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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98DB4ECAAD2 for ; Thu, 1 Sep 2022 22:19:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235191AbiIAWTZ (ORCPT ); Thu, 1 Sep 2022 18:19:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234779AbiIAWST (ORCPT ); Thu, 1 Sep 2022 18:18:19 -0400 Received: from mail-qt1-x829.google.com (mail-qt1-x829.google.com [IPv6:2607:f8b0:4864:20::829]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 723995809E for ; Thu, 1 Sep 2022 15:18:08 -0700 (PDT) Received: by mail-qt1-x829.google.com with SMTP id cb8so281045qtb.0 for ; Thu, 01 Sep 2022 15:18:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelfernandes.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=3vWNR1lOZ3nlNpU4UUmxfmJYajX79MfO1ObVeBbomlg=; b=W9V/oqA+OZMtsddIG83NBCyyox5x44+ormS/AjYTPNmA6tq1LLUSu1mTv373zuQAmL stXAk/bY0nw2tv3MorrBWKQVz0OdcObvezxEjnW0fZHXmStt0csE5tLilyFNZXZtzQ7e hZ35XQl1bl0u/iHRILvxndSITlzXxbNnrQw8k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=3vWNR1lOZ3nlNpU4UUmxfmJYajX79MfO1ObVeBbomlg=; b=YSwBhQGXsFr3c7HzdnDCs3XvM9v18yOP9pVDjSaewIhoroEHKWjRd6tSCHTUVhfF9M WYCwNGPA4Qfulx5tY2jvztWREoWyQyGo3pyk1MsAYX27YO0dhu0VSi7kebZLf+WTFVD/ fHz9J/VpNkNDxYiR1aYGP62Y2BRYYMz6T3VqlYFAwZ6IiVI6kBPcf4xooYCnANVUJL8M r5aHTlq3iAEUtUVW5LY7eX5uGSL8j4fg0a3pZ8WENoK1RgD/tXCex1ThtZelNYYOE6IV b+zZKukM7Kg0E9rabWvq419W6f0q13vfPop8unNhoIZOGFRo5x2SAH2U4jtJjaWH91MP oDpA== X-Gm-Message-State: ACgBeo3poCL+QVpdhqj/dLPaGtkgU1Qf32e1JcNf1pDoyh0FqYaoNDEC HXAAMc/BNoCcqvXh5nIvfljFyA== X-Google-Smtp-Source: AA6agR7Md6xYqwWArMