From: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Andrea Righi <arighi@nvidia.com>, Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Christian Loehle <christian.loehle@arm.com>,
Koba Ko <kobak@nvidia.com>,
Felix Abecassis <fabecassis@nvidia.com>,
Balbir Singh <balbirs@nvidia.com>,
Joel Fernandes <joelagnelf@nvidia.com>,
Shrikanth Hegde <sshegde@linux.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] sched/fair: Drop redundant RCU read lock in NOHZ kick path
Date: Tue, 5 May 2026 11:15:12 +0200 [thread overview]
Message-ID: <4b4aadb2-a159-4ed9-852e-8aeb53d798ab@arm.com> (raw)
In-Reply-To: <20260428144352.3575863-2-arighi@nvidia.com>
On 28.04.26 16:41, Andrea Righi wrote:
[...]
> @@ -12799,10 +12795,10 @@ static void nohz_balancer_kick(struct rq *rq)
> *
> * Skip the LLC logic because it's not relevant in that case.
> */
> - goto unlock;
> + goto out;
> }
>
> - sds = rcu_dereference_all(per_cpu(sd_llc_shared, cpu));
> + sds = rcu_dereference_all(per_cpu(sd_balance_shared, cpu));
nit: sd_balance_shared is only defined in 2/5.
[...]
next parent reply other threads:[~2026-05-05 9:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260428144352.3575863-1-arighi@nvidia.com>
[not found] ` <20260428144352.3575863-2-arighi@nvidia.com>
2026-05-05 9:15 ` Dietmar Eggemann [this message]
2026-05-05 9:22 ` [PATCH 1/5] sched/fair: Drop redundant RCU read lock in NOHZ kick path Andrea Righi
[not found] ` <20260428144352.3575863-3-arighi@nvidia.com>
2026-05-05 12:48 ` [PATCH 2/5] sched/fair: Attach sched_domain_shared to sd_asym_cpucapacity Dietmar Eggemann
2026-05-06 9:45 ` Vincent Guittot
2026-05-06 10:19 ` K Prateek Nayak
2026-05-06 10:30 ` Vincent Guittot
2026-05-05 20:40 ` [PATCH v5 0/5] sched/fair: SMT-aware asymmetric CPU capacity Dietmar Eggemann
[not found] ` <20260428144352.3575863-4-arighi@nvidia.com>
2026-05-05 17:20 ` [PATCH 3/5] sched/fair: Prefer fully-idle SMT cores in asym-capacity idle selection Dietmar Eggemann
2026-05-06 18:31 ` Andrea Righi
2026-05-06 10:29 ` Vincent Guittot
2026-05-06 12:34 ` Vincent Guittot
2026-05-06 18:15 ` Andrea Righi
[not found] ` <20260428144352.3575863-6-arighi@nvidia.com>
2026-05-06 12:59 ` [PATCH 5/5] sched/fair: Add SIS_UTIL support to select_idle_capacity() Vincent Guittot
2026-05-06 17:01 ` Dietmar Eggemann
2026-05-06 18:11 ` Andrea Righi
2026-05-07 6:47 ` Vincent Guittot
2026-05-08 14:49 ` Dietmar Eggemann
2026-05-08 22:05 ` Andrea Righi
2026-05-09 18:01 Andrea Righi
2026-05-09 18:01 ` [PATCH 1/5] sched/fair: Drop redundant RCU read lock in NOHZ kick path Andrea Righi
-- strict thread matches above, loose matches on Subject: below --
2026-05-09 18:07 [PATCH v6 0/5 RESEND] sched/fair: SMT-aware asymmetric CPU capacity Andrea Righi
2026-05-09 18:07 ` [PATCH 1/5] sched/fair: Drop redundant RCU read lock in NOHZ kick path Andrea Righi
2026-05-11 13:04 ` Vincent Guittot
2026-05-15 6:49 ` Shrikanth Hegde
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