diff mbox series

[10/16] userfaultfd: Replace spin_is_locked() with lockdep

Message ID 20181003053902.6910-11-ldr709@gmail.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Lance Roy Oct. 3, 2018, 5:38 a.m. UTC 
lockdep_assert_held() is better suited to checking locking requirements,
since it won't get confused when someone else holds the lock. This is
also a step towards possibly removing spin_is_locked().

Signed-off-by: Lance Roy <ldr709@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: <linux-fsdevel@vger.kernel.org>
---
 fs/userfaultfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index bfa0ec69f924..a20244ff0027 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -926,7 +926,7 @@  static inline struct userfaultfd_wait_queue *find_userfault_in(
 	wait_queue_entry_t *wq;
 	struct userfaultfd_wait_queue *uwq;
 
-	VM_BUG_ON(!spin_is_locked(&wqh->lock));
+	lockdep_assert_held(&wqh->lock);
 
 	uwq = NULL;
 	if (!waitqueue_active(wqh))