From mboxrd@z Thu Jan 1 00:00:00 1970 From: Evgeniy Polyakov Subject: Re: [0/4] DST: Distributed storage. Date: Tue, 4 Dec 2007 20:21:47 +0300 Message-ID: <20071204172146.GA21838@2ka.mipt.ru> References: <11967790263179@2ka.mipt.ru> <170fa0d20712040725o506a47cayb137993041ec3a63@mail.gmail.com> <20071204165625.GA14995@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Mike Snitzer , lkml , netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org To: Christoph Hellwig Return-path: Content-Disposition: inline In-Reply-To: <20071204165625.GA14995@infradead.org> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Tue, Dec 04, 2007 at 04:56:26PM +0000, Christoph Hellwig (hch@infradead.org) wrote: > > > * fixed bug with XFS metadata update (it can provide slab pages to the > > > DST, so it is not allowed to transfer them using ->sendpage()) > > xfs hasn't been doing that anymore for quite a while. Block drivers > don't need hacks for it anymore, epsecially as it's not reliably > detectable. I use 2.6.22 and it is there, maybe it was changed later. Right now it can be detected quite trivially, but can result in a little more bio startup overhead, I just did not know that it was allowed and thus did not have a check in the DST. -- Evgeniy Polyakov