Messages in this thread Patch in this message | | | From | Feng Tang <> | Subject | [PATCH -next 1/2] mm/slab: add is_kmalloc_cache() helper macro | Date | Mon, 21 Nov 2022 21:50:23 +0800 |
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commit 6edf2576a6cc ("mm/slub: enable debugging memory wasting of kmalloc") introduces 'SLAB_KMALLOC' bit specifying whether a kmem_cache is a kmalloc cache for slab/slub (slob doesn't have dedicated kmalloc caches).
Add a helper macro for other components like kasan to simplify code.
Signed-off-by: Feng Tang <feng.tang@intel.com> --- include/linux/slab.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/slab.h b/include/linux/slab.h index 1c670c16c737..ee6499088ad3 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -758,6 +758,12 @@ extern void kvfree_sensitive(const void *addr, size_t len); unsigned int kmem_cache_size(struct kmem_cache *s); +#ifndef CONFIG_SLOB +#define is_kmalloc_cache(s) ((s)->flags & SLAB_KMALLOC) +#else +#define is_kmalloc_cache(s) (false) +#endif + /** * kmalloc_size_roundup - Report allocation bucket size for the given size * -- 2.34.1
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