linux-kernel - Re: [GIT PULL] namespaces related fixes for v4.11-rc1

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Date:   Thu, 23 Feb 2017 08:15:46 +1100
From:   Aleksa Sarai <asarai@...e.de>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-api@...r.kernel.org,
        Linux Containers <containers@...ts.linux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] namespaces related fixes for v4.11-rc1

> The only known user of this prctl systemd
> forks all children after the prctl.  So no userspace regressions will
> occur.

Note that runC and containerd (and thus Docker) as well as cri-o use the 
prctl as well -- to be able to collect exit codes from a non-child 
process (namely to collect the exit code from PID 1 in the container).

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/