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Date:   Thu, 16 May 2019 21:57:54 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     viro@...iv.linux.org.uk
Cc:     linux-kernel@...r.kernel.org, linux-abi@...r.kernel.org,
        christian@...uner.io, dhowells@...hat.com
Subject: Re: [PATCH 0/4] uapi, vfs: Change the mount API UAPI [ver #2]

>	unshare(CLONE_FILES);
> 	/* we don't want anything past stderr here */
> 	close_range(3, ~0U);
> 	execve(....);

Yes please.

nextfd(2)
https://lkml.org/lkml/2012/4/1/71

fdmap(2)
https://marc.info/?t=150628366900006&r=1&w=4

I like fdmap more.

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