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Date: Thu, 26 Jul 2001 14:29:00 +0200 (CEST)
From: Ingo Molnar <mingo@elte.hu>
Reply-To: <mingo@elte.hu>
To: Anton Blanchard <anton@samba.org>
Cc: <linux-kernel@vger.kernel.org>
Subject: highmem-2.4.7-A0 [Re: kmap() while holding spinlock]
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> [...] or to do the clearing (and copying) speculatively, after
> allocating the page but before locking the pagetable lock. This might
> lead to a bit more work in the pagefault-race case, but we dont care
> about that window. It will on the other hand reduce pagetable_lock
> contention (because the clearing/copying is done outside the lock), so
> perhaps this solution is better.

the attached highmem-2.4.7-A0 patch implements this method in both
affected functions. Comments?

	Ingo

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