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Date: Tue, 26 Jul 2016 11:32:25 -0700
From: "W. Trevor King" <wking@tremily.us>
To: Andrew Vagin <avagin@virtuozzo.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>,
	Serge Hallyn <serge.hallyn@canonical.com>,
	Andrey Vagin <avagin@openvz.org>,
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	Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH 0/5 RFC] Add an interface to discover relationships
 between namespaces
Message-ID: <20160726183224.GN24913@odin.tremily.us>
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On Tue, Jul 26, 2016 at 11:25:24AM -0700, Andrew Vagin wrote:
> Sure. If a process wants to compare two namespaces, it needs to get file
> descriptors for them (open /proc/PID/ns/XXX, use new ioctl-s, find a
> process which has them),
> and then it calls kcmp(pid1, pid2, KCMP_NSFD, ns_fd1, ns_fd2)

If you use the new ioctl-s to get ns_fd2, do you walk your local /proc
to find pid2?

Cheers,
Trevor

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