tree 7c6e96b8f9e95ba81e322833363398df119102e0
parent 436814e61f5c526ed123853a9bf63fb2ff4ff94b
author David Rientjes <rientjes@google.com> 1340221980 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1340228375 -0700

mm, thp: print useful information when mmap_sem is unlocked in zap_pmd_range

Andrea asked for addr, end, vma->vm_start, and vma->vm_end to be emitted
when !rwsem_is_locked(&tlb->mm->mmap_sem).  Otherwise, debugging the
underlying issue is more difficult.

Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>