glauber Costa
2012-10-19 14:51 ` CK2 [03/15] slub: Use a statically allocated kmem_cache boot structure for bootstrap Christoph Lameter
2012-10-19 14:51 ` CK2 [10/15] slab: rename nodelists to node Christoph Lameter
2012-10-22 8:34 ` Glauber Costa
2012-10-19 14:58 ` CK2 [11/15] Common constants for kmalloc boundaries Christoph Lameter
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