Commit 456a7378 authored Oct 04, 2018 by Lance Roy Committed by Paul E. McKenney Nov 12, 2018

userfaultfd: Replace spin_is_locked() with lockdep

lockdep_assert_held() is better suited to checking locking requirements,
since it only checks if the current thread holds the lock regardless of
whether someone else does. 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>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

parent 97eeebea

fs/userfaultfd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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))

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