forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mm/kasan, slub: don't disable interrupts when object leaves quarantine

Browse source 
SLUB doesn't require disabled interrupts to call ___cache_free().

Link: http://lkml.kernel.org/r/1470062715-14077-3-git-send-email-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrey Ryabinin 2016-08-02 14:02:46 -07:00 • committed by Linus Torvalds
parent 4b3ec5a3f4
commit f7376aed6c
1 changed files with 6 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

8
mm/kasan/quarantine.c
View file

@ -147,10 +147,14 @@ static void qlink_free(struct qlist_node *qlink, struct kmem_cache *cache)
struct kasan_alloc_meta *alloc_info = get_alloc_info(cache, object); struct kasan_alloc_meta *alloc_info = get_alloc_info(cache, object);
unsigned long flags; unsigned long flags;
local_irq_save(flags); if (IS_ENABLED(CONFIG_SLAB))
local_irq_save(flags);
alloc_info->state = KASAN_STATE_FREE; alloc_info->state = KASAN_STATE_FREE;
___cache_free(cache, object, _THIS_IP_); ___cache_free(cache, object, _THIS_IP_);
local_irq_restore(flags);
if (IS_ENABLED(CONFIG_SLAB))
local_irq_restore(flags);
} }
static void qlist_free_all(struct qlist_head *q, struct kmem_cache *cache) static void qlist_free_all(struct qlist_head *q, struct kmem_cache *cache)