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Date: Mon, 11 Nov 2002 10:35:47 -0800
From: Andrew Morton <akpm@digeo.com>
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To: Hugh Dickins <hugh@veritas.com>
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       "David S. Miller" <davem@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] flush_cache_page while pte valid
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Hugh Dickins wrote:
> 
> On some architectures (cachetlb.txt gives HyperSparc as an example)
> it is essential to flush_cache_page while pte is still valid: the
> rmap VM diverged from the base 2.4 VM before that fix was made,
> so this error has crept back into 2.5.

OK, thanks.

> Patch below applies to 2.5.47 or 2.5.47-mm1 - needs more work over
> shared pagetables, but they've silently fallen out of 2.5.47-mm1:
> oversight?

Yes, oversight.  dcache-rcu was similarly lost.  Pathetic, isn't it?