linux-kernel - Re: [PATCHSET v2 sched_ext/for-6.12] sched

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Message-ID: <ZtGnzJsP8Smzx7JX@slm.duckdns.org>
Date: Fri, 30 Aug 2024 01:06:52 -1000
From: Tejun Heo <tj@...nel.org>
To: void@...ifault.com, peterz@...radead.org, mingo@...hat.com
Cc: cgroups@...r.kernel.org, lizefan.x@...edance.com, hannes@...xchg.org,
	mkoutny@...e.com, kernel-team@...a.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCHSET v2 sched_ext/for-6.12] sched_ext: Add cgroup support

On Mon, Aug 26, 2024 at 12:57:38PM -1000, Tejun Heo wrote:
> This is v2 of sched_ext cgroup support patchset. Changes from v1
> (http://lkml.kernel.org/r/20240808002550.731248-1-tj@kernel.org) are:
> 
> - cgroup interface file visiblity toggling based on SCX_OPS flags is dropped
>   as it caused more confusion than helping anything. sched_ext now just
>   warns when unimplemented features are used.
> 
> This was originally taken from the cgroup integration part of the sched_ext
> v6 patchset:
> 
>   http://lkml.kernel.org/r/20240501151312.635565-1-tj@kernel.org
> 
> This patchset is on top of sched_ext/for-6.12 (9ad2861b773d ("sched_ext:
> Allow dequeue_task_scx to fail")) and contains the following patches:
> 
>  0001-sched-Expose-css_tg.patch
>  0002-sched-Make-cpu_shares_read_u64-use-tg_weight.patch
>  0003-sched-Introduce-CONFIG_GROUP_SCHED_WEIGHT.patch
>  0004-sched_ext-Add-cgroup-support.patch
>  0005-sched_ext-Add-a-cgroup-scheduler-which-uses-flattene.patch
> 
>  0001-0003 are sched core preparations. Straightforward. No functional
>  changes.
> 
>  0004 adds cgroup support to sched_ext.
> 
>  0005 implements an example scheduler which uses the cgroup support.

The sched core part is minimal with this series. Peter, unless you object,
I'll route these through sched_ext/for-6.12.

Thanks.

-- 
tejun