From owner-freebsd-hackers@freebsd.org  Wed Mar 14 06:12:27 2018
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From: Jamie Landeg-Jones <jamie@catflap.org>
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Date: Wed, 14 Mar 2018 06:12:24 +0000
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To: theron.tarigo@gmail.com, freebsd-hackers@freebsd.org
Subject: Re: GSoC Idea: per-process filesystem namespaces for FreeBSD
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Linux has already implemented something similar - with mount namespaces.

http://man7.org/linux/man-pages/man7/mount_namespaces.7.html

cheers!