From: Alexey Dobriyan <adobriyan@gmail.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, cl@linux.com, penberg@kernel.org,
rientjes@google.com, iamjoonsoo.kim@lge.com,
Alexey Dobriyan <adobriyan@gmail.com>
Subject: [PATCH 07/23] slab: make size_index_elem() unsigned int
Date: Fri, 24 Nov 2017 01:16:12 +0300 [thread overview]
Message-ID: <20171123221628.8313-7-adobriyan@gmail.com> (raw)
In-Reply-To: <20171123221628.8313-1-adobriyan@gmail.com>
size_index_elem() always work with small sizes (kmalloc cache are 32-bit)
and return small indexes.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
mm/slab_common.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 4405af3ee8eb..1cec6225fc4c 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -954,7 +954,7 @@ static u8 size_index[24] = {
2 /* 192 */
};
-static inline int size_index_elem(size_t bytes)
+static inline unsigned int size_index_elem(unsigned int bytes)
{
return (bytes - 1) / 8;
}
@@ -1023,13 +1023,13 @@ const struct kmalloc_info_struct kmalloc_info[] __initconst = {
*/
void __init setup_kmalloc_cache_index_table(void)
{
- int i;
+ unsigned int i;
BUILD_BUG_ON(KMALLOC_MIN_SIZE > 256 ||
(KMALLOC_MIN_SIZE & (KMALLOC_MIN_SIZE - 1)));
for (i = 8; i < KMALLOC_MIN_SIZE; i += 8) {
- int elem = size_index_elem(i);
+ unsigned int elem = size_index_elem(i);
if (elem >= ARRAY_SIZE(size_index))
break;
--
2.13.6
--
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next prev parent reply other threads:[~2017-11-23 22:17 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-23 22:16 [PATCH 01/23] slab: make kmalloc_index() return "unsigned int" Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 02/23] slab: make kmalloc_size() " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 03/23] slab: create_kmalloc_cache() works with 32-bit sizes Alexey Dobriyan
2017-11-24 1:06 ` Matthew Wilcox
2017-11-27 10:21 ` Alexey Dobriyan
2017-11-27 13:56 ` Matthew Wilcox
2017-11-23 22:16 ` [PATCH 04/23] slab: create_boot_cache() only " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 05/23] slab: kmem_cache_create() " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 06/23] slab: make size_index[] array u8 Alexey Dobriyan
2017-11-23 22:16 ` Alexey Dobriyan [this message]
2017-11-23 22:16 ` [PATCH 08/23] slub: make ->remote_node_defrag_ratio unsigned int Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 09/23] slub: make ->max_attr_size " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 10/23] slub: make ->red_left_pad " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 11/23] slub: make ->reserved " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 12/23] slub: make ->align " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 13/23] slub: make ->inuse " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 14/23] slub: make ->cpu_partial " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 15/23] slub: make ->offset " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 16/23] slub: make ->object_size " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 17/23] slub: make ->size " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 18/23] slab: make kmem_cache_flags accept 32-bit object size Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 19/23] kasan: make kasan_cache_create() work with 32-bit slab caches Alexey Dobriyan
2017-11-24 22:29 ` kbuild test robot
2017-11-23 22:16 ` [PATCH 20/23] slub: make slab_index() return unsigned int Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 21/23] slub: make struct kmem_cache_order_objects::x " Alexey Dobriyan
2017-11-24 17:31 ` Christopher Lameter
2017-11-27 10:17 ` Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 22/23] slub: make size_from_object() return " Alexey Dobriyan
2017-11-23 22:16 ` [PATCH 23/23] slab: use 32-bit arithmetic in freelist_randomize() Alexey Dobriyan
2017-11-28 0:36 ` [PATCH 01/23] slab: make kmalloc_index() return "unsigned int" Andrew Morton
2017-11-28 18:46 ` Christopher Lameter
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