From: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
To: Kevin Wilson <wkevils-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: noprefix mount option
Date: Sat, 30 Nov 2013 08:49:29 +0800 [thread overview]
Message-ID: <52993619.2090903@huawei.com> (raw)
In-Reply-To: <CAGXs5wVd-fD5xcFJbeN-uSbEKczYuDbBp0BE=vhuM34eBgsqXA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On 2013/11/29 22:36, Kevin Wilson wrote:
> Hello,
> I hope this is the right place to ask.
> As far as I know, the noprefix mount option is valid only for cpuset.
>
> I ran the following sequence of Fedora 18, 3.6.10-4.fc18.x86_64:
>
> mkdir /mytest
> mount -t tmpfs testcg /mytest
> mkdir /mytest/testprefix
> mount -t cgroup -o noprefix,cpuset testnonprefix /mytest/testprefix/
>
> I expected that entries under /mytest/testprefix/ will be without the
> "cpuset" prefix. However, this is what I get:
>
> ls /mytest/testprefix/
> cgroup.clone_children cpuset.memory_pressure_enabled
> cgroup.event_control cpuset.memory_spread_page
> cgroup.procs cpuset.memory_spread_slab
> cpuset.cpu_exclusive cpuset.mems
> cpuset.cpus cpuset.sched_load_balance
> cpuset.mem_exclusive cpuset.sched_relax_domain_level
> cpuset.mem_hardwall notify_on_release
> cpuset.memory_migrate release_agent
> cpuset.memory_pressure tasks
>
>
> any ideas ? Am I missing something ?
>
I've tried this, and it works for me.
My guess is, cpuset had already been mounted:
# mount -t cgroup -o noprefix,cpuset xxx /cgroup
# ls /cgroup
cgroup.clone_children mem_hardwall mems
cgroup.event_control memory_migrate notify_on_release
cgroup.procs memory_pressure release_agent
cpu_exclusive memory_pressure_enabled sched_load_balance
cpus memory_spread_page sched_relax_domain_level
mem_exclusive memory_spread_slab tasks
# umount /cgroup
# mount -t cgroup -o cpuset xxx /cgroup
# ls /cgroup
cgroup.clone_children cpuset.mem_hardwall cpuset.mems
cgroup.event_control cpuset.memory_migrate cpuset.sched_load_balance
cgroup.procs cpuset.memory_pressure cpuset.sched_relax_domain_level
cpuset.cpu_exclusive cpuset.memory_pressure_enabled notify_on_release
cpuset.cpus cpuset.memory_spread_page release_agent
cpuset.mem_exclusive cpuset.memory_spread_slab tasks
# mount -t cgroup -o noprefix,cpuset xxx /cgroup2/
# ls /cgroup2/
cgroup.clone_children cpuset.mem_hardwall cpuset.mems
cgroup.event_control cpuset.memory_migrate cpuset.sched_load_balance
cgroup.procs cpuset.memory_pressure cpuset.sched_relax_domain_level
cpuset.cpu_exclusive cpuset.memory_pressure_enabled notify_on_release
cpuset.cpus cpuset.memory_spread_page release_agent
cpuset.mem_exclusive cpuset.memory_spread_slab tasks
next prev parent reply other threads:[~2013-11-30 0:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-29 14:36 noprefix mount option Kevin Wilson
[not found] ` <CAGXs5wVd-fD5xcFJbeN-uSbEKczYuDbBp0BE=vhuM34eBgsqXA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-11-30 0:49 ` Li Zefan [this message]
[not found] ` <52993619.2090903-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2013-11-30 10:51 ` Kevin Wilson
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