SLUB doesn't require disabled interrupts to call ___cache_free(). Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Andrey Ryabinin <[email protected]> Acked-by: Alexander Potapenko <[email protected]> Cc: Dmitry Vyukov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
https://jira.sw.ru/browse/PSBM-69081 (cherry picked from commit f7376aed6c032aab820fa36806a89e16e353a0d9) Signed-off-by: Andrey Ryabinin <[email protected]> --- mm/kasan/quarantine.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c index 65793f150d1f..4852625ff851 100644 --- a/mm/kasan/quarantine.c +++ b/mm/kasan/quarantine.c @@ -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) -- 2.13.5 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
