From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: linux-next: please clean up the livepatching tree Date: Fri, 05 Aug 2016 09:08:31 +0200 Message-ID: References: <20160803093109.1227bfcd@canb.auug.org.au> <20160803112328.671372ef@canb.auug.org.au> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Return-path: Received: from mx2.suse.de ([195.135.220.15]:47781 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030296AbcHEHIe (ORCPT ); Fri, 5 Aug 2016 03:08:34 -0400 In-Reply-To: Sender: linux-next-owner@vger.kernel.org List-ID: To: Jiri Kosina Cc: Stephen Rothwell , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org On Wed, 03 Aug 2016 11:29:02 +0200, Jiri Kosina wrote: > > On Wed, 3 Aug 2016, Stephen Rothwell wrote: > > > > This is a part we keep discussing from time to time, and I still don't > > > understand why it bothers you so much. The only reason is to keep the > > > branch non-rebasing, because it has downstreams. Code-wise, it's > > > always equivalent to what end up being merged, but without the actual > > > superfluous merge commits. > > > > The problem from my point of view is that git seems to take more time > > to merge the tree into linux-next (I know this isn't much for just one > > tree, but I currently have over 200 trees to merge each day). > > Because of merge commits the number of which is below 100? That's an > interesting observation and quite unexpected bottleneck in git. > > > Also, having all those extra merges complicates the structure of my tree > > and presumably makes it harder for git to merge other trees. Its also > > possible (I have seen this in other trees) for the merge commits > > themselves to generate conflicts with (merge) commits in Linus' and > > other trees. > > > > Also, I am not sure why you have a branch that ask Linus to merge > > separate from the branch you have me merge? > > Exactly to avoid Linus' tree being polluted by the extra merge commits. > > My workflow is really simple -- development happens in (a lot of) topic > branches, and each and every time any of the topic branches is updated by > a new commit, that topic branch gets merged into for-next. > > Once code should go to Linus, the branches are merged at once into > 'for-linus' brach, and it's guaranteed to be code-wise the same as what > was gradually appearing in for-next. > > What other workflow do you suggest for maintainers like me, who are using > a lot of topic branches? Maybe refreshing merges in for-next branch at each time (or day) instead of incremental merges? Takashi