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=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,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 7AB50C2D0DB for ; Mon, 20 Jan 2020 16:47:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 56A242073D for ; Mon, 20 Jan 2020 16:47:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729165AbgATQrS (ORCPT ); Mon, 20 Jan 2020 11:47:18 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:33645 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726642AbgATQrS (ORCPT ); Mon, 20 Jan 2020 11:47:18 -0500 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1itaCm-000438-81; Mon, 20 Jan 2020 17:47:12 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id C22301C1A41; Mon, 20 Jan 2020 17:47:11 +0100 (CET) Date: Mon, 20 Jan 2020 16:47:11 -0000 From: "tip-bot2 for Xiaochen Shen" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/urgent] x86/resctrl: Clean up unused function parameter in mkdir path Cc: Xiaochen Shen , Borislav Petkov , Reinette Chatre , Tony Luck , Thomas Gleixner , x86 , LKML In-Reply-To: <1578500886-21771-5-git-send-email-xiaochen.shen@intel.com> References: <1578500886-21771-5-git-send-email-xiaochen.shen@intel.com> MIME-Version: 1.0 Message-ID: <157953883153.396.9276824335957965312.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the x86/urgent branch of tip: Commit-ID: 32ada3b9e04c6f6d4916967bd8bbe2450ad5bc5e Gitweb: https://git.kernel.org/tip/32ada3b9e04c6f6d4916967bd8bbe2450ad5bc5e Author: Xiaochen Shen AuthorDate: Thu, 09 Jan 2020 00:28:06 +08:00 Committer: Borislav Petkov CommitterDate: Mon, 20 Jan 2020 17:00:41 +01:00 x86/resctrl: Clean up unused function parameter in mkdir path Commit 334b0f4e9b1b ("x86/resctrl: Fix a deadlock due to inaccurate reference") changed the argument to rdtgroup_kn_lock_live()/rdtgroup_kn_unlock() within mkdir_rdt_prepare(). That change resulted in an unused function parameter to mkdir_rdt_prepare(). Clean up the unused function parameter in mkdir_rdt_prepare() and its callers rdtgroup_mkdir_mon() and rdtgroup_mkdir_ctrl_mon(). Signed-off-by: Xiaochen Shen Signed-off-by: Borislav Petkov Reviewed-by: Reinette Chatre Reviewed-by: Tony Luck Acked-by: Thomas Gleixner Link: https://lkml.kernel.org/r/1578500886-21771-5-git-send-email-xiaochen.shen@intel.com --- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index 954fd04..2804562 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -2644,7 +2644,6 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) } static int mkdir_rdt_prepare(struct kernfs_node *parent_kn, - struct kernfs_node *prgrp_kn, const char *name, umode_t mode, enum rdt_group_type rtype, struct rdtgroup **r) { @@ -2754,15 +2753,12 @@ static void mkdir_rdt_prepare_clean(struct rdtgroup *rgrp) * to monitor a subset of tasks and cpus in its parent ctrl_mon group. */ static int rdtgroup_mkdir_mon(struct kernfs_node *parent_kn, - struct kernfs_node *prgrp_kn, - const char *name, - umode_t mode) + const char *name, umode_t mode) { struct rdtgroup *rdtgrp, *prgrp; int ret; - ret = mkdir_rdt_prepare(parent_kn, prgrp_kn, name, mode, RDTMON_GROUP, - &rdtgrp); + ret = mkdir_rdt_prepare(parent_kn, name, mode, RDTMON_GROUP, &rdtgrp); if (ret) return ret; @@ -2784,7 +2780,6 @@ static int rdtgroup_mkdir_mon(struct kernfs_node *parent_kn, * to allocate and monitor resources. */ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn, - struct kernfs_node *prgrp_kn, const char *name, umode_t mode) { struct rdtgroup *rdtgrp; @@ -2792,8 +2787,7 @@ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn, u32 closid; int ret; - ret = mkdir_rdt_prepare(parent_kn, prgrp_kn, name, mode, RDTCTRL_GROUP, - &rdtgrp); + ret = mkdir_rdt_prepare(parent_kn, name, mode, RDTCTRL_GROUP, &rdtgrp); if (ret) return ret; @@ -2867,14 +2861,14 @@ static int rdtgroup_mkdir(struct kernfs_node *parent_kn, const char *name, * subdirectory */ if (rdt_alloc_capable && parent_kn == rdtgroup_default.kn) - return rdtgroup_mkdir_ctrl_mon(parent_kn, parent_kn, name, mode); + return rdtgroup_mkdir_ctrl_mon(parent_kn, name, mode); /* * If RDT monitoring is supported and the parent directory is a valid * "mon_groups" directory, add a monitoring subdirectory. */ if (rdt_mon_capable && is_mon_groups(parent_kn, name)) - return rdtgroup_mkdir_mon(parent_kn, parent_kn->parent, name, mode); + return rdtgroup_mkdir_mon(parent_kn, name, mode); return -EPERM; }