From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 7/8] cgroup: mount cgroupns-root when inside non-init cgroupns Date: Wed, 2 Dec 2015 11:58:39 -0500 Message-ID: <20151202165839.GD19878@mtj.duckdns.org> References: <1447703505-29672-1-git-send-email-serge@hallyn.com> <1447703505-29672-8-git-send-email-serge@hallyn.com> <20151124171610.GS17033@mtj.duckdns.org> <20151127051745.GA24521@mail.hallyn.com> <20151130150938.GF3535@mtj.duckdns.org> <20151201040704.GA31067@mail.hallyn.com> <20151201164649.GD12922@mtj.duckdns.org> <20151201215853.GA9153@mail.hallyn.com> <20151202165312.GB19878@mtj.duckdns.org> <20151202165637.GA20840@mail.hallyn.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20151202165637.GA20840-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Serge E. Hallyn" Cc: serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, adityakali-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lxc-devel-cunTk1MwBs9qMoObBWhMNEqPaTDuhLve2LY78lusg7I@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org List-Id: linux-api@vger.kernel.org On Wed, Dec 02, 2015 at 10:56:37AM -0600, Serge E. Hallyn wrote: > Can it be flushed when we know that the cgroup is being pinned by > a css_set? (There's either a task or a cgroup_namespace pinning it > or we wouldn't get here) Yeap, it can be flushed. There's no ref coming out of cgroup to the vfs objects. Thanks. -- tejun