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

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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>

Bug: 64145065
(cherry-picked from f7376aed6c)
Change-Id: I9c8ae37791ab10c746414322a672bdf0ebd1ed9f
Signed-off-by: Paul Lawrence <paullawrence@google.com>
This commit is contained in:
Andrey Ryabinin
2016-08-02 14:02:46 -07:00
committed by Amit Pundir
parent d03c2b3be0
commit 362ec928f5
1 changed files with 6 additions and 2 deletions
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8
mm/kasan/quarantine.c
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@@ -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);
unsigned long flags;
local_irq_save(flags);
if (IS_ENABLED(CONFIG_SLAB))
local_irq_save(flags);
alloc_info->state = KASAN_STATE_FREE;
___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)