linux-kernel - Re: [patch] close_range.2: new page documenting close

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Message-ID: <9020961b9cb4ebc61d6a07f603a226aa@sk2.org>
Date:   Wed, 09 Dec 2020 10:43:16 +0100
From:   Stephen Kitt <steve@....org>
To:     "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>,
        Christian Brauner <christian.brauner@...ntu.com>
Cc:     linux-man <linux-man@...r.kernel.org>,
        Alejandro Colomar <alx.manpages@...il.com>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [patch] close_range.2: new page documenting close_range(2)

Le 09/12/2020 10:40, Christian Brauner a écrit :
> On Wed, Dec 09, 2020 at 09:50:38AM +0100, Michael Kerrisk (man-pages) 
> wrote:
>> > +.PP
>> > +.I flags
>> > +can be set to
>> > +.B CLOSE_RANGE_UNSHARE
>> > +to unshare the range of file descriptors from any other processes,
>> > +.I instead
>> > +of closing them.
>> 
>> Really "instead of closing them"? I had supposed that rather that this
>> should be "before closing them". That's also how the kernel code reads
>> to me, from a quick glance.
> 
> It's also mentioned in the commit message. Basically setting
> CLOSE_RANGE_UNSHARE is equivalent to:
> 
> unshare(CLONE_FILES);
> close_range(<start>, <end>);

Yes, I got that mixed up, thanks for the clarification! I'll send a v2 
addressing the review comments later today.

Regards,

Stephen