From: Qais Yousef <qyousef@layalina.io>
To: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Jens Axboe <axboe@kernel.dk>, Metin Kaya <metin.kaya@arm.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, linux-mm@kvack.org,
Phil Auld <pauld@redhat.com>
Subject: Re: [PATCH v5 1/2] sched/rt: Clean up usage of rt_task()
Date: Mon, 10 Jun 2024 20:21:41 +0100 [thread overview]
Message-ID: <20240610192141.dibvhzrvx7hacvd7@airbuntu> (raw)
In-Reply-To: <af031e33-74db-40ba-abdd-ef1bf32e4caf@redhat.com>
On 06/05/24 16:07, Daniel Bristot de Oliveira wrote:
> On 6/5/24 15:24, Qais Yousef wrote:
> >>> But rt is a shortened version of realtime, and so it is making *it less*
> >>> clear that we also have DL here.
> >> Can SCHED_DL be considered a real-time scheduling class as in opposite
> >> to SCHED_BATCH for instance? Due to its requirements it fits for a real
> >> time scheduling class, right?
> >> And RT (as in real time) already includes SCHED_RR and SCHED_FIFO.
> > Yeah I think the usage of realtime to cover both makes sense. I followed your
> > precedence with task_is_realtime().
> >
> > Anyway. If people really find this confusing, what would make sense is to split
> > them and ask users to call rt_task() and dl_task() explicitly without this
> > wrapper. I personally like it better with the wrapper. But happy to follow the
> > crowd.
>
> For me, doing dl_ things it is better to keep them separate, so I can
> easily search for dl_ specific checks.
>
> rt_or_dl_task(p);
I posted a new version with this suggestion as the top patch so that it can be
shredded more :-)
Thanks for having a look.
Cheers
--
Qais Yousef
next prev parent reply other threads:[~2024-06-10 19:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 14:42 [PATCH v5 0/2] " Qais Yousef
2024-06-04 14:42 ` [PATCH v5 1/2] sched/rt: " Qais Yousef
[not found] ` <b298bca1-190f-48a2-8d2c-58d54b879c72@redhat.com>
2024-06-04 16:37 ` Steven Rostedt
2024-06-05 9:32 ` Sebastian Andrzej Siewior
2024-06-05 13:24 ` Qais Yousef
2024-06-05 14:07 ` Daniel Bristot de Oliveira
2024-06-10 19:21 ` Qais Yousef [this message]
2024-06-05 14:05 ` Daniel Bristot de Oliveira
2024-06-04 14:42 ` [PATCH v5 2/2] sched/rt, dl: Convert functions to return bool Qais Yousef
2024-06-04 16:28 ` Steven Rostedt
2024-06-05 6:54 ` Metin Kaya
2024-06-05 9:33 ` [PATCH v5 0/2] Clean up usage of rt_task() Sebastian Andrzej Siewior
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