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Commit 8474901a authored by Andrea Arcangeli's avatar Andrea Arcangeli Committed by Linus Torvalds
Browse files

userfaultfd: convert BUG() to WARN_ON_ONCE() 

Avoid BUG_ON()s and only WARN instead.  This is just a cleanup, it can't
make any runtime difference.  This BUG_ON has never triggered and cannot
trigger.

Link: http://lkml.kernel.org/r/20161216144821.5183-4-aarcange@redhat.com


Signed-off-by: default avatarAndrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Michael Rapoport <RAPOPORT@il.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a4605a61

fs/userfaultfd.c

+2 −1
Original line number Diff line number Diff line
@@ -574,7 +574,8 @@ static unsigned int userfaultfd_poll(struct file *file, poll_table *wait) 
			ret = POLLIN;

		return ret;

	default:

		BUG();

		WARN_ON_ONCE(1);

		return POLLERR;

	}

}