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From: Jason Gunthorpe <jgg-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Linus Torvalds
	<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [GIT PULL] Please pull RDMA subsystem changes
Date: Wed, 31 Jan 2018 14:04:57 -0700
Message-ID: <20180131210457.GE23352@mellanox.com> (raw)
In-Reply-To: <CA+55aFxmnW-iu1Na3QC8Ci8Q_Qdfn2Ak_9wDB6+A564R=Xn9Ag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Wed, Jan 31, 2018 at 12:11:24PM -0800, Linus Torvalds wrote:
> On Wed, Jan 31, 2018 at 9:47 AM, Jason Gunthorpe <jgg-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> wrote:
> >
> > Since the conflict with v4.15 involves some code motion and is not so
> > trivial, so I have included a merge to tag v4.15 as the top commit in
> > this PR that has the resolution reviewed by the patch authors and
> > tested in linux-next. The tag 'for-linus-unmerged' is available
> > without this merge if you desire.
> 
> Thanks, this was well done. A thoughtful merge with explanation for
> why the conflict happened and why back-merge was done, and taking a
> sane merge point (v4.15 rather than some random daily point).

Thanks Linus, it is good to know I've understood your past remarks
properly!

On the topic of back merges, can you give some guidance?

With some success, we've encouraged all the driver vendors to test -rc
kernels and test our RDMA for-next internally during the entire -rc
cycle. Most of the testers are taking RDMA for-next and merging it
with latest -rcX then testing the result.

Due to the conflict above our tree was left with complicated merge
conflicts for about 3-4 weeks, and some of the testers have had pain
due to this.

Would back merging -rcX ealier, with a similar but better merge
commit, be an acceptable practice?

I'm unsure since we'd be doing this to support testers/users and not
as a development requirement.

In this case we'd send you a PR with the back merge for conflict
resolution well down the commit list.

Thanks,
Jason
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  parent reply index

