From: Cliff Wickman <cpw@sgi.com>
Date: Tue, 25 Sep 2007 04:24:41 +0000 (-0700)
Subject: fix "mspec: handle shrinking virtual memory areas"
X-Git-Tag: v2.6.23-rc9~54
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=afa684f6fda6086b229348f0ea21df7c8ad17964;p=pandora-kernel.git

fix "mspec: handle shrinking virtual memory areas"

The vma_data structure may be shared by vma's from multiple tasks, with no
way of knowing which areas are shared or not shared, so release/clear pages
only when the refcount (of vma's) goes to zero.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: Jes Sorensen <jes@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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