From patchwork Wed Sep 26 21:51:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Duyck X-Patchwork-Id: 10616929 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8BB20913 for ; Wed, 26 Sep 2018 21:51:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7A8392B891 for ; Wed, 26 Sep 2018 21:51:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6EA582B8BC; Wed, 26 Sep 2018 21:51:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 23F282B891 for ; Wed, 26 Sep 2018 21:51:35 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id DA5D4211597FD; Wed, 26 Sep 2018 14:51:34 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: None (no SPF record) identity=mailfrom; client-ip=134.134.136.65; helo=mga03.intel.com; envelope-from=alexander.h.duyck@linux.intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 9669B21B02822 for ; Wed, 26 Sep 2018 14:51:33 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Sep 2018 14:51:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,307,1534834800"; d="scan'208";a="94009066" Received: from ahduyck-mobl.amr.corp.intel.com (HELO localhost.localdomain) ([10.7.198.154]) by orsmga001.jf.intel.com with ESMTP; 26 Sep 2018 14:51:32 -0700 Subject: [RFC workqueue/driver-core PATCH 0/5] Add NUMA aware async_schedule calls From: Alexander Duyck To: linux-nvdimm@lists.01.org, gregkh@linuxfoundation.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, tj@kernel.org, akpm@linux-foundation.org Date: Wed, 26 Sep 2018 14:51:32 -0700 Message-ID: <20180926214433.13512.30289.stgit@localhost.localdomain> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: len.brown@intel.com, rafael@kernel.org, jiangshanlai@gmail.com, pavel@ucw.cz, zwisler@kernel.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP This patch set provides functionality that will help to improve the locality of the async_schedule calls used to provide deferred initialization. This patch set originally started out with me focused on just the one call to async_schedule_domain in the nvdimm tree that was being used to defer the device_add call however after doing some digging I realized the scope of this was much broader than I had originally planned. As such I went through and reworked the underlying infrastructure down to replacing the queue_work call itself with a function of my own and opted to try and provide a NUMA aware solution that would work for a broader audience. I am submitting this an RFC to figure out just how far off I am from where I need to be on this patch set and to determine which tree I should ultimately be submitting this to. --- Alexander Duyck (5): workqueue: Provide queue_work_near to queue work near a given NUMA node async: Add support for queueing on specific NUMA node driver core: Probe devices asynchronously instead of the driver driver core: Use new async_schedule_dev command nvdimm: Schedule device registration on node local to the device drivers/base/bus.c | 23 +------- drivers/base/dd.c | 44 +++++++++++++++ drivers/base/power/main.c | 12 ++-- drivers/nvdimm/bus.c | 11 +++- include/linux/async.h | 27 ++++++++- include/linux/workqueue.h | 2 + kernel/async.c | 62 ++++++++++++++++------ kernel/workqueue.c | 129 ++++++++++++++++++++++++++++++++++++++++++++- 8 files changed, 258 insertions(+), 52 deletions(-) --