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From: Tejun Heo <tj@kernel.org>
To: Yuri Andriaccio <yuri.andriaccio@santannapisa.it>
Cc: luca abeni <luca.abeni@santannapisa.it>,
	Peter Zijlstra <peterz@infradead.org>,
	Yuri Andriaccio <yurand2000@gmail.com>,
	Ingo Molnar <mingo@redhat.com>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
	linux-kernel@vger.kernel.org, hannes@cmpxchg.org,
	mkoutny@suse.com, cgroups@vger.kernel.org
Subject: Re: [RFC PATCH v5 20/29] sched/deadline: Allow deeper hierarchies of RT cgroups
Date: Tue, 12 May 2026 08:19:02 -1000	[thread overview]
Message-ID: <b549b3cb062f2823ba6d4723b7b9260b@kernel.org> (raw)
In-Reply-To: <c446b9be-38d7-425c-9ca8-eda721fe1c9e@santannapisa.it>

Hello,

How is a delegated subtree prevented from setting cpu.rt.min = 'root' and
escaping its ancestors' cpu.rt.max budget?

Thanks.

--
tejun

  reply	other threads:[~2026-05-12 18:19 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260430213835.62217-1-yurand2000@gmail.com>
     [not found] ` <20260430213835.62217-14-yurand2000@gmail.com>
2026-05-05 13:04   ` [RFC PATCH v5 13/29] sched/rt: Implement dl-server operations for rt-cgroups Peter Zijlstra
     [not found] ` <20260430213835.62217-15-yurand2000@gmail.com>
2026-05-05 13:16   ` [RFC PATCH v5 14/29] sched/rt: Update task event callbacks for HCBS scheduling Peter Zijlstra
     [not found] ` <20260430213835.62217-16-yurand2000@gmail.com>
2026-05-05 14:36   ` [RFC PATCH v5 15/29] sched/rt: Update rt-cgroup schedulability checks Peter Zijlstra
     [not found] ` <20260430213835.62217-19-yurand2000@gmail.com>
2026-05-05 14:59   ` [RFC PATCH v5 18/29] sched/core: Cgroup v2 support Peter Zijlstra
2026-05-06 19:58     ` luca abeni
2026-05-07  7:01       ` Peter Zijlstra
2026-05-07 13:30         ` luca abeni
2026-05-07 14:16           ` Peter Zijlstra
     [not found] ` <20260430213835.62217-20-yurand2000@gmail.com>
2026-05-05 15:01   ` [RFC PATCH v5 19/29] sched/rt: Remove support for cgroups-v1 Peter Zijlstra
2026-05-07 15:35     ` Juri Lelli
     [not found] ` <20260430213835.62217-21-yurand2000@gmail.com>
2026-05-05 15:15   ` [RFC PATCH v5 20/29] sched/deadline: Allow deeper hierarchies of RT cgroups Peter Zijlstra
2026-05-05 19:56     ` Tejun Heo
2026-05-07 10:53       ` Peter Zijlstra
2026-05-07 15:03         ` Juri Lelli
2026-05-07 15:05           ` Peter Zijlstra
2026-05-07 16:39           ` luca abeni
2026-05-11  9:29             ` Juri Lelli
2026-05-11 17:52               ` Tejun Heo
2026-05-07 16:44         ` luca abeni
2026-05-11  9:40         ` luca abeni
2026-05-11 18:15           ` Tejun Heo
2026-05-11 17:37         ` Tejun Heo
2026-05-07 14:30       ` luca abeni
2026-05-11 18:28         ` Tejun Heo
2026-05-12 17:38           ` Yuri Andriaccio
2026-05-12 18:19             ` Tejun Heo [this message]
2026-05-12 18:20               ` Tejun Heo
     [not found] ` <20260430213835.62217-23-yurand2000@gmail.com>
2026-05-05 15:20   ` [RFC PATCH v5 22/29] sched/rt: Add rt-cgroup migration functions Peter Zijlstra
2026-05-05 15:24   ` Peter Zijlstra

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