From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH v6 0/7] freezer for cgroup v2 Date: Thu, 24 Jan 2019 07:26:23 -0800 Message-ID: <20190124152623.GH50184@devbig004.ftw2.facebook.com> References: <20181222000307.28231-1-guro@fb.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=0FVwBJEbGSCpbztzTtTWXO0usmZDa4dlEKlgDqHqCvA=; b=B8AqbH/hEr7vFeOCysJs7BMVx3i84OMajQGOlflkd98UzHDo0h0ijKJXNfYwVy/+rX Sk+Vt6Dr5Y34f+gGZc/qAst6tHczDauakCVy22pKxBWFPjnRi98SE+HtVUrHJd55h52K 0MYyAKhMTfDpiE0TA8a+yMIS9z5W3XZvjehss3rxSDOa7bcsV/4+OEbzUtbRbGcVECRS KkbsuU7HI4rfxZHi6XMwtb7ZSiBJxYmU8OavhKWqCZrasgWtKk2+Jn3WXKUMV+De1AF/ 5MaGD7gCkbvlm0ZeGhPqUZRSewl4Zxu8Ot0PweRe1VZYsFW4t01Vm5qkGSPvqUUrMw3Z ucZA== Content-Disposition: inline In-Reply-To: <20181222000307.28231-1-guro@fb.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Roman Gushchin Cc: Oleg Nesterov , kernel-team@fb.com, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Roman Gushchin 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