From 96d8dbb6f65041b670a79e8ae76f67cc11dee203 Mon Sep 17 00:00:00 2001 From: Vlastimil Babka Date: Fri, 23 Feb 2024 19:27:19 +0100 Subject: mm, slab, kasan: replace kasan_never_merge() with SLAB_NO_MERGE The SLAB_KASAN flag prevents merging of caches in some configurations, which is handled in a rather complicated way via kasan_never_merge(). Since we now have a generic SLAB_NO_MERGE flag, we can instead use it for KASAN caches in addition to SLAB_KASAN in those configurations, and simplify the SLAB_NEVER_MERGE handling. Tested-by: Xiongwei Song Reviewed-by: Chengming Zhou Reviewed-by: Andrey Konovalov Tested-by: David Rientjes Signed-off-by: Vlastimil Babka --- include/linux/kasan.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kasan.h b/include/linux/kasan.h index dbb06d789e74..70d6a8f6e25d 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -429,7 +429,6 @@ struct kasan_cache { }; size_t kasan_metadata_size(struct kmem_cache *cache, bool in_object); -slab_flags_t kasan_never_merge(void); void kasan_cache_create(struct kmem_cache *cache, unsigned int *size, slab_flags_t *flags); @@ -446,11 +445,6 @@ static inline size_t kasan_metadata_size(struct kmem_cache *cache, { return 0; } -/* And thus nothing prevents cache merging. */ -static inline slab_flags_t kasan_never_merge(void) -{ - return 0; -} /* And no cache-related metadata initialization is required. */ static inline void kasan_cache_create(struct kmem_cache *cache, unsigned int *size, -- cgit v1.2.3