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SubjectRe: [PATCH] cgroupfs: create /sys/fs/cgroup to mount cgroupfs on
On Thu, Jul 22, 2010 at 8:36 PM, Greg KH <> wrote:
> On Thu, Jul 22, 2010 at 11:31:07AM -0700, Paul Menage wrote:
>> On Thu, Jul 22, 2010 at 11:26 AM, Greg KH <> wrote:
>> > We really shouldn't be asking userspace to create new root filesystems.
>> > So follow along with all of the other in-kernel filesystems, and provide
>> > a mount point in sysfs.
>> >
>> > For cgroupfs, this should be in /sys/fs/cgroup/  This change provides
>> > that mount point when the cgroup filesystem is registered in the kernel.
>> But cgroups will typically have multiple mounts, with different
>> resource controllers/options on each mount. That doesn't really fit in
>> with this scheme.
> Really?  I see systems mounting it at /cgroups/ in the filesystem today.
> Where are you expecting it to be mounted at?

Not really. It is getting mounted at /cgroups/<name of resource
controller>/ at a number of places. Keeping it in sysfs loses us a lot
of this flexibility. Unless you are ready to keep adding a new
mountpoint for each subsystem, it will not really work out in the long

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