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

[Lance Roy]

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 <ldr...@gmail.com>
Cc: Alexander Viro <v...@zeniv.linux.org.uk>
Cc: <linux-fsde...@vger.kernel.org>
---
 fs/userfaultfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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))
-- 
2.19.0