From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: "Serge E. Hallyn" <serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
Cc: "Michael Kerrisk (man-pages)"
<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Serge E. Hallyn"
<serge.hallyn-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org
Subject: Re: [PATCH] mountinfo: implement show_path for kernfs and cgroup
Date: Fri, 6 May 2016 13:42:32 -0400 [thread overview]
Message-ID: <20160506174232.GC7110@mtj.duckdns.org> (raw)
In-Reply-To: <20160506173356.GA1228-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
Hello,
On Fri, May 06, 2016 at 12:33:56PM -0500, Serge E. Hallyn wrote:
> Right. So in particular, docker wants to do something like:
>
> bindpath=`grep freezer /proc/self/mountinfo | tail -n 1 | awk '{ print $4 }'`
> mountpoint=`grep freezer /proc/self/mountinfo | tail -n 1 | awk '{ print $5 }'`
> mycg=`awk -F: '/freezer/ { print $3 }' /proc/self/cgroup`
> cat ${mountpoint}/${bindpath}/${mycg}/cgroup.procs
>
> and see its own task.
Can you please make the example more concrete? e.g. Use actual paths
and show what they show now vs. what they should.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: "Serge E. Hallyn" <serge@hallyn.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>,
"Serge E. Hallyn" <serge.hallyn@ubuntu.com>,
linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
containers@lists.linux-foundation.org, hannes@cmpxchg.org,
ebiederm@xmission.com, gregkh@linuxfoundation.org,
cgroups@vger.kernel.org, akpm@linux-foundation.org
Subject: Re: [PATCH] mountinfo: implement show_path for kernfs and cgroup
Date: Fri, 6 May 2016 13:42:32 -0400 [thread overview]
Message-ID: <20160506174232.GC7110@mtj.duckdns.org> (raw)
In-Reply-To: <20160506173356.GA1228@mail.hallyn.com>
Hello,
On Fri, May 06, 2016 at 12:33:56PM -0500, Serge E. Hallyn wrote:
> Right. So in particular, docker wants to do something like:
>
> bindpath=`grep freezer /proc/self/mountinfo | tail -n 1 | awk '{ print $4 }'`
> mountpoint=`grep freezer /proc/self/mountinfo | tail -n 1 | awk '{ print $5 }'`
> mycg=`awk -F: '/freezer/ { print $3 }' /proc/self/cgroup`
> cat ${mountpoint}/${bindpath}/${mycg}/cgroup.procs
>
> and see its own task.
Can you please make the example more concrete? e.g. Use actual paths
and show what they show now vs. what they should.
Thanks.
--
tejun
next prev parent reply other threads:[~2016-05-06 17:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 15:20 [PATCH] mountinfo: implement show_path for kernfs and cgroup Serge E. Hallyn
2016-05-05 15:20 ` Serge E. Hallyn
[not found] ` <20160505152058.GC13186-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2016-05-06 13:39 ` Michael Kerrisk (man-pages)
2016-05-06 13:39 ` Michael Kerrisk (man-pages)
[not found] ` <6db5b7e5-3f15-39bd-cc9e-e3c296378e54-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-05-06 17:33 ` Serge E. Hallyn
2016-05-06 17:33 ` Serge E. Hallyn
[not found] ` <20160506173356.GA1228-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2016-05-06 17:42 ` Tejun Heo
2016-05-06 17:42 ` Tejun Heo [this message]
2016-05-06 17:42 ` Tejun Heo
2016-05-06 17:42 ` Michael Kerrisk (man-pages)
2016-05-06 17:42 ` Michael Kerrisk (man-pages)
[not found] ` <CAKgNAkhCZrZevznOX_PqcckX0oJEMYbOir1tK7J+4qKtzUBwpg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-05-06 19:32 ` Serge E. Hallyn
2016-05-06 19:32 ` Serge E. Hallyn
2016-05-06 19:32 ` Serge E. Hallyn
-- strict thread matches above, loose matches on Subject: below --
2016-05-09 14:59 Serge E. Hallyn
2016-05-09 14:59 Serge E. Hallyn
2016-05-09 14:59 ` Serge E. Hallyn
[not found] ` <20160509145955.GA12316-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2016-05-09 16:19 ` Tejun Heo
2016-05-09 16:19 ` Tejun Heo
2016-05-09 16:19 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160506174232.GC7110@mtj.duckdns.org \
--to=tj-dgejt+ai2ygdnm+yrofe0a@public.gmane.org \
--cc=akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
--cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org \
--cc=gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org \
--cc=hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org \
--cc=linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org \
--cc=serge.hallyn-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.