From patchwork Mon Nov 19 03:51:27 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 10688181 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 750CF13B5 for ; Mon, 19 Nov 2018 03:52:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 63893286CA for ; Mon, 19 Nov 2018 03:52:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5827429AC9; Mon, 19 Nov 2018 03:52:00 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0CAF429AC4 for ; Mon, 19 Nov 2018 03:52:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728210AbeKSOOP (ORCPT ); Mon, 19 Nov 2018 09:14:15 -0500 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:62740 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726903AbeKSOOP (ORCPT ); Mon, 19 Nov 2018 09:14:15 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1542599519; x=1574135519; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZIIjB7gNVpAOpRwCqgvSYsejmZ9E4J4t+YZiNAL7w7c=; b=OJNtPItSLtcFEoda6vmOWP9Y9R0PUUV6q+jKlkTXOeGADMEMyw4jnoLs jF66TVzA+ct5/cDOCguSfT7CKT7/evxWvsIqiCI48PWIvxpDw0qVEBpus YAiURgewuQoo60qbmek0Dhcy9Fi3ruyuxvl2JJ7W6+I9+FLgZJ7IQo9i2 PH0kRJMEfDm6DmNC8eVp6bekrkkWC6SsJFZ3cCN23vpZHNnM6Gh3exT6T YZ5zZWYvAyCWWXMjvkqRc/avhAfZe+96m+NMXuQO4qTChATAK+bAlGInh wL77q2on5vXKcV3238YssicsAlNstmVIjEkAjOL3M49FtMgHKkIEBfs62 A==; X-IronPort-AV: E=Sophos;i="5.56,250,1539619200"; d="scan'208";a="96272451" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 19 Nov 2018 11:51:42 +0800 Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP; 18 Nov 2018 19:34:41 -0800 Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip02.wdc.com with ESMTP; 18 Nov 2018 19:51:40 -0800 From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe Cc: Adam Manzanares , Alexander Viro , linux-fsdevel@vger.kernel.org Subject: [PATCH 3/7] block: Fix get_task_ioprio() default return value Date: Mon, 19 Nov 2018 12:51:27 +0900 Message-Id: <20181119035131.11255-4-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181119035131.11255-1-damien.lemoal@wdc.com> References: <20181119035131.11255-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP As explained in ioprio_get() and ionice man pages, the default I/O priority class for processes which have not set an I/O priority using ioprio_set() is IOPRIO_CLASS_BE and not IOPRIO_CLASS_NONE. Signed-off-by: Damien Le Moal --- block/ioprio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/ioprio.c b/block/ioprio.c index f9821080c92c..ea5be206eb26 100644 --- a/block/ioprio.c +++ b/block/ioprio.c @@ -163,7 +163,7 @@ static int get_task_ioprio(struct task_struct *p) ret = security_task_getioprio(p); if (ret) goto out; - ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, IOPRIO_NORM); + ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_NORM); task_lock(p); if (p->io_context) ret = p->io_context->ioprio;