From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 963A5C282CD for ; Mon, 28 Jan 2019 23:01:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5559E2171F for ; Mon, 28 Jan 2019 23:01:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548716515; bh=ebqpyxFJCfFEC5OAjn/SpAmIwxFq2i7YUX3t8E+s3XA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=apOsN5jdu305ShmqE91NjDwaYIJfi0km4jwQTaKcIIEgqPN7l5IUvl0GuSUjmek/y bAOvDBqJr4GuQocqoX+5qYRe8iKUtsm6yglzp9h4bou3tbszrG6nhOcOz0ju+E2Jdn 7prBroEMzxlpyk2Rd04hkicH4BJxFFNEqcO0xL4E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727017AbfA1XBx (ORCPT ); Mon, 28 Jan 2019 18:01:53 -0500 Received: from mail-yb1-f193.google.com ([209.85.219.193]:34390 "EHLO mail-yb1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726678AbfA1XBx (ORCPT ); Mon, 28 Jan 2019 18:01:53 -0500 Received: by mail-yb1-f193.google.com with SMTP id k9so6917882ybg.1 for ; Mon, 28 Jan 2019 15:01:52 -0800 (PST) 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=vxgoQPA6ZPYEYvlFa80nTtCjSTPua4RFULptDtxyoro=; b=ffnL71qRlAnZTtFGlt0tV8/oBIKgUbazgwFjcSNAP3j3TtaFNQ31yI4TV0qI1Cgsth cnjSWNDrhNzaSiRCAmKQnAp+p8r9ENst3w8mS9MyRIk47sNRKJpksXNZJTCSLBa+RvqC rMQisXqBkhPPlChjyExdnINQ69derhJCtmHt4t4Dtg0jGVcShfdxwuzmLwn1oT/0w95y bvfjq9tW/HVRSk3cOcPnInCl7hGYaE3pMqyctAySJ5ghakHJAK0RVt7gm5qjVIlTrncj sCd+4zaVmF7QdbhIrs/k7sBgZiDKTbn2EqncBLmI2EMZrHivMjZg6CNyUsdHb4mzpdiq tIGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=vxgoQPA6ZPYEYvlFa80nTtCjSTPua4RFULptDtxyoro=; b=DtoV1GWZPr22dQjoAoWr1VRiWSdkjm7r6hKL3j/ZKN+zIpnKbI0TDji0myxjhgRMxs tAULYq+hUMYvJQNa8Cq8O/Cny1rciEdYkXEP/b2d7qlRLnB6MgI4laMCUa2jYuU4WL4o Ld72GdD4tS2MJ1ANTuLZeUGmHQUAL55V29c0b+G82nO70wA/Qv/9uBHIQm7+dyKpoJDs 6ygRPjuwpDJGFGVnXSqVHHwcy8u7nV0gghhWRxvE0mk9mu+9P01xjGp4Kczg8jSRmSgW py5oB3RDgI0NFF9RdYw4gApIYZETzfRU1sIpkijNI6u0/MRepvSNHJ+CG8pnBto/bRig UzMA== X-Gm-Message-State: AHQUAuYPPtdNvK96pDh3d4OubwJgh1O2mMg4MzwdR2Kx8E85ZSCiizsZ IjAYq12Ck1ZY1nC8R7MBk0g= X-Google-Smtp-Source: AHgI3IbxsjXUbjB2JBT1RbvmsvTf2kh4q2fXkI9mcGDprsh/hY3lOBEzN8q5CUcUWyCHbmiqaTpvAg== X-Received: by 2002:a25:bcc3:: with SMTP id l3mr1677649ybm.478.1548716512207; Mon, 28 Jan 2019 15:01:52 -0800 (PST) Received: from localhost ([2620:10d:c091:200::7:31a1]) by smtp.gmail.com with ESMTPSA id m126sm14426774ywd.39.2019.01.28.15.01.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 28 Jan 2019 15:01:51 -0800 (PST) Date: Mon, 28 Jan 2019 15:01:49 -0800 From: Tejun Heo To: Johannes Weiner Cc: Peter Zijlstra , Andrew Morton , Suren Baghdasaryan , Lai Jiangshan , linux-kernel@vger.kernel.org Subject: Re: [PATCH] psi: fix aggregation idle shut-off Message-ID: <20190128230149.GW50184@devbig004.ftw2.facebook.com> References: <20190116193501.1910-1-hannes@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190116193501.1910-1-hannes@cmpxchg.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Wed, Jan 16, 2019 at 02:35:01PM -0500, Johannes Weiner wrote: > +/** > + * wq_worker_last_func - retrieve worker's last work function > + * > + * Determine the last function a worker executed. This is called from > + * the scheduler to get a worker's last known identity. Maybe it can describe better why this is safe in this use case and not suitable as a generic interface but other than that, Acked-by: Tejun Heo Thanks. -- tejun