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* Re: [PATCH sched_ext/for-7.1-fixes] tools/sched_ext: Add missing -d option in scx_flatcg
       [not found] <20260418092247.1541377-1-yphbchou0911@gmail.com>
@ 2026-04-19 16:04 ` Tejun Heo
  2026-04-19 16:08   ` Cheng-Yang Chou
  0 siblings, 1 reply; 2+ messages in thread
From: Tejun Heo @ 2026-04-19 16:04 UTC (permalink / raw)
  To: Cheng-Yang Chou, sched-ext, David Vernet, Andrea Righi,
	Changwoo Min
  Cc: Ching-Chun Huang, Chia-Ping Tsai, Emil Tsalapatis, linux-kernel

Hello,

-d is dead code - it just sets dump_cgrps which is only echoed in the
status-line printf, nothing actually dumps the cgroup hierarchy. The
right thing to do is remove the whole thing - the 'd' in getopt(), case
'd':, the dump_cgrps variable and its printf - rather than document dead
code as a feature.

Want to spin a removal patch?

Thanks.

-- 
tejun

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH sched_ext/for-7.1-fixes] tools/sched_ext: Add missing -d option in scx_flatcg
  2026-04-19 16:04 ` [PATCH sched_ext/for-7.1-fixes] tools/sched_ext: Add missing -d option in scx_flatcg Tejun Heo
@ 2026-04-19 16:08   ` Cheng-Yang Chou
  0 siblings, 0 replies; 2+ messages in thread
From: Cheng-Yang Chou @ 2026-04-19 16:08 UTC (permalink / raw)
  To: Tejun Heo
  Cc: sched-ext, David Vernet, Andrea Righi, Changwoo Min,
	Ching-Chun Huang, Chia-Ping Tsai, Emil Tsalapatis, linux-kernel

Hi Tejun,

On Sun, Apr 19, 2026 at 06:04:34AM -1000, Tejun Heo wrote:
> -d is dead code - it just sets dump_cgrps which is only echoed in the
> status-line printf, nothing actually dumps the cgroup hierarchy. The
> right thing to do is remove the whole thing - the 'd' in getopt(), case
> 'd':, the dump_cgrps variable and its printf - rather than document dead
> code as a feature.
> 
> Want to spin a removal patch?

Yeah, for sure! Thanks for the explanation, will do!

-- 
Cheers,
Cheng-Yang

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2026-04-19 16:04 ` [PATCH sched_ext/for-7.1-fixes] tools/sched_ext: Add missing -d option in scx_flatcg Tejun Heo
2026-04-19 16:08   ` Cheng-Yang Chou

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