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| author | Andrea Arcangeli <aarcange@redhat.com> | 2017-02-22 15:42:12 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 16:41:28 -0800 |
| commit | 8474901a33d8a27958bfa99e78736863abd67874 (patch) | |
| tree | 9163a3aafeff6d7854ed7b567af7633eece19eea /fs/userfaultfd.c | |
| parent | a4605a61d642fe9b9de050d356432ecac82cc701 (diff) | |
| download | lwn-8474901a33d8a27958bfa99e78736863abd67874.tar.gz lwn-8474901a33d8a27958bfa99e78736863abd67874.zip | |
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: Andrea 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/userfaultfd.c')
| -rw-r--r-- | fs/userfaultfd.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index cf1856cb25d2..71e917387ec3 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -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; } } |