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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 C987BC43441 for ; Wed, 10 Oct 2018 23:07:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 539A720870 for ; Wed, 10 Oct 2018 23:07:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 539A720870 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726212AbeJKGba (ORCPT ); Thu, 11 Oct 2018 02:31:30 -0400 Received: from mga03.intel.com ([134.134.136.65]:16823 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726011AbeJKGba (ORCPT ); Thu, 11 Oct 2018 02:31:30 -0400 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; 10 Oct 2018 16:07:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,366,1534834800"; d="scan'208";a="98329137" Received: from ahduyck-mobl.amr.corp.intel.com (HELO localhost.localdomain) ([10.7.198.156]) by orsmga001.jf.intel.com with ESMTP; 10 Oct 2018 16:07:10 -0700 Subject: [workqueue/driver-core PATCH v2 0/5] Add NUMA aware async_schedule calls From: Alexander Duyck To: tj@kernel.org, gregkh@linuxfoundation.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org Cc: len.brown@intel.com, rafael@kernel.org, linux-pm@vger.kernel.org, jiangshanlai@gmail.com, pavel@ucw.cz, zwisler@kernel.org, alexander.h.duyck@linux.intel.com Date: Wed, 10 Oct 2018 16:07:10 -0700 Message-ID: <20181010230435.10609.77825.stgit@localhost.localdomain> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. RFC->v1: Dropped nvdimm patch to submit later. It relies on code in libnvdimm development tree. Simplified queue_work_near to just convert node into a CPU. Split up drivers core and PM core patches. v1->v2: Renamed queue_work_near to queue_work_node Added WARN_ON_ONCE if we use queue_work_node with per-cpu workqueue --- Alexander Duyck (5): workqueue: Provide queue_work_node 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: Attach devices on CPU local to device node PM core: Use new async_schedule_dev command drivers/base/bus.c | 23 ++---------- drivers/base/dd.c | 44 +++++++++++++++++++++++- drivers/base/power/main.c | 12 +++--- include/linux/async.h | 36 ++++++++++++++++++- include/linux/workqueue.h | 2 + kernel/async.c | 47 ++++++++++++------------- kernel/workqueue.c | 84 +++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 193 insertions(+), 55 deletions(-) --