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From: K Prateek Nayak <kprateek.nayak@amd.com>
To: Aaron Tomlin <atomlin@atomlin.com>, <mingo@redhat.com>,
	<peterz@infradead.org>, <juri.lelli@redhat.com>,
	<vincent.guittot@linaro.org>
Cc: <paulmck@kernel.org>, <dietmar.eggemann@arm.com>,
	<rostedt@goodmis.org>, <bsegall@google.com>, <mgorman@suse.de>,
	<vschneid@redhat.com>, <zhanxusheng1024@gmail.com>,
	<neelx@suse.com>, <chjohnst@mail.com>, <mproche@mail.com>,
	<sean@ashe.io>, <steve@abita.co>, <rishil1999@outlook.com>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v10 tip/sched/core 6/6] sched/debug: Introduce per-CPU debugfs files
Date: Fri, 30 Oct 2026 11:35:03 +0530	[thread overview]
Message-ID: <5ba8f652-6f82-4384-9343-1ff093880c39@amd.com> (raw)
In-Reply-To: <20261030013817.753804-7-atomlin@atomlin.com>

Hello Aaron,

On 10/30/2026 7:08 AM, Aaron Tomlin wrote:
> +static __init void debugfs_cpu_init(void)
> +{
> +	struct dentry *d_cpu_dir;
> +	unsigned long cpu;
> +	char buf[16];
> +
> +	d_cpu_dir = debugfs_create_dir("cpu", debugfs_sched);

Missing an error handling here in case this fails?

> +
> +	for_each_possible_cpu(cpu) {
> +		struct dentry *d_cpu;
> +
> +		snprintf(buf, sizeof(buf), "cpu%lu", cpu);
> +		d_cpu = debugfs_create_dir(buf, d_cpu_dir);
> +
> +		debugfs_create_file("debug", 0444, d_cpu, (void *) cpu, &sched_debug_cpu_fops);
> +	}
> +}
-- 
Thanks and Regards,
Prateek


  reply	other threads:[~2026-10-30  6:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-30  1:38 [PATCH v10 tip/sched/core 0/6] " Aaron Tomlin
2026-10-30  1:38 ` [PATCH v10 tip/sched/core 1/6] sched: Annotate rq->rd with __rcu and update lockless readers Aaron Tomlin
2026-10-30  4:41   ` K Prateek Nayak
2026-10-30 13:51     ` Aaron Tomlin
2026-10-30  1:38 ` [PATCH v10 tip/sched/core 2/6] sched/debug: Protect lockless rq->rd access in print_dl_rq() Aaron Tomlin
2026-10-30  1:38 ` [PATCH v10 tip/sched/core 3/6] sched/debug: Protect lockless rq->curr access in print_cpu() Aaron Tomlin
2026-10-30  1:38 ` [PATCH v10 tip/sched/core 4/6] sched/debug: Protect p->mm access in sched_show_numa() Aaron Tomlin
2026-10-30  1:38 ` [PATCH v10 tip/sched/core 5/6] sched/fair: Use list_for_each_entry_rcu() in print_cfs_stats() Aaron Tomlin
2026-10-30  1:38 ` [PATCH v10 tip/sched/core 6/6] sched/debug: Introduce per-CPU debugfs files Aaron Tomlin
2026-10-30  6:05   ` K Prateek Nayak [this message]
2026-10-30 13:07     ` Aaron Tomlin

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