From: Johannes Weiner <hannes@cmpxchg.org>
Date: Mon, 24 May 2010 21:32:11 +0000 (-0700)
Subject: mincore: do nested page table walks
X-Git-Tag: v2.6.35-rc1~387
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e48293fd75b3aa67f43ad6e3d2ff397caa55d58b;p=pandora-kernel.git

mincore: do nested page table walks

Do page table walks with the well-known nested loops we use in several
other places already.

This avoids doing full page table walks after every pte range and also
allows to handle unmapped areas bigger than one pte range in one go.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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