diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2022-09-05 23:05:19 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-03 14:02:56 -0700 |
| commit | ccf643e6dacf33ec618bd64e10eb0347173ad482 (patch) | |
| tree | 68dbea643d209a0590ec805e5c705fd70561caa2 /mm/kasan/common.c | |
| parent | 196894a6e20273d78479bdf76eec3a741e72d31c (diff) | |
kasan: split save_alloc_info implementations
Provide standalone implementations of save_alloc_info() for the Generic
and tag-based modes.
For now, the implementations are the same, but they will diverge later in
the series.
Link: https://lkml.kernel.org/r/77f1a078489c1e859aedb5403f772e5e1f7410a0.1662411799.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/kasan/common.c')
| -rw-r--r-- | mm/kasan/common.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 6a75237ed308..93e64e1b4413 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -424,15 +424,6 @@ void __kasan_slab_free_mempool(void *ptr, unsigned long ip) } } -static void save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags) -{ - struct kasan_alloc_meta *alloc_meta; - - alloc_meta = kasan_get_alloc_meta(cache, object); - if (alloc_meta) - kasan_set_track(&alloc_meta->alloc_track, flags); -} - void * __must_check __kasan_slab_alloc(struct kmem_cache *cache, void *object, gfp_t flags, bool init) { @@ -463,7 +454,7 @@ void * __must_check __kasan_slab_alloc(struct kmem_cache *cache, /* Save alloc info (if possible) for non-kmalloc() allocations. */ if (kasan_stack_collection_enabled() && !cache->kasan_info.is_kmalloc) - save_alloc_info(cache, (void *)object, flags); + kasan_save_alloc_info(cache, (void *)object, flags); return tagged_object; } @@ -509,7 +500,7 @@ static inline void *____kasan_kmalloc(struct kmem_cache *cache, * This also rewrites the alloc info when called from kasan_krealloc(). */ if (kasan_stack_collection_enabled() && cache->kasan_info.is_kmalloc) - save_alloc_info(cache, (void *)object, flags); + kasan_save_alloc_info(cache, (void *)object, flags); /* Keep the tag that was set by kasan_slab_alloc(). */ return (void *)object; |