linux-kernel - Re: [PATCH RESEND] kthread, tracing: Don't expose half-written comm when creating kthreads

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Date:   Mon, 23 Jul 2018 16:23:09 +0200
From:   Snild Dolkow <snild@...y.com>
To:     Steven Rostedt <rostedt@...dmis.org>
CC:     <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>,
        Jens Axboe <axboe@...nel.dk>, Tejun Heo <tj@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Enderborg <peter.enderborg@...y.com>,
        Yoshitaka Seto <yoshitaka.seto@...y.com>,
        Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>,
        KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
        John Stultz <john.stultz@...aro.org>
Subject: Re: [PATCH RESEND] kthread, tracing: Don't expose half-written comm
 when creating kthreads

On 07/23/2018 03:55 PM, Steven Rostedt wrote:

> Can you add a comment here stating something to the affect of:
> 		/* task is now visible to other tasks */
>
> -- Steve
Sure, but isn't that a bit misleading? It will have been visible since
some unknown point in time between waking up kthreadd and the return of
wait_for_completion(); we're not the ones making it visible.

//Snild