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From: Peter Oskolkov <posk@google.com>
To: Tao Zhou <tao.zhou@linux.dev>
Cc: Peter Oskolkov <posk@posk.io>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
	Paul Turner <pjt@google.com>, Ben Segall <bsegall@google.com>,
	Andrei Vagin <avagin@google.com>, Jann Horn <jannh@google.com>,
	Thierry Delisle <tdelisle@uwaterloo.ca>
Subject: Re: [PATCH 4/4 v0.5] sched/umcg: add Documentation/userspace-api/umcg.rst
Date: Tue, 14 Sep 2021 09:57:46 -0700	[thread overview]
Message-ID: <CAPNVh5eY68FSWEFwQuqN69rx2gvAn6T04SvV6MA=uEhtdy-Uyw@mail.gmail.com> (raw)
In-Reply-To: <YUDPWnsLRoU8StFi@geo.homenetwork>

On Tue, Sep 14, 2021 at 9:34 AM Tao Zhou <tao.zhou@linux.dev> wrote:

[...]

> > +- worker to worker context switch:
> > +  ``W1:RUNNING+W2:IDLE => W1:IDLE+W2:RUNNING``:
> > +
> > +  - in the userspace, in the context of W1 running:
> > +
> > +    - ``W2:IDLE => W2:RUNNING|LOCKED`` (mark W2 as running)
> > +    - ``W1:RUNNING => W1:IDLE|LOCKED`` (mark self as idle)
> > +    - ``W2.next_tid := W1.next_tid; S.next_tid := W2.next_tid``
>                                                         ^^^^^^^^
> W2.next_tid is a server. S.next_tid should be a worker; say:
>
>   S.next_tid := W2.tid

You are definitely right here. I'll fix the doc in the next patchset.

      reply	other threads:[~2021-09-14 16:58 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08 18:49 [PATCH 0/4 v0.5] sched/umcg: RFC UMCG patchset Peter Oskolkov
2021-09-08 18:49 ` [PATCH 1/4 v0.5] sched/umcg: add WF_CURRENT_CPU and externise ttwu Peter Oskolkov
2021-09-08 18:49 ` [PATCH 2/4 v0.5] sched/umcg: RFC: add userspace atomic helpers Peter Oskolkov
2021-09-08 23:38   ` Jann Horn
2021-09-09  1:16     ` Jann Horn
2021-09-09 19:06     ` Peter Oskolkov
2021-09-09 21:20       ` Jann Horn
2021-09-09 22:09         ` Peter Oskolkov
2021-09-09 23:13           ` Jann Horn
2021-09-14 16:52         ` Andy Lutomirski
2021-09-14 18:11           ` Peter Zijlstra
2021-09-14 18:40             ` Andy Lutomirski
2021-09-15 15:42               ` Peter Zijlstra
2021-09-15 16:50                 ` Andy Lutomirski
2021-09-15 19:10                   ` Peter Zijlstra
2021-09-14  8:07       ` Peter Zijlstra
2021-09-14 16:29         ` Peter Oskolkov
2021-09-14 18:04           ` Peter Zijlstra
2021-09-14 18:15             ` Peter Zijlstra
2021-09-14 18:29             ` Peter Oskolkov
2021-09-14 18:48               ` Peter Oskolkov
2021-09-08 18:49 ` [PATCH 3/4 v0.5] sched/umcg: RFC: implement UMCG syscalls Peter Oskolkov
2021-09-09  1:39   ` Jann Horn
2021-09-14 16:51     ` Peter Oskolkov
2021-09-08 18:49 ` [PATCH 4/4 v0.5] sched/umcg: add Documentation/userspace-api/umcg.rst Peter Oskolkov
2021-09-14 16:35   ` Tao Zhou
2021-09-14 16:57     ` Peter Oskolkov [this message]

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