Re: cgroups(7): documenting /sys/kernel/cgroup files

From: Michael Kerrisk (man-pages)
Date: Tue Jan 09 2018 - 13:52:54 EST


Hello ROman,

On 01/09/2018 12:28 PM, Roman Gushchin wrote:
> Hello, Michael!
>
> Overall looks good to me, one small nit below.
>
> On Mon, Jan 08, 2018 at 10:11:43PM +0100, Michael Kerrisk (man-pages) wrote:
>> Hello Roman,
>>
>> I wrote cgroups(7) text below to document the files added by you in
>> Linux 4.15. Could you let me know if the following text is okay please:
>>
>> /sys/kernel/cgroup files
>> /sys/kernel/cgroup/delegate (since Linux 4.15)
>> This file exports a list of the cgroups v2 files (one per
>> line) that are delegatable (i.e., whose ownership should be
>> changed to the user ID of the delegatee). In the future,
>> the set of delegatable files may change or grow, and this
>> file provides a way for the kernel to inform user-space
>> applications of which files must be delegated. As at Linux
>> 4.15, one sees the following when inspecting this file:
>>
>> $ cat /sys/kernel/cgroup/delegate
>> cgroup.procs
>> cgroup.subtree_control
>>
>> /sys/kernel/cgroup/features (since Linux 4.15)
>> Over time, the set of cgroups v2 features that are provided
>> by the kernel may change or grow, or some features may not
>> be enabled by default. This file provides a way for user-
>> space applications to discover what features the running
>> kernel supports or has enabled. Features are listed one
> ^^
> I would replace "or" with "and" here.

Yes. Done.

> Please, feel free to add
> Reviewed-by: Roman Gushchin <guro@xxxxxx>
Thanks!

Cheers,

Michael

--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/