[PATCH v2 13/17] mm/kasan: Make quarantine_lock a terminal lock

Waiman Long
2018-11-19T18:57:45Z

By making quarantine_lock a terminal spinlock, it reduces the lockdep
overhead when this lock is being used.

Signed-off-by: Waiman Long <longman@redhat.com>
---
mm/kasan/quarantine.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c
index b209dba..c9d36ab 100644
--- a/mm/kasan/quarantine.c
+++ b/mm/kasan/quarantine.c
@@ -103,7 +103,7 @@ static void qlist_move_all(struct qlist_head *from, struct qlist_head *to)
static int quarantine_tail;
/* Total size of all objects in global_quarantine across all batches. */
static unsigned long quarantine_size;
-static DEFINE_RAW_SPINLOCK(quarantine_lock);
+static DEFINE_RAW_TERMINAL_SPINLOCK(quarantine_lock);
DEFINE_STATIC_SRCU(remove_cache_srcu);

/* Maximum size of the global queue. */
--
1.8.3.1