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Fri, 21 Aug 2020 08:08:18 -0700 (PDT) Subject: Re: [PATCH v6 0/4] Charge loop device i/o to issuing cgroup To: Dan Schatzberg , Shakeel Butt Cc: Alexander Viro , Jan Kara , Amir Goldstein , Tejun Heo , Li Zefan , Johannes Weiner , Michal Hocko , Vladimir Davydov , Andrew Morton , Hugh Dickins , Roman Gushchin , Chris Down , Yang Shi , Thomas Gleixner , "Peter Zijlstra (Intel)" , Ingo Molnar , Mathieu Desnoyers , Andrea Arcangeli , "open list:BLOCK LAYER" , open list , "open list:FILESYSTEMS (VFS and infrastructure)" , "open list:CONTROL GROUP (CGROUP)" , "open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)" References: <20200528135444.11508-1-schatzberg.dan@gmail.com> <20200821150405.GA4137@dschatzberg-fedora-PC0Y6AEN.dhcp.thefacebook.com> From: Jens Axboe Message-ID: <9b55ca3d-cca5-50ae-4085-5a1866f77308@kernel.dk> Date: Fri, 21 Aug 2020 09:08:16 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200821150405.GA4137@dschatzberg-fedora-PC0Y6AEN.dhcp.thefacebook.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 3139B180F8B86 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 8/21/20 9:04 AM, Dan Schatzberg wrote: > On Thu, Aug 20, 2020 at 10:06:44AM -0700, Shakeel Butt wrote: >> On Thu, May 28, 2020 at 6:55 AM Dan Schatzberg wrote: >>> >>> Much of the discussion about this has died down. There's been a >>> concern raised that we could generalize infrastructure across loop, >>> md, etc. This may be possible, in the future, but it isn't clear to me >>> how this would look like. I'm inclined to fix the existing issue with >>> loop devices now (this is a problem we hit at FB) and address >>> consolidation with other cases if and when those need to be addressed. >>> >> >> What's the status of this series? > > Thanks for reminding me about this. I haven't got any further > feedback. I'll bug Jens to take a look and see if he has any concerns > and if not send a rebased version. No immediate concerns, I think rebasing and sending one against the current tree is probably a good idea. Then we can hopefully get it queued up for 5.10. -- Jens Axboe