From a0c3b940023eef3fa005b2bc37d9312712331dcb Mon Sep 17 00:00:00 2001 From: Hyeonggon Yoo <42.hyeyoo@gmail.com> Date: Wed, 17 Aug 2022 19:18:16 +0900 Subject: [PATCH] mm/slub: move kmalloc_large_node() to slab_common.c In later patch SLAB will also pass requests larger than order-1 page to page allocator. Move kmalloc_large_node() to slab_common.c. Fold kmalloc_large_node_hook() into kmalloc_large_node() as there is no other caller. Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Reviewed-by: Vlastimil Babka Signed-off-by: Vlastimil Babka --- include/linux/slab.h | 4 ++++ mm/slab_common.c | 22 ++++++++++++++++++++++ mm/slub.c | 25 ------------------------- 3 files changed, 26 insertions(+), 25 deletions(-) diff --git a/include/linux/slab.h b/include/linux/slab.h index 15a4c59da59e..082499306098 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -491,6 +491,10 @@ static __always_inline void *kmem_cache_alloc_node_trace(struct kmem_cache *s, g void *kmalloc_large(size_t size, gfp_t flags) __assume_page_alignment __alloc_size(1); + +void *kmalloc_large_node(size_t size, gfp_t flags, int node) __assume_page_alignment + __alloc_size(1); + /** * kmalloc - allocate memory * @size: how many bytes of memory are required. diff --git a/mm/slab_common.c b/mm/slab_common.c index 8b1988544b89..1b9101f9cb21 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -928,6 +928,28 @@ void *kmalloc_large(size_t size, gfp_t flags) } EXPORT_SYMBOL(kmalloc_large); +void *kmalloc_large_node(size_t size, gfp_t flags, int node) +{ + struct page *page; + void *ptr = NULL; + unsigned int order = get_order(size); + + flags |= __GFP_COMP; + page = alloc_pages_node(node, flags, order); + if (page) { + ptr = page_address(page); + mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE_B, + PAGE_SIZE << order); + } + + ptr = kasan_kmalloc_large(ptr, size, flags); + /* As ptr might get tagged, call kmemleak hook after KASAN. */ + kmemleak_alloc(ptr, size, 1, flags); + + return ptr; +} +EXPORT_SYMBOL(kmalloc_large_node); + #ifdef CONFIG_SLAB_FREELIST_RANDOM /* Randomize a generic freelist */ static void freelist_randomize(struct rnd_state *state, unsigned int *list, diff --git a/mm/slub.c b/mm/slub.c index f9929ba858ec..5e7819ade2c4 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1704,14 +1704,6 @@ static bool freelist_corrupted(struct kmem_cache *s, struct slab *slab, * Hooks for other subsystems that check memory allocations. In a typical * production configuration these hooks all should produce no code at all. */ -static inline void *kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags) -{ - ptr = kasan_kmalloc_large(ptr, size, flags); - /* As ptr might get tagged, call kmemleak hook after KASAN. */ - kmemleak_alloc(ptr, size, 1, flags); - return ptr; -} - static __always_inline void kfree_hook(void *x) { kmemleak_free(x); @@ -4402,23 +4394,6 @@ static int __init setup_slub_min_objects(char *str) __setup("slub_min_objects=", setup_slub_min_objects); -static void *kmalloc_large_node(size_t size, gfp_t flags, int node) -{ - struct page *page; - void *ptr = NULL; - unsigned int order = get_order(size); - - flags |= __GFP_COMP; - page = alloc_pages_node(node, flags, order); - if (page) { - ptr = page_address(page); - mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE_B, - PAGE_SIZE << order); - } - - return kmalloc_large_node_hook(ptr, size, flags); -} - static __always_inline void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller) {