From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH v2] cgroup: disable irqs while holding css_set_lock Date: Thu, 16 Jun 2016 18:14:34 -0400 Message-ID: <20160616221434.GI3262@mtj.duckdns.org> References: <1465325475-30593-1-git-send-email-bristot@redhat.com> <20160607193008.GA31708@htj.duckdns.org> <6f15f27f-3757-5413-4292-1386e95bc278@redhat.com> <38469b61-7cc5-5fec-4de3-0e9a616dfe95@redhat.com> <20160616220315.GH3262@mtj.duckdns.org> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=QJWct6XELjECYXPHrQ58CeDBwi/PYMslrwoAirMjBtc=; b=OWRToi3XQYb5rJ9I75eMRral/LaGzg58JGSfNCBYXbMavKw1UiZYfucbSy8k3ztq4r m7evOi2X0M301V4jvg7lIDA4raldCSL+a21R9e4d5E1xPY884Yv2xYUqKFg3up5Xx+v8 9LI+MgxBPW40odbYdBgkBnd+DDV0GcA/tnKyBN2zy/3pisZngYeQY37xWgSlEvMoVQqB zXScRqeOsEpxjawPDmZLghrWnrSVWUNDPzxZQh9pbBG4XEpezupfO1kos3/sQ/D9NIPe iDKs7gUO7tJgmOI2RkJVW7PD90hOQ4z9OiJrsEmhnDtWnG75COb5vk1jNkART92fhUtA sy2w== Content-Disposition: inline In-Reply-To: <20160616220315.GH3262@mtj.duckdns.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Daniel Bristot de Oliveira Cc: linux-kernel@vger.kernel.org, Rik van Riel , "Luis Claudio R. Goncalves" , Li Zefan , Johannes Weiner , Juri Lelli , cgroups@vger.kernel.org On Thu, Jun 16, 2016 at 06:03:15PM -0400, Tejun Heo wrote: > On Thu, Jun 16, 2016 at 06:48:56PM -0300, Daniel Bristot de Oliveira wrote: > > On 06/07/2016 05:05 PM, Daniel Bristot de Oliveira wrote: > > > On 06/07/2016 04:30 PM, Tejun Heo wrote: > > >> Is this something in mainline? This forces all task free path to be > > >> irq-safe, which *could* be fine but it's weird to make cgroup free > > >> path irq-safe for something which isn't in mainline. > > > > > > you mean, mainline linux kernel? if so, yes it is. I was running the > > > v4.7-rc2 from Linus, as is.... no external patches applied. > > > > > > > is there any other question/objection about this patch? > > Nope, I was just on vacation. Applied to cgroup/for-4.7-fixes. Except that the patch seems to use irqsave/restore instead of plain irq ones in places. Care to update those? Thanks! -- tejun