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From: Tejun Heo <tj@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	mingo@redhat.com, juri.lelli@redhat.com,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
	bristot@redhat.com, vschneid@redhat.com, ast@kernel.org,
	daniel@iogearbox.net, andrii@kernel.org, martin.lau@kernel.org,
	joshdon@google.com, brho@google.com, pjt@google.com,
	derkling@google.com, haoluo@google.com, dvernet@meta.com,
	dschatzberg@meta.com, dskarlat@cs.cmu.edu, riel@surriel.com,
	changwoo@igalia.com, himadrics@inria.fr, memxor@gmail.com,
	andrea.righi@canonical.com, joel@joelfernandes.org,
	linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
	kernel-team@meta.com
Subject: Re: [PATCH sched_ext/for-6.11] sched, sched_ext: Replace scx_next_task_picked() with sched_class->switch_class()
Date: Mon, 24 Jun 2024 08:41:32 -1000	[thread overview]
Message-ID: <Znm93GMnCiAkcCIq@slm.duckdns.org> (raw)
In-Reply-To: <20240624090431.GG31592@noisy.programming.kicks-ass.net>

Hello, Peter.

On Mon, Jun 24, 2024 at 11:04:31AM +0200, Peter Zijlstra wrote:
> > I'll update the patch description to point to the previous message just in
> > case and apply it to sched_ext/for-6.11.
> 
> Can you please back merge and keep it a sane series? I'm going to have
> to review it (even though I still very strongly disagree with the whole
> thing) and there really is nothing worse than a series that introduces
> things only to remove/change them again later.

I started the sched_ext/for-6.11 branch last week with the v7 patchset:

  http://lkml.kernel.org/r/20240618212056.2833381-1-tj@kernel.org

and would much prefer to just run it as a normal branch. No matter what form
the patchset gets applied in, we'll have constant flow of changes, fixes,
reverts and improvements no matter what, so I'd much prefer to avoid another
round of reshuffling and reposting.

Thanks.