Thread overview: 103+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-31 17:47 Jason Gunthorpe
     [not found] ` <20180131174735.GA18568-uk2M96/98Pc@public.gmane.org>
2018-01-31 20:11   ` Linus Torvalds
     [not found]     ` <CA+55aFxmnW-iu1Na3QC8Ci8Q_Qdfn2Ak_9wDB6+A564R=Xn9Ag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-31 21:04       ` Jason Gunthorpe [this message]
     [not found]         ` <20180131210457.GE23352-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2018-02-01 19:12           ` Linus Torvalds
     [not found]             ` <CA+55aFxySLoCHcmZgx2PiF6jEazVOSy=2idccRsWqOzmyK2gaw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-01 20:33               ` Jason Gunthorpe
  -- strict thread matches above, loose matches on Subject: below --
2020-05-29 14:15 Jason Gunthorpe
2020-05-29 21:10 ` pr-tracker-bot
2020-05-15 19:13 Jason Gunthorpe
2020-05-15 20:15 ` pr-tracker-bot
2020-04-28 19:59 Jason Gunthorpe
2020-04-28 20:40 ` pr-tracker-bot
2020-04-01 23:01 Jason Gunthorpe
2020-04-02  2:05 ` pr-tracker-bot
2020-03-26 17:31 Jason Gunthorpe
2020-03-26 17:50 ` pr-tracker-bot
2020-03-08  0:07 Jason Gunthorpe
2020-03-08  2:00 ` pr-tracker-bot
2020-02-15 21:32 Jason Gunthorpe
2020-02-16  1:20 ` pr-tracker-bot
2020-01-31 15:16 Jason Gunthorpe
2020-01-31 23:10 ` pr-tracker-bot
2020-01-10  2:16 Jason Gunthorpe
2020-01-11 14:45 ` pr-tracker-bot
2019-11-27  0:24 Jason Gunthorpe
2019-11-27 18:19 ` Linus Torvalds
2019-11-27 19:23   ` Jason Gunthorpe
2019-11-27 18:45 ` pr-tracker-bot
2019-11-14 15:16 Jason Gunthorpe
2019-11-14 16:55 ` pr-tracker-bot
2019-10-31 18:22 Jason Gunthorpe
2019-11-01 17:10 ` pr-tracker-bot
2019-10-09 14:28 Jason Gunthorpe
2019-10-09 19:30 ` pr-tracker-bot
2019-09-19 16:34 Jason Gunthorpe
2019-09-21 17:40 ` pr-tracker-bot
2019-07-30 12:15 Jason Gunthorpe
2019-07-30 20:40 ` pr-tracker-bot
2019-07-15 15:26 Jason Gunthorpe
2019-07-16  4:35 ` pr-tracker-bot
2019-06-06 20:14 Jason Gunthorpe
2019-06-07 16:45 ` pr-tracker-bot
2019-05-15  0:46 Jason Gunthorpe
2019-05-15  4:05 ` pr-tracker-bot
2019-05-09 13:37 Jason Gunthorpe
2019-05-09 16:25 ` pr-tracker-bot
2019-04-28 11:52 Jason Gunthorpe
2019-04-28 16:59 ` Linus Torvalds
2019-04-28 23:49   ` Jason Gunthorpe
2019-04-29  0:09     ` Linus Torvalds
2019-04-30 12:53       ` Jason Gunthorpe
2019-04-28 18:05 ` pr-tracker-bot
2019-04-29  6:09 ` Heiko Carstens
2019-04-29  8:40   ` Jason Gunthorpe
2019-04-29  9:00     ` Michal Kubecek
2019-04-29  9:19       ` Leon Romanovsky
2019-04-29 15:42     ` Doug Ledford
2019-04-29 16:29       ` Doug Ledford
2019-04-10 18:46 Jason Gunthorpe
2019-04-10 19:55 ` pr-tracker-bot
2019-03-18  1:04 Jason Gunthorpe
2019-03-19 18:15 ` pr-tracker-bot
2019-03-07  1:34 Jason Gunthorpe
2019-03-10  1:40 ` pr-tracker-bot
2019-02-21 23:07 Jason Gunthorpe
2019-02-22 18:40 ` pr-tracker-bot
2019-02-01 17:41 Jason Gunthorpe
2019-02-01 18:45 ` pr-tracker-bot
2019-01-18  3:56 Jason Gunthorpe
2019-01-18  5:35 ` pr-tracker-bot
2019-01-04  5:00 Jason Gunthorpe
2019-01-06  2:40 ` pr-tracker-bot
2018-12-24 22:16 Jason Gunthorpe
2018-12-29  1:30 ` pr-tracker-bot
2018-11-29 22:52 Jason Gunthorpe
2018-10-25 21:21 Jason Gunthorpe
2018-10-26 14:50 ` Linus Torvalds
2018-09-27 18:24 Jason Gunthorpe
2018-09-27 20:17 ` Greg Kroah-Hartman
2018-09-10 23:04 Jason Gunthorpe
2018-08-22 21:44 Jason Gunthorpe
2018-08-16 21:57 Jason Gunthorpe
2018-08-17 19:31 ` Linus Torvalds
2018-08-17 19:44   ` Linus Torvalds
2018-08-17 20:50     ` Linus Torvalds
2018-08-17 21:16       ` Jason Gunthorpe
2018-08-17 23:56         ` Linus Torvalds
2018-08-17 20:15   ` Jason Gunthorpe
2018-08-17 20:27     ` Linus Torvalds
2018-08-17 21:27       ` Jason Gunthorpe
2018-08-03 16:11 Jason Gunthorpe
2018-07-13 17:13 Jason Gunthorpe
2018-06-20 21:00 Jason Gunthorpe
2018-06-06 21:42 Jason Gunthorpe
2018-06-01 16:47 Jason Gunthorpe
2018-05-24 20:51 Jason Gunthorpe
2018-04-06 16:05 Jason Gunthorpe
2018-05-16 17:39 ` Eugene Syromiatnikov
2018-05-16 17:49   ` Jason Gunthorpe
2018-05-16 18:01     ` Eugene Syromiatnikov
2018-03-29 19:17 Jason Gunthorpe
2018-03-20 23:17 Jason Gunthorpe
2017-12-28 21:03 Jason Gunthorpe
2017-12-16 17:12 Jason Gunthorpe

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