linux-kernel - Re: [PATCH v3 1/1] waitid: Add support for waiting for the current process group

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Message-ID: <20190814161517.ldbn62mulk2pmqo5@wittgenstein>
Date:   Wed, 14 Aug 2019 18:15:17 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Oleg Nesterov <oleg@...hat.com>
Cc:     linux-kernel@...r.kernel.org, libc-alpha@...rceware.org,
        alistair23@...il.com, ebiederm@...ssion.com, arnd@...db.de,
        dalias@...c.org, torvalds@...ux-foundation.org,
        adhemerval.zanella@...aro.org, fweimer@...hat.com,
        palmer@...ive.com, macro@....com, zongbox@...il.com,
        akpm@...ux-foundation.org, viro@...iv.linux.org.uk, hpa@...or.com
Subject: Re: [PATCH v3 1/1] waitid: Add support for waiting for the current
 process group

On Wed, Aug 14, 2019 at 06:09:17PM +0200, Oleg Nesterov wrote:
> On 08/14, Christian Brauner wrote:
> >
> > and a signal could come in between the system call that
> > retrieved the process gorup and the call to waitid that changes the
>                         ^^^^^
> > current process group.
> 
> I noticed this typo only because I spent 2 minutes or more trying to
> understand this sentence ;) But yes, a signal handler or another thread

I'll try to rewrite it. :)

> can change pgrp in between.
> 
> Reviewed-by: Oleg Nesterov <oleg@...hat.com>
>