From: David Rientjes <rientjes@google.com>
Date: Wed, 20 Jun 2012 19:53:00 +0000 (-0700)
Subject: mm, thp: print useful information when mmap_sem is unlocked in zap_pmd_range
X-Git-Tag: v3.5-rc4~20^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0897d75f0b22e8c3a7287a48548c5686ef73447;p=pandora-kernel.git

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>
---

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