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Date: 4 Oct 2003 10:29:17 +0200
Date: Sat, 4 Oct 2003 10:29:17 +0200
From: Andi Kleen <ak@colin2.muc.de>
To: Andrew Morton <akpm@osdl.org>
Cc: Andi Kleen <ak@muc.de>, joe.korty@ccur.com, linux-kernel@vger.kernel.org
Subject: Re: mlockall and mmap of IO devices don't mix
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References: <CFYv.787.23@gated-at.bofh.it> <m34qyp7ae4.fsf@averell.firstfloor.org> <20031004004246.13d1f977.akpm@osdl.org>
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> It is not a trivial thing to do now we no longer have a single mem_map[].

2.4/DISCONTIGMEM also didn't have a single mem_map and it worked there
fine.

I implemented it for x86-64. Arguably it was a bit ugly, but not too bad.

-Andi