linux-kernel - Re: [PATCH v6 0/7] freezer for cgroup v2

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Message-ID: <20190124152623.GH50184@devbig004.ftw2.facebook.com>
Date:   Thu, 24 Jan 2019 07:26:23 -0800
From:   Tejun Heo <tj@...nel.org>
To:     Roman Gushchin <guroan@...il.com>
Cc:     Oleg Nesterov <oleg@...hat.com>, kernel-team@...com,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        Roman Gushchin <guro@...com>
Subject: Re: [PATCH v6 0/7] freezer for cgroup v2

On Fri, Dec 21, 2018 at 04:03:00PM -0800, Roman Gushchin wrote:
> This patchset implements freezer for cgroup v2.
> 
> It provides similar functionality as v1 freezer, but the interface
> conforms to the cgroup v2 interface design principles, and it
> provides a better user experience: tasks can be killed, ptrace works,
> there is no separate controller, which has to be enabled, etc.
> 
> Patches (1), (2) and (3) are some preparational work, patch (4) contains
> the implementation, patch (5) is a small cgroup kselftest fix,
> patch (6) covers freezer adds 6 new kselftests to cover the freezer
> functionality. Patch (7) adds corresponding docs.
> 
> v6->v5:
>   - reverted to clear TIF_SIGPENDING with additional checks before schedule(),
>   as proposed by Oleg Nesterov
>   - made cgroup v2 freezer working with the system freezer (by using
>   freezable_schedule())
>   - make freezer working with SIGSTOPped and PTRACEd tasks
>   - added tests to cover freezing a cgroup with SIGSTOPped and PTRACEd tasks

Oleg, ping?

Thanks.

-- 
tejun