From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Wilcox Subject: Re: [patch] fs: improved handling of page and buffer IO errors Date: Tue, 21 Oct 2008 10:29:58 -0600 Message-ID: <20081021162957.GQ26184@parisc-linux.org> References: <20081021112137.GB12329@wotan.suse.de> <20081021125915.GA26697@fogou.chygwyn.com> <20081021133814.GA26942@fogou.chygwyn.com> <20081021143518.GA7158@2ka.mipt.ru> <20081021145901.GA28279@fogou.chygwyn.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: steve@chygwyn.com, zbr@ioremap.net, npiggin@suse.de, akpm@linux-foundation.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org To: Miklos Szeredi Return-path: Received: from palinux.external.hp.com ([192.25.206.14]:51836 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752169AbYJUQ37 (ORCPT ); Tue, 21 Oct 2008 12:29:59 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Tue, Oct 21, 2008 at 06:28:01PM +0200, Miklos Szeredi wrote: > On Tue, 21 Oct 2008, Miklos Szeredi wrote: > > BTW, why do you want strict coherency for memory mappings? It's not > > something POSIX mandates. It's not even something that Linux always > > did. > > Or does, for that matter, on those architectures which have virtually > addressed caches. Careful with those slurs you're throwing around. PA-RISC carefully aligns its mmaps so they are coherent. -- 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."