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From: Andrew Morton <akpm@linux-foundation.org>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: David Hildenbrand <david@redhat.com>,
	Kalesh Singh <kaleshsingh@google.com>,
	minchan@kernel.org, Liam.Howlett@oracle.com, rppt@kernel.org,
	pfalcato@suse.de, kernel-team@android.com, android-mm@google.com,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
	Kees Cook <kees@kernel.org>, Vlastimil Babka <vbabka@suse.cz>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
	Jann Horn <jannh@google.com>, Shuah Khan <shuah@kernel.org>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v2 0/7] vma count: fixes, test and improvements
Date: Thu, 18 Sep 2025 13:59:46 -0700	[thread overview]
Message-ID: <20250918135946.4f4432e0c69a465c89af14aa@linux-foundation.org> (raw)
In-Reply-To: <7e3de8d3-c064-4ef4-85f8-48294a238336@lucifer.local>

On Thu, 18 Sep 2025 13:49:33 +0100 Lorenzo Stoakes <lorenzo.stoakes@oracle.com> wrote:

> > > I'm confused, why is the merge window a good time to consider new material?
> > >
> > > People have the entirety of the cycle to submit new material, and they do
> > > so.
> >
> > My view is that if you are sending a cleanup/feature during the merge window
> > you cannot expect a fast reply, and you should not keep sending new versions
> > in that timeframe expecting that all people you CCed that should have a look
> > actually did have a look.
> 
> Yes exactly.
> 
> The problem is all the conversations and respins and etc. _do_ carry on as
> normal, and often land in mm-new, queued up for mm-unstable etc. unless we
> happen to notice them.
> 
> So it makes it impossible for us to just ignore until the next cycle (or need to
> go through every thread that happened afterwards).
> 
> And people know that, so just keep on submitting as normal. That was _really_
> palpable last merge window.
> 

Well, what else do we have to do during the merge window?  The previous
cycle's batch is merged up and there may be some fallout from that, but
it isn't very time-consuming.

If you're proposing that we start to use that period as a break for
sanity purposes then OK, didn't see that one coming, don't know how
widespread this desire is.

But perhaps a better time for this quiet period is during -rc6 and -rc7
when the rate of merging is throttled right back.  Or perhaps from -rc7
to mid-merge-window.


      reply	other threads:[~2025-09-18 20:59 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-15 16:36 [PATCH v2 0/7] vma count: fixes, test and improvements Kalesh Singh
2025-09-15 16:36 ` [PATCH v2 1/7] mm: fix off-by-one error in VMA count limit checks Kalesh Singh
2025-09-15 22:36   ` Andrew Morton
2025-09-16 14:20     ` Jonathan Corbet
2025-09-17  1:16       ` Andrew Morton
2025-09-16  9:45   ` Pedro Falcato
2025-09-17  7:44   ` SeongJae Park
2025-09-17 10:52   ` David Hildenbrand
2025-09-18 11:31   ` Pedro Falcato
2025-09-18 13:53   ` Lorenzo Stoakes
2025-09-15 16:36 ` [PATCH v2 2/7] mm/selftests: add max_vma_count tests Kalesh Singh
2025-09-17 10:58   ` David Hildenbrand
2025-09-17 16:49     ` Kalesh Singh
2025-09-18 14:42   ` Lorenzo Stoakes
2025-09-18 16:21     ` Kalesh Singh
2025-09-15 16:36 ` [PATCH v2 3/7] mm: introduce vma_count_remaining() Kalesh Singh
2025-09-17 13:38   ` David Hildenbrand
2025-09-17 17:10     ` Kalesh Singh
2025-09-18 13:20   ` Lorenzo Stoakes
2025-09-18 13:26     ` Lorenzo Stoakes
2025-09-18 14:31   ` Lorenzo Stoakes
2025-09-18 15:52     ` Kalesh Singh
2025-09-15 16:36 ` [PATCH v2 4/7] mm: rename mm_struct::map_count to vma_count Kalesh Singh
2025-09-17 13:41   ` David Hildenbrand
2025-09-18 11:46   ` Pedro Falcato
2025-09-18 14:48   ` Lorenzo Stoakes
2025-09-15 16:36 ` [PATCH v2 5/7] mm: harden vma_count against direct modification Kalesh Singh
2025-09-18 14:52   ` Lorenzo Stoakes
2025-09-18 15:43     ` Kalesh Singh
2025-09-15 16:36 ` [PATCH v2 6/7] mm: add assertion for VMA count limit Kalesh Singh
2025-09-17 13:44   ` David Hildenbrand
2025-09-17 17:22     ` Kalesh Singh
2025-09-17 18:34       ` David Hildenbrand
2025-09-17 20:31         ` Kalesh Singh
2025-09-18 11:48     ` Pedro Falcato
2025-09-18 13:30   ` Lorenzo Stoakes
2025-09-15 16:36 ` [PATCH v2 7/7] mm/tracing: introduce max_vma_count_exceeded trace event Kalesh Singh
2025-09-15 23:41   ` Steven Rostedt
2025-09-16  1:19     ` Kalesh Singh
2025-09-16 15:52       ` Steven Rostedt
2025-09-16 17:36         ` Kalesh Singh
2025-09-16 17:48           ` Steven Rostedt
2025-09-16 17:57             ` Kalesh Singh
2025-09-16 18:02               ` Steven Rostedt
2025-09-16 18:23                 ` Kalesh Singh
2025-09-16 18:51                   ` Steven Rostedt
2025-09-16 20:08                     ` Kalesh Singh
2025-09-18 11:38         ` Pedro Falcato
2025-09-18 14:48           ` Steven Rostedt
2025-09-18 13:42   ` Lorenzo Stoakes
2025-09-18 13:51     ` Lorenzo Stoakes
2025-09-18 15:55       ` Kalesh Singh
2025-09-15 22:34 ` [PATCH v2 0/7] vma count: fixes, test and improvements Andrew Morton
2025-09-15 23:10   ` Kalesh Singh
2025-09-16  0:05     ` Andrew Morton
2025-09-16  1:23       ` Kalesh Singh
2025-09-16 10:12   ` Lorenzo Stoakes
2025-09-16 17:47     ` Kalesh Singh
2025-09-17  2:16     ` Andrew Morton
2025-09-17  5:36       ` Lorenzo Stoakes
2025-09-17 23:32         ` Andrew Morton
2025-09-18 10:29           ` Lorenzo Stoakes
2025-09-18 12:07             ` David Hildenbrand
2025-09-18 12:49               ` Lorenzo Stoakes
2025-09-18 20:59                 ` Andrew Morton [this message]

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