Re: [PATCH] Add the max_usage member on the res_counter

Andrew Morton
2008-03-12T04:40:54Z

On Tue, 11 Mar 2008 17:55:46 +0300 Pavel Emelyanov <xemul@openvz.org> wrote:

> This field is the maximal value of the usage one since the counter
> creation (or since the latest reset).
>
> To reset this to the usage value simply write anything to the
> appropriate cgroup file.

What is the justification for making this change? Why do we need it?
Please provide this information for all patches where it is not obvious.

> {
> + .name = "max_usage_in_bytes",
> + .private = RES_MAX_USAGE,
> + .write = mem_cgroup_max_reset,
> + .read_u64 = mem_cgroup_read,
> + },

Documentation/controllers/memory.txt needs updating.