From dc0a7f7558dd52e972408ebb535b0153c06d08c2 Mon Sep 17 00:00:00 2001 From: Pengfei Li Date: Sat, 30 Nov 2019 17:49:25 -0800 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@gmail.com Signed-off-by: Pengfei Li Acked-by: Vlastimil Babka Acked-by: Roman Gushchin Acked-by: David Rientjes Cc: Christoph Lameter Cc: Joonsoo Kim Cc: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/slab.h | 20 -------------------- mm/slab.c | 5 +++-- mm/slab_common.c | 5 ++--- 3 files changed, 5 insertions(+), 25 deletions(-) diff --git a/include/linux/slab.h b/include/linux/slab.h index 4d2a2fa55ed5..877a95c6a2d2 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -561,26 +561,6 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags) 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 diff --git a/mm/slab.c b/mm/slab.c index 66b3310b42b8..f1e1840af533 100644 --- a/mm/slab.c +++ b/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(); diff --git a/mm/slab_common.c b/mm/slab_common.c index 68a8c294ca89..b67cbe464338 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1286,11 +1286,10 @@ void __init create_kmalloc_caches(slab_flags_t flags) 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 -- cgit v1.2.3