linux-kernel - Re: [PATCH 2/2] prctl.2: Document the new PR_GET_TASK

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Date:   Fri, 3 May 2019 11:40:41 -0400
From:   Joel Savitz <jsavitz@...hat.com>
To:     David Laight <David.Laight@...lab.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Kristina Martsenko <kristina.martsenko@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Cyrill Gorcunov <gorcunov@...il.com>,
        Kees Cook <keescook@...omium.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Micah Morton <mortonm@...omium.org>,
        Yang Shi <yang.shi@...ux.alibaba.com>,
        Jann Horn <jannh@...gle.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Rafael Aquini <aquini@...hat.com>,
        Michael Kerrisk <mtk.manpages@...il.com>
Subject: Re: [PATCH 2/2] prctl.2: Document the new PR_GET_TASK_SIZE option

On Fri, May 3, 2019 at 7:20 AM David Laight <David.Laight@...lab.com> wrote:
> Shouldn't this say what the value is?
> ISTR a recent patch to change the was the 'used to be constant' TASK_SIZE is defined.
> I think it might be 'The highest userspace virtual address the current
> process can use.' But I might be wrong.

I believe you are correct David. I will add this information to the
manpage in the upcoming v3.
Best,
Joel Savitz