-- 
tejun

  reply	other threads:[~2024-06-24 18:41 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-01 15:09 [PATCHSET v6] sched: Implement BPF extensible scheduler class Tejun Heo
2024-05-01 15:09 ` [PATCH 01/39] cgroup: Implement cgroup_show_cftypes() Tejun Heo
2024-05-01 15:09 ` [PATCH 02/39] sched: Restructure sched_class order sanity checks in sched_init() Tejun Heo
2024-05-01 15:09 ` [PATCH 03/39] sched: Allow sched_cgroup_fork() to fail and introduce sched_cancel_fork() Tejun Heo
2024-05-01 15:09 ` [PATCH 04/39] sched: Add sched_class->reweight_task() Tejun Heo
2024-06-24 10:23   ` Peter Zijlstra
2024-06-24 10:31     ` Peter Zijlstra
2024-06-24 23:59     ` Tejun Heo
2024-06-25  7:29       ` Peter Zijlstra
2024-06-25 23:57         ` Tejun Heo
2024-06-26  1:29           ` [PATCH sched/urgent] sched/fair: set_load_weight() must also call reweight_task() for SCHED_IDLE tasks Tejun Heo
2024-06-26  2:19           ` [PATCH sched_ext/for-6.11] sched_ext: Account for idle policy when setting p->scx.weight in scx_ops_enable_task() Tejun Heo
2024-07-08 19:29             ` [PATCH v2 " Tejun Heo
2024-05-01 15:09 ` [PATCH 05/39] sched: Add sched_class->switching_to() and expose check_class_changing/changed() Tejun Heo
2024-06-24 11:06   ` Peter Zijlstra
2024-06-24 22:18     ` Tejun Heo
2024-06-25  8:16       ` Peter Zijlstra
2024-05-01 15:09 ` [PATCH 06/39] sched: Factor out cgroup weight conversion functions Tejun Heo
2024-05-01 15:09 ` [PATCH 07/39] sched: Expose css_tg() and __setscheduler_prio() Tejun Heo
2024-06-24 11:19   ` Peter Zijlstra
2024-06-24 18:56     ` Tejun Heo
2024-05-01 15:09 ` [PATCH 08/39] sched: Enumerate CPU cgroup file types Tejun Heo
2024-05-01 15:09 ` [PATCH 09/39] sched: Add @reason to sched_class->rq_{on|off}line() Tejun Heo
2024-06-24 11:32   ` Peter Zijlstra
2024-06-24 21:18     ` Tejun Heo
2024-06-25  8:29       ` Peter Zijlstra
2024-06-25 23:41         ` Tejun Heo
2024-06-26  8:23           ` Peter Zijlstra
2024-06-26 18:01             ` Tejun Heo
2024-06-27  1:27               ` [PATCH sched_ext/for-6.11] sched_ext: Disallow loading BPF scheduler if isolcpus= domain isolation is in effect Tejun Heo
2024-07-08 19:30                 ` Tejun Heo
2024-05-01 15:09 ` [PATCH 10/39] sched: Factor out update_other_load_avgs() from __update_blocked_others() Tejun Heo
2024-06-24 12:35   ` Peter Zijlstra
2024-06-24 16:15     ` Vincent Guittot
2024-06-24 19:24       ` Tejun Heo
2024-06-25  9:13         ` Vincent Guittot
2024-06-26 20:49           ` Tejun Heo
2024-05-01 15:09 ` [PATCH 11/39] cpufreq_schedutil: Refactor sugov_cpu_is_busy() Tejun Heo
2024-05-01 15:09 ` [PATCH 12/39] sched: Add normal_policy() Tejun Heo
2024-05-01 15:09 ` [PATCH 13/39] sched_ext: Add boilerplate for extensible scheduler class Tejun Heo
2024-05-01 15:09 ` [PATCH 14/39] sched_ext: Implement BPF " Tejun Heo
2024-05-01 15:09 ` [PATCH 15/39] sched_ext: Add scx_simple and scx_example_qmap example schedulers Tejun Heo
2024-05-01 15:09 ` [PATCH 16/39] sched_ext: Add sysrq-S which disables the BPF scheduler Tejun Heo
2024-05-01 15:09 ` [PATCH 17/39] sched_ext: Implement runnable task stall watchdog Tejun Heo
2024-05-01 15:09 ` [PATCH 18/39] sched_ext: Allow BPF schedulers to disallow specific tasks from joining SCHED_EXT Tejun Heo
2024-06-24 12:40   ` Peter Zijlstra
2024-06-24 19:06     ` Tejun Heo
2024-05-01 15:09 ` [PATCH 19/39] sched_ext: Print sched_ext info when dumping stack Tejun Heo
2024-06-24 12:46   ` Peter Zijlstra
2024-06-24 14:25     ` Linus Torvalds
2024-06-24 18:34     ` Tejun Heo
2024-05-01 15:09 ` [PATCH 20/39] sched_ext: Print debug dump after an error exit Tejun Heo
2024-05-01 15:09 ` [PATCH 21/39] tools/sched_ext: Add scx_show_state.py Tejun Heo
2024-05-01 15:09 ` [PATCH 22/39] sched_ext: Implement scx_bpf_kick_cpu() and task preemption support Tejun Heo
2024-05-01 15:09 ` [PATCH 23/39] sched_ext: Add a central scheduler which makes all scheduling decisions on one CPU Tejun Heo
2024-05-01 15:09 ` [PATCH 24/39] sched_ext: Make watchdog handle ops.dispatch() looping stall Tejun Heo
2024-05-01 15:10 ` [PATCH 25/39] sched_ext: Add task state tracking operations Tejun Heo
2024-05-01 15:10 ` [PATCH 26/39] sched_ext: Implement tickless support Tejun Heo
2024-05-01 15:10 ` [PATCH 27/39] sched_ext: Track tasks that are subjects of the in-flight SCX operation Tejun Heo
2024-05-01 15:10 ` [PATCH 28/39] sched_ext: Add cgroup support Tejun Heo
2024-05-01 15:10 ` [PATCH 29/39] sched_ext: Add a cgroup scheduler which uses flattened hierarchy Tejun Heo
2024-05-01 15:10 ` [PATCH 30/39] sched_ext: Implement SCX_KICK_WAIT Tejun Heo
