linux-kernel - Re: [RFC PATCH 3/5] sched/core: Track blocked tasks retained on rq for proxy

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Message-ID: <4c91be40-fcd8-4e5b-a584-7b65ab9dd086@amd.com>
Date: Tue, 18 Nov 2025 10:08:58 +0530
From: K Prateek Nayak <kprateek.nayak@....com>
To: Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>, Vincent Guittot
	<vincent.guittot@...aro.org>, John Stultz <jstultz@...gle.com>, "Johannes
 Weiner" <hannes@...xchg.org>, Suren Baghdasaryan <surenb@...gle.com>,
	<linux-kernel@...r.kernel.org>
CC: Dietmar Eggemann <dietmar.eggemann@....com>, Steven Rostedt
	<rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman
	<mgorman@...e.de>, Valentin Schneider <vschneid@...hat.com>
Subject: Re: [RFC PATCH 3/5] sched/core: Track blocked tasks retained on rq
 for proxy

On 11/18/2025 12:25 AM, K Prateek Nayak wrote:
> @@ -6649,6 +6676,9 @@ find_proxy_task(struct rq *rq, struct task_struct *donor, struct rq_flags *rf)
>  	return owner;
>  }
>  #else /* SCHED_PROXY_EXEC */
> +bool is_proxy_task(struct task_struct *p) { return false; }
> +static inline void set_task_proxy(struct task_struct *p) { }
> +static inline void clear_task_proxy(p) { }

I clearly messed that up for !CONFIG_SCHED_PROXY_EXEC

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 765365b81b12..d51c35e26d80 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6682,7 +6682,7 @@ find_proxy_task(struct rq *rq, struct task_struct *donor, struct rq_flags *rf)
 #else /* SCHED_PROXY_EXEC */
 bool is_proxy_task(struct task_struct *p) { return false; }
 static inline void set_task_proxy(struct task_struct *p) { }
-static inline void clear_task_proxy(p) { }
+static inline void clear_task_proxy(struct task_struct *p) { }
 static bool __proxy_deactivate(struct rq *rq, struct task_struct *donor) { return false; }
 static struct task_struct *
 find_proxy_task(struct rq *rq, struct task_struct *donor, struct rq_flags *rf)


>  static struct task_struct *
>  find_proxy_task(struct rq *rq, struct task_struct *donor, struct rq_flags *rf)
>  {
-- 
Thanks and Regards,
Prateek