linux-kernel - Re: [PATCH sched_ext/for-6.15 v3 2/5] sched_ext: Declare context-sensitive kfunc groups that can be used by different SCX operations

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Message-ID: <Z8IxQy9bvanaiFq6@slm.duckdns.org>
Date: Fri, 28 Feb 2025 11:57:23 -1000
From: Tejun Heo <tj@...nel.org>
To: Juntong Deng <juntong.deng@...look.com>
Cc: ast@...nel.org, daniel@...earbox.net, john.fastabend@...il.com,
	andrii@...nel.org, martin.lau@...ux.dev, eddyz87@...il.com,
	song@...nel.org, yonghong.song@...ux.dev, kpsingh@...nel.org,
	sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org,
	memxor@...il.com, void@...ifault.com, arighi@...dia.com,
	changwoo@...lia.com, bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH sched_ext/for-6.15 v3 2/5] sched_ext: Declare
 context-sensitive kfunc groups that can be used by different SCX operations

On Wed, Feb 26, 2025 at 07:28:17PM +0000, Juntong Deng wrote:
> This patch declare context-sensitive kfunc groups that can be used by
> different SCX operations.
> 
> In SCX, some kfuncs are context-sensitive and can only be used in
> specific SCX operations.
> 
> Currently context-sensitive kfuncs can be grouped into UNLOCKED,
> CPU_RELEASE, DISPATCH, ENQUEUE, SELECT_CPU.
> 
> In this patch enum scx_ops_kf_flags was added to represent these groups,
> which is based on scx_kf_mask.
> 
> SCX_OPS_KF_ANY is a special value that indicates kfuncs can be used in
> any context.
> 
> scx_ops_context_flags is used to declare the groups of kfuncs that can
> be used by each SCX operation. An SCX operation can use multiple groups
> of kfuncs.
> 

Can you merge this into the next patch? I don't think separating this out
helps with reviewing.

Thanks.

-- 
tejun