linux-kernel - Re: [PATCH v9 0/9] freezer for cgroup v2

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Message-ID: <20190325165946.GA30208@tower.DHCP.thefacebook.com>
Date:   Mon, 25 Mar 2019 16:59:53 +0000
From:   Roman Gushchin <guro@...com>
To:     Oleg Nesterov <oleg@...hat.com>
CC:     Tejun Heo <tj@...nel.org>, Kernel Team <Kernel-team@...com>,
        "cgroups@...r.kernel.org" <cgroups@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v9 0/9] freezer for cgroup v2

Hello, Oleg!

Can you, please, take a look at the latest version of the patchset?
I'd really appreciate it!

Thank you!

Roman

On Sat, Mar 16, 2019 at 10:58:03AM -0700, 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. Patchse (7) and (8) adding tracing points to simplify
> the debugging process. Patch (9) adds corresponding docs.
> 
> v9->v8:
>   - added support for vfork
>   - added a kselftest test for vfork case
>   - several tests fixes/improvements
>   - renamed stopped* into frozen* across the patchset
>   - added trace points
>   - other minor fixes