Make sure we actually see the output of validate_mm() and browse_rb()
before triggering a BUG().  pr_info isn't shown by default so the reason
for the BUG() isn't obvious.
Signed-off-by: NSasha Levin <sasha.levin@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>