From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Kleikamp Subject: Re: linux-next: manual merge of the block tree with the tree Date: Fri, 08 Nov 2013 09:10:39 -0600 Message-ID: <527CFEEF.6040708@oracle.com> References: <52740EB1.2070901@kernel.dk> <527411DD.7050008@oracle.com> <527414DE.9090704@kernel.dk> <52756583.2030808@oracle.com> <527BE7FA.90904@oracle.com> <20131107192545.GA20624@moria.home.lan> <527C2AA9.9040608@oracle.com> <20131108125307.613427c04a7527c4359e6443@canb.auug.org.au> <20131108020805.GI3842@kmo> <527C4D35.8000907@oracle.com> <20131108073324.GA31662@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from userp1040.oracle.com ([156.151.31.81]:32479 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757783Ab3KHPL2 (ORCPT ); Fri, 8 Nov 2013 10:11:28 -0500 In-Reply-To: <20131108073324.GA31662@infradead.org> Sender: linux-next-owner@vger.kernel.org List-ID: To: Christoph Hellwig Cc: Kent Overstreet , Stephen Rothwell , Jens Axboe , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Zach Brown , Olof Johansson , Andrew Morton On 11/08/2013 01:33 AM, Christoph Hellwig wrote: > Btw, I have to state that I very much disagree with dropping the > direct I/O kernel changes, and I also very much disagree with keeping > the immutable iovecs in. > > For the latter I think the immutable iovecs are useful and do want to > see them eventually, but they were merged at the latest possible point > in the merge window and cause breakage all over the tree, so they very > clearly are not ready at this point, and I fear even more breakage if > they do get merged. > > The changes for direct I/O from kernel space have been in for a long > time, and they are blocking multiple consumers of the interface from > getting submitted for about a year now. Even if the guts of the > direct-io code will get a write based on another patchset from Kent > that will go on top of the immutable iovec changes we need the > interfaces now and not another year down the road. Sorry Christoph, I guess I made a rash decision to pull this from linux-next. I underestimated the dependencies others had on this. Stephen, How about you pick this up again for now? Unfortunately, I'm going to be on a cruise next week and basically out of touch after today until a week from Monday. That will give Kent some more time to ponder things before I ask Linus to merge it. Thanks, Sorry for being a hassle. Shaggy