From f79f177c25016647cc92ffac8afa7cb96ce47011 Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Sun, 6 May 2007 14:49:22 -0700
Subject: [PATCH] smaps: add pages referenced count to smaps

Adds an additional unsigned long field to struct mem_size_stats called
'referenced'.  For each pte walked in the smaps code, this field is
incremented by PAGE_SIZE if it has pte-reference bits.

An additional line was added to the /proc/pid/smaps output for each VMA to
indicate how many pages within it are currently marked as referenced or
accessed.

Cc: Hugh Dickins <hugh@veritas.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Christoph Lameter <clameter@sgi.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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