The patch titled
Subject: mm, slab: remove unused kmalloc_size()
has been added to the -mm tree. Its filename is
mm-slab-remove-unused-kmalloc_size.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slab-remove-unused-kmalloc_size.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slab-remove-unused-kmalloc_size.patch
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------------------------------------------------------
From: Pengfei Li <lpf.vector@xxxxxxxxx>
Subject: mm, slab: remove unused kmalloc_size()
The size of kmalloc can be obtained from kmalloc_info[], so remove
kmalloc_size() that will not be used anymore.
Link: http://lkml.kernel.org/r/1569241648-26908-3-git-send-email-lpf.vector@xxxxxxxxx
Signed-off-by: Pengfei Li <lpf.vector@xxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Acked-by: Roman Gushchin <guro@xxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/slab.h | 20 --------------------
mm/slab.c | 5 +++--
mm/slab_common.c | 5 ++---
3 files changed, 5 insertions(+), 25 deletions(-)
--- a/include/linux/slab.h~mm-slab-remove-unused-kmalloc_size
+++ a/include/linux/slab.h
@@ -561,26 +561,6 @@ static __always_inline void *kmalloc(siz
return __kmalloc(size, flags);
}
-/*
- * Determine size used for the nth kmalloc cache.
- * return size or 0 if a kmalloc cache for that
- * size does not exist
- */
-static __always_inline unsigned int kmalloc_size(unsigned int n)
-{
-#ifndef CONFIG_SLOB
- if (n > 2)
- return 1U << n;
-
- if (n == 1 && KMALLOC_MIN_SIZE <= 32)
- return 96;
-
- if (n == 2 && KMALLOC_MIN_SIZE <= 64)
- return 192;
-#endif
- return 0;
-}
-
static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
{
#ifndef CONFIG_SLOB
--- a/mm/slab.c~mm-slab-remove-unused-kmalloc_size
+++ a/mm/slab.c
@@ -1248,8 +1248,9 @@ void __init kmem_cache_init(void)
*/
kmalloc_caches[KMALLOC_NORMAL][INDEX_NODE] = create_kmalloc_cache(
kmalloc_info[INDEX_NODE].name[KMALLOC_NORMAL],
- kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS,
- 0, kmalloc_size(INDEX_NODE));
+ kmalloc_info[INDEX_NODE].size,
+ ARCH_KMALLOC_FLAGS, 0,
+ kmalloc_info[INDEX_NODE].size);
slab_state = PARTIAL_NODE;
setup_kmalloc_cache_index_table();
--- a/mm/slab_common.c~mm-slab-remove-unused-kmalloc_size
+++ a/mm/slab_common.c
@@ -1285,11 +1285,10 @@ void __init create_kmalloc_caches(slab_f
struct kmem_cache *s = kmalloc_caches[KMALLOC_NORMAL][i];
if (s) {
- unsigned int size = kmalloc_size(i);
-
kmalloc_caches[KMALLOC_DMA][i] = create_kmalloc_cache(
kmalloc_info[i].name[KMALLOC_DMA],
- size, SLAB_CACHE_DMA | flags, 0, 0);
+ kmalloc_info[i].size,
+ SLAB_CACHE_DMA | flags, 0, 0);
}
}
#endif
_
Patches currently in -mm which might be from lpf.vector@xxxxxxxxx are
mm-slab-make-kmalloc_info-contain-all-types-of-names.patch
mm-slab-remove-unused-kmalloc_size.patch
mm-slab_common-use-enum-kmalloc_cache_type-to-iterate-over-kmalloc-caches.patch
