From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Wilcox Subject: Re: [PATCH] Remove needless flush_dcache_page call Date: Thu, 15 Jan 2009 23:01:24 -0700 Message-ID: <20090116060124.GG31013@parisc-linux.org> References: <20090116052804.GA18737@barrios-desktop> <20090116053338.GC31013@parisc-linux.org> <20090116055119.GA6515@barrios-desktop> <20090116055927.GA22810@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: MinChan Kim , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, linux-parisc@vger.kernel.org To: Nick Piggin Return-path: Content-Disposition: inline In-Reply-To: <20090116055927.GA22810@wotan.suse.de> Sender: linux-parisc-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org 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."