Re: [PATCH RFC] mm/madvise: implement MADV_STOCKPILE (kswapd from user space)

From: Michal Hocko
Date: Mon May 27 2019 - 10:25:14 EST


On Mon 27-05-19 16:12:23, Michal Hocko wrote:
> [Cc linux-api. Please always cc this list when proposing a new user
> visible api. Keeping the rest of the email intact for reference]
>
> On Mon 27-05-19 13:05:58, Konstantin Khlebnikov wrote:
[...]
> > This implements manual kswapd-style memory reclaim initiated by userspace.
> > It reclaims both physical memory and cgroup pages. It works in context of
> > task who calls syscall madvise thus cpu time is accounted correctly.

I do not follow. Does this mean that the madvise always reclaims from
the memcg the process is member of?
--
Michal Hocko
SUSE Labs