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Sat, 07 Nov 2026 05:28:04 -0800 (PST) Received: from scheduler.schedules ([85.100.66.184]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4b7e326b7afsm66823065e9.2.2026.11.07.05.28.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Nov 2026 05:28:04 -0800 (PST) Date: Sat, 7 Nov 2026 16:28:01 +0300 From: Kayra Cizmeci To: Peter Zijlstra Cc: mingo@kernel.org, linux-kernel@vger.kernel.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, kprateek.nayak@amd.com, joshdon@google.com, tj@kernel.org, jakub@okonski.org Subject: Re: [RFC][PATCH 3/3] sched/eevdf: Fix sched idle task group preemption Message-ID: References: <20261105165525.011876858@infradead.org> <20261105170157.765325702@infradead.org> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20261105170157.765325702@infradead.org> On Thu, Nov 05, 2026 at 05:55:28PM +0100, Peter Zijlstra wrote: > From: Vincent Guittot > > Even with flat hierarchy which puts all runnable tasks in the same cfs rq, > we need to parse the hierarchy to check for sched_idle task group. > > Fixes: 85570f10a4c6 ("sched/eevdf: Move to a single runqueue") > Reported-by: Jakub OkoĊ„ski > Signed-off-by: Vincent Guittot > Signed-off-by: Peter Zijlstra (Intel) > Link: https://lore.kernel.org/all/58dc8e8a-7260-43ce-aebb-8d9c29a6afc9@okonski.org/ > Link: https://patch.msgid.link/20261019182622.1584454-1-vincent.guittot@linaro.org My first old concern is solved. So.. (Dramatic Wait With A Really Serious Song) ... ... Reviewed-by: Kayra Cizmeci