2024-05-01 15:10 ` [PATCH 31/39] sched_ext: Implement sched_ext_ops.cpu_acquire/release() Tejun Heo
2024-05-01 15:10 ` [PATCH 32/39] sched_ext: Implement sched_ext_ops.cpu_online/offline() Tejun Heo
2024-05-01 15:10 ` [PATCH 33/39] sched_ext: Bypass BPF scheduler while PM events are in progress Tejun Heo
2024-05-01 15:10 ` [PATCH 34/39] sched_ext: Implement core-sched support Tejun Heo
2024-05-01 15:10 ` [PATCH 35/39] sched_ext: Add vtime-ordered priority queue to dispatch_q's Tejun Heo
2024-05-01 15:10 ` [PATCH 36/39] sched_ext: Implement DSQ iterator Tejun Heo
2024-05-01 15:10 ` [PATCH 37/39] sched_ext: Add cpuperf support Tejun Heo
2024-05-01 15:10 ` [PATCH 38/39] sched_ext: Documentation: scheduler: Document extensible scheduler class Tejun Heo
2024-05-02  2:24   ` Bagas Sanjaya
2024-05-01 15:10 ` [PATCH 39/39] sched_ext: Add selftests Tejun Heo
2024-05-02  8:48 ` [PATCHSET v6] sched: Implement BPF extensible scheduler class Peter Zijlstra
2024-05-02 19:20   ` Tejun Heo
2024-05-03  8:52     ` Peter Zijlstra
2024-05-05 23:31       ` Tejun Heo
2024-05-13  8:03         ` Peter Zijlstra
2024-05-13 18:26           ` Steven Rostedt
2024-05-14  0:07             ` Qais Yousef
2024-05-14 21:34               ` David Vernet
2024-05-27 21:25                 ` Qais Yousef
2024-05-28 23:46                   ` Tejun Heo
2024-05-29 22:09                     ` Qais Yousef
2024-05-17  9:58               ` Peter Zijlstra
2024-05-27 20:29                 ` Qais Yousef
2024-05-14 20:22           ` Chris Mason
2024-05-14 22:06           ` Josh Don
2024-05-15 20:41           ` Tejun Heo
2024-05-21  0:19             ` Tejun Heo
2024-05-30 16:49               ` Tejun Heo
2024-05-06 18:47       ` Rik van Riel
2024-05-07 19:33         ` Tejun Heo
2024-05-07 19:47           ` Rik van Riel
2024-05-09  7:38       ` Changwoo Min
2024-05-10 18:24 ` Peter Jung
2024-05-13 20:36 ` Andrea Righi
2024-06-11 21:34 ` Linus Torvalds
2024-06-13 23:38   ` Tejun Heo
2024-06-19 20:56   ` Thomas Gleixner
2024-06-19 22:10     ` Linus Torvalds
2024-06-19 22:27       ` Thomas Gleixner
2024-06-19 22:55         ` Linus Torvalds
2024-06-20  2:35           ` Thomas Gleixner
2024-06-20  5:07             ` Linus Torvalds
2024-06-20 17:11               ` Linus Torvalds
2024-06-20 17:41                 ` Tejun Heo
2024-06-20 22:15                   ` [PATCH sched_ext/for-6.11] sched, sched_ext: Replace scx_next_task_picked() with sched_class->switch_class() Tejun Heo
2024-06-20 22:42                     ` Linus Torvalds
2024-06-21 19:46                       ` Tejun Heo
2024-06-24  9:04                         ` Peter Zijlstra
2024-06-24 18:41                           ` Tejun Heo [this message]
2024-06-24  9:02                       ` Peter Zijlstra
2024-06-21 19:52                     ` Tejun Heo
2024-06-24  8:59                     ` Peter Zijlstra
2024-06-24 21:01                       ` Tejun Heo
2024-06-25  7:49                         ` Peter Zijlstra
2024-06-25 23:30                           ` Tejun Heo
2024-06-26  8:28                             ` Peter Zijlstra
2024-06-26 17:56                               ` Tejun Heo
2024-06-20 18:47               ` [PATCHSET v6] sched: Implement BPF extensible scheduler class Thomas Gleixner
2024-06-20 19:20                 ` Linus Torvalds
2024-06-21  9:35                   ` Thomas Gleixner
2024-06-21 16:34                     ` Linus Torvalds
2024-06-23  2:00                       ` Tejun Heo
2024-06-23 10:31                       ` Thomas Gleixner
2024-06-23 10:33                       ` Thomas Gleixner
2024-06-24 14:23                         ` Jason Gunthorpe
2024-06-20 19:58                 ` Tejun Heo
2024-06-24  9:34                   ` Peter Zijlstra
2024-06-24 20:17                     ` Tejun Heo
2024-06-24 20:51                       ` [PATCH sched_ext/for-6.11] sched, sched_ext: Simplify dl_prio() case handling in sched_fork() Tejun Heo
2024-07-08 18:56                         ` Tejun Heo
2024-06-20 19:35             ` [PATCHSET v6] sched: Implement BPF extensible scheduler class Tejun Heo
2024-06-21 10:46               ` Thomas Gleixner
2024-06-21 21:14                 ` Chris Mason
2024-06-23  8:14                   ` Thomas Gleixner
2024-06-24 16:42                     ` Chris Mason
2024-06-24 18:11                       ` Tejun Heo
2024-06-24 22:01                         ` Peter Oskolkov
2024-06-24 22:17                     ` David Vernet
2024-06-24 21:54             ` Peter Oskolkov

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