The patch titled
Subject: userfaultfd: convert BUG() to WARN_ON_ONCE()
has been removed from the -mm tree. Its filename was
userfaultfd-convert-bug-to-warn_on_once.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Subject: 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@xxxxxxxxxx
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: "Dr. David Alan Gilbert" <dgilbert@xxxxxxxxxx>
Cc: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>
Cc: Michael Rapoport <RAPOPORT@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/userfaultfd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN fs/userfaultfd.c~userfaultfd-convert-bug-to-warn_on_once fs/userfaultfd.c
--- a/fs/userfaultfd.c~userfaultfd-convert-bug-to-warn_on_once
+++ a/fs/userfaultfd.c
@@ -574,7 +574,8 @@ static unsigned int userfaultfd_poll(str
ret = POLLIN;
return ret;
default:
- BUG();
+ WARN_ON_ONCE(1);
+ return POLLERR;
}
}
_
Patches currently in -mm which might be from aarcange@xxxxxxxxxx are
userfaultfd-mcopy_atomic-return-enoent-when-no-compatible-vma-found-fix-2.patch
userfaultfd-mcopy_atomic-return-enoent-when-no-compatible-vma-found-fix-2-fix-fix.patch
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