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[195.135.220.15]) by mx.google.com with ESMTPS id r25si509171edb.15.2019.03.20.00.05.19 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 20 Mar 2019 00:05:19 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning mhocko@kernel.org does not designate 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning mhocko@kernel.org does not designate 195.135.220.15 as permitted sender) smtp.mailfrom=mhocko@kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 8B739AE16; Wed, 20 Mar 2019 07:05:18 +0000 (UTC) Date: Wed, 20 Mar 2019 08:05:16 +0100 From: Michal Hocko To: Christopher Lameter Cc: akpm@linux-foundation.org, mm-commits@vger.kernel.org, yong.wu@mediatek.com, yingjoe.chen@mediatek.com, yehs1@lenovo.com, willy@infradead.org, will.deacon@arm.com, vbabka@suse.cz, tfiga@google.com, stable@vger.kernel.org, rppt@linux.vnet.ibm.com, robin.murphy@arm.com, rientjes@google.com, penberg@kernel.org, mgorman@techsingularity.net, matthias.bgg@gmail.com, joro@8bytes.org, iamjoonsoo.kim@lge.com, hsinyi@chromium.org, hch@infradead.org, Alexander.Levin@microsoft.com, drinkcat@chromium.org, linux-mm@kvack.org Subject: Re: + mm-add-sys-kernel-slab-cache-cache_dma32.patch added to -mm tree Message-ID: <20190320070516.GD30433@dhcp22.suse.cz> References: <20190319183751.rWqkf%akpm@linux-foundation.org> <20190319191721.GC30433@dhcp22.suse.cz> <01000169988825c0-df946577-83d4-4fc5-a329-52b65bec9735-000000@email.amazonses.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <01000169988825c0-df946577-83d4-4fc5-a329-52b65bec9735-000000@email.amazonses.com> User-Agent: Mutt/1.10.1 (2018-07-13) 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 Wed 20-03-19 00:37:33, Cristopher Lameter wrote: > On Tue, 19 Mar 2019, Michal Hocko wrote: > > > > > I believe I have asked and didn't get a satisfactory answer before IIRC. Who > > is going to consume this information? > > The slabinfo tool consumes this information. Slabinfo just prints that information without any additional logic AFAICS. So this doesn't look like a usecase to add an API to maintain for ever. Or is anybody using slabinfo to use this information for anything useful? -- Michal Hocko SUSE Labs