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Date: Mon, 03 Mar 2003 15:24:45 -0600
From: Dave McCracken <dmccr@us.ibm.com>
To: Andrew Morton <akpm@digeo.com>
cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 2.5.63] Teach page_mapped about the anon flag
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--On Monday, March 03, 2003 13:12:10 -0800 Andrew Morton <akpm@digeo.com>
wrote:

> It is.  All callers which need to be 100% accurate are under
> pte_chain_lock().

Hmm, good point.  Some places may not need perfect accuracy.  Also, if it
gives a false positive it means someone else is doing an atomic op on it,
so it's likely to be in transition to/from true anyway.

Ok, you've convinced me.  Please ignore the patch.  I'll hang onto it in
case we get proved wrong at some point.

Dave

======================================================================
Dave McCracken          IBM Linux Base Kernel Team      1-512-838-3059
dmccr@us.ibm.com                                        T/L   678-3059