[lxc-devel] [PATCH 7/8] cgroup: mount cgroupns-root when inside non-init cgroupns
Tejun Heo
tj at kernel.org
Mon Nov 30 15:09:38 UTC 2015
Hello, Serge.
On Thu, Nov 26, 2015 at 11:17:45PM -0600, Serge E. Hallyn wrote:
> > Wouldn't it be simpler to walk dentry from kernfs root than
> > duplicating dentry instantiation?
>
> Sorry I don't think I'm following. Are you suggesting walking the
> kn->parent chain backward and doing d_lookup() at each point starting
> with sb->s_root?
Yeah, something like that. I wonder whether there are already code
paths doing that. What we need is a straight path walk. I could be
wrong but it shouldn't be that complex and if it works out we can
avoid introducing another instantiation / lookup path.
Thanks.
--
tejun
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