Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751477AbbLaFSi (ORCPT ); Thu, 31 Dec 2015 00:18:38 -0500 Received: from mail-pf0-f178.google.com ([209.85.192.178]:36404 "EHLO mail-pf0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750928AbbLaFSf (ORCPT ); Thu, 31 Dec 2015 00:18:35 -0500 Date: Wed, 30 Dec 2015 20:18:31 -0900 From: Kent Overstreet To: Jens Axboe Cc: Eric Wheeler , Al Viro , Denis Bychkov , g2p.code@gmail.com, Jiri Kosina , Joshua Schmid , linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, stefan.bader@canonical.com, Takashi Iwai , Vojtech Pavlik , Zheng Liu , Zheng Liu Subject: Re: [PULL] Re: bcache stability patches Message-ID: <20151231051830.GB8265@kmo-pixel> References: <56841B8B.6070306@kernel.dk> <20151231031500.GA8265@kmo-pixel> <5684A030.1040306@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5684A030.1040306@kernel.dk> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2112 Lines: 45 On Wed, Dec 30, 2015 at 08:25:36PM -0700, Jens Axboe wrote: > On 12/30/2015 08:15 PM, Kent Overstreet wrote: > >On Wed, Dec 30, 2015 at 10:59:39AM -0700, Jens Axboe wrote: > >>Looking over these, most are really simple one-liners, and nothing sticks > >>out as being overly complicated. Kent, do you have any plans to maintain the > >>in-kernel bcache? > > > >Yeah - these patches are all fine, go ahead and pull. > > Great, thanks. > > >I may start doing maintainence again at some point (but if there's someone > >willing to step up and take over and do a good job of it, I'd gladly hand things > >off) > > As long as we have a path into mainline for stability fixes, at least that's > better than before. I'd really like to get the improvements from the bcache-dev branch upstream - there's a lot of _huge_ improvements (performance and otherwise), but backporting the non on disk format changes has turned out to be... not really practical. So one of the major obstacles has been that there's a ton of very worthwhile code I'd really like to get upstream, but at this point it's pretty much going to have to be as drivers/md/bcache2 - effectively a fork that wouldn't support the original on disk format. And that's a high hurdle. If the user community is willing to step up and help out (and realistically, that'd have to include financial support) - that's probably what I'd like to see happen. But it's a non trivial amount of work to get sufficient testing and to get the new on disk format stabilized enough to go upstream. > Thanks Eric for collecting these. I've reformatted some of them a bit, not > sure if that's github crappery, or if they came like that. It's pushed out > now. Thanks Eric - and let me know if you'd be willing to take on more maintainence work, I may have had some more patches in my backlog and we could talk about testing. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/