linux-kernel - Re: [PATCH v3 2/2] mm: memcg: introduce new event to trace shrink

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Message-ID: <20231129174954.bmujk37cufq37oyp@CAB-WSD-L081021>
Date:   Wed, 29 Nov 2023 20:49:54 +0300
From:   Dmitry Rokosov <ddrokosov@...utedevices.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     Michal Hocko <mhocko@...e.com>, <rostedt@...dmis.org>,
        <mhiramat@...nel.org>, <hannes@...xchg.org>,
        <roman.gushchin@...ux.dev>, <shakeelb@...gle.com>,
        <muchun.song@...ux.dev>, <kernel@...rdevices.ru>,
        <rockosov@...il.com>, <cgroups@...r.kernel.org>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <bpf@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] mm: memcg: introduce new event to trace
 shrink_memcg

On Wed, Nov 29, 2023 at 09:33:41AM -0800, Andrew Morton wrote:
> On Wed, 29 Nov 2023 18:20:57 +0300 Dmitry Rokosov <ddrokosov@...utedevices.com> wrote:
> 
> > Okay, I will try to prepare a new patch version with memcg printing from
> > lruvec and slab tracepoints.
> > 
> > Then Andrew should drop the previous patchsets, I suppose. Please advise
> > on the correct workflow steps here.
> 
> This series is present in mm.git's mm-unstable branch.  Note
> "unstable".  So dropping the v3 series and merging v4 is totally not a
> problem.  It's why this branch exists - it's daily rebasing, in high
> flux.
> 
> When a patchset is considered stabilized and ready, I'll move it into
> the mm-stable branch, which is (supposed to be) the non-rebasing tree
> for next merge window.
> 
> If you have small fixes then I prefer little fixup patches against what
> is presently in mm-unstable.
> 
> If you send replacement patches then no problem, I'll check to see
> whether I should turn them into little fixup deltas.
> 
> I prefer little fixups so that people can see what has changed, so I
> can see which review/test issues were addressed and so that people
> don't feel a need to re-review the whole patchset.
> 
> If generation of little fixups is impractical, I'll drop the old series
> entirely and I'll merge the new one.
> 
> Each case is a judgement call, please send whatever you think makes
> most sense given the above.

Thank you for the detailed explanation! It is now completely clear to
me! I will be sending the new patch series soon.

-- 
Thank you,
Dmitry