linux-kernel - Re: [PATCH 1/2] clone3: add CLONE3_CLEAR

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Message-ID: <20191011221208.5eglbazksfigliob@yavin.dot.cyphar.com>
Date:   Sat, 12 Oct 2019 09:12:08 +1100
From:   Aleksa Sarai <cyphar@...har.com>
To:     Michael Kerrisk <mtk.manpages@...il.com>
Cc:     Christian Brauner <christian.brauner@...ntu.com>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Florian Weimer <fweimer@...hat.com>, libc-alpha@...rceware.org,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Shuah Khan <shuah@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Elena Reshetova <elena.reshetova@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Roman Gushchin <guro@...com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        "Dmitry V. Levin" <ldv@...linux.org>,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 1/2] clone3: add CLONE3_CLEAR_SIGHAND

On 2019-10-11, Michael Kerrisk <mtk.manpages@...il.com> wrote:
> Why CLONE3_CLEAR_SIGHAND rather than just CLONE_CLEAR_SIGHAND?

There are no more flag bits left for the classic clone()/clone2() (the
last one was used up by CLONE_PIDFD) -- thus this flag is clone3()-only.

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

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