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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 0A054C43441 for ; Wed, 10 Oct 2018 23:09:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B535D2075C for ; Wed, 10 Oct 2018 23:09:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B535D2075C 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 S1726896AbeJKGdm (ORCPT ); Thu, 11 Oct 2018 02:33:42 -0400 Received: from mga03.intel.com ([134.134.136.65]:17062 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726220AbeJKGdm (ORCPT ); Thu, 11 Oct 2018 02:33:42 -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 16:09:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,366,1534834800"; d="scan'208";a="98329358" 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 16:08:40 -0700 Subject: [workqueue/driver-core PATCH v2 4/5] driver core: Attach devices on CPU local to device node 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 16:08:40 -0700 Message-ID: <20181010230836.10609.73485.stgit@localhost.localdomain> In-Reply-To: <20181010230435.10609.77825.stgit@localhost.localdomain> References: <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 change makes it so that we call the asynchronous probe routines on a CPU local to the device node. By doing this we should be able to improve our initialization time significantly as we can avoid having to access the device from a remote node which may introduce higher latency. Signed-off-by: Alexander Duyck --- drivers/base/dd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 5ba366c1cb83..81472dc44a70 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -826,7 +826,7 @@ static int __device_attach(struct device *dev, bool allow_async) */ dev_dbg(dev, "scheduling asynchronous probe\n"); get_device(dev); - async_schedule(__device_attach_async_helper, dev); + async_schedule_dev(__device_attach_async_helper, dev); } else { pm_request_idle(dev); } @@ -927,7 +927,7 @@ static int __driver_attach(struct device *dev, void *data) if (!dev->driver) { get_device(dev); dev_set_drvdata(dev, drv); - async_schedule(__driver_attach_async_helper, dev); + async_schedule_dev(__driver_attach_async_helper, dev); } device_unlock(dev); return 0;