linux-kernel - [PATCH 0/4] Safely removing mmaped files

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Date:	Fri, 04 Sep 2009 12:24:44 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
	<linux-fsdevel@...r.kernel.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Greg Kroah-Hartman <gregkh@...e.de>, Tejun Heo <tj@...nel.org>
Subject: [PATCH 0/4] Safely removing mmaped files

Currently when mmaped files are removed I have not found a single
instance in the kernel where we handle it correctly.  Frequently after
a hot remove we will either leak a file (with weird ensuing
consequences) or we will goof and not call vm_ops->close() which can
cause leaks.

It turns out this problem isn't too bad to actually fix and this
patchset is my generic solution.  Tested against 2.6.31-rc8 with a
process that mmaped /sys/*/*/resource0 and /proc/bus/pci/*/*.

I'm not certain what the best way to carry these patches is to get
them merged.  Andrew can you carry this patchset?

Eric
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