kasan: introduce set_alloc_info
Add set_alloc_info() helper and move kasan_set_track() into it. This will
simplify the code for one of the upcoming changes.
No functional changes.
Link: https://lkml.kernel.org/r/b2393e8f1e311a70fc3aaa2196461b6acdee7d21.1606162397.git.andreyknvl@google.com
Link: https://linux-review.googlesource.com/id/I0316193cbb4ecc9b87b7c2eee0dd79f8ec908c1a
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 11bc85c..6c38fd0 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -323,6 +323,11 @@ bool kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip)
return __kasan_slab_free(cache, object, ip, true);
}
+static void set_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags)
+{
+ kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags);
+}
+
static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object,
size_t size, gfp_t flags, bool keep_tag)
{
@@ -350,7 +355,7 @@ static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object,
KASAN_KMALLOC_REDZONE);
if (cache->flags & SLAB_KASAN)
- kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags);
+ set_alloc_info(cache, (void *)object, flags);
return set_tag(object, tag);
}