linux-kernel - Re: [PATCH] Remove needless flush_dcache

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Message-ID: <20090116060124.GG31013@parisc-linux.org>
Date:	Thu, 15 Jan 2009 23:01:24 -0700
From:	Matthew Wilcox <matthew@....cx>
To:	Nick Piggin <npiggin@...e.de>
Cc:	MinChan Kim <minchan.kim@...il.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
	akpm@...ux-foundation.org, linux-parisc@...r.kernel.org
Subject: Re: [PATCH] Remove needless flush_dcache_page call

On Fri, Jan 16, 2009 at 06:59:27AM +0100, Nick Piggin wrote:
> But there are quite possibly holes around here because not as much testing
> is done on CPUs with these kinds of caches. Eg. brd probably should be
> doing a flush_dcache_page in the rw == WRITE direction AFAIKS, so it picks
> up user aliases here.

Nick, if you wanted me to schlep a parisc machine to LCA for you, you
needed to ask me *before* I got as far as Vancouver ;-)

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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