diff mbox series

[RFC,12/12] mm/kasan: Make quarantine_lock a terminal lock

Message ID 1541709268-3766-13-git-send-email-longman@redhat.com (mailing list archive)
State New, archived
Headers show
Series locking/lockdep: Add a new class of terminal locks | expand

Commit Message

Waiman Long Nov. 8, 2018, 8:34 p.m. UTC 
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(-)
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Patch

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. */