From: Dave Hansen <dave@linux.vnet.ibm.com>
Date: Tue, 20 Sep 2011 22:19:41 +0000 (-0700)
Subject: teach /proc/$pid/numa_maps about transparent hugepages
X-Git-Tag: v3.1-rc7~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32ef43848f283e0ef945d3c67e851c143fea3970;p=pandora-kernel.git

teach /proc/$pid/numa_maps about transparent hugepages

This is modeled after the smaps code.

It detects transparent hugepages and then does a single gather_stats()
for the page as a whole.  This has two benifits:
 1. It is more efficient since it does many pages in a single shot.
 2. It does not have to break down the huge page.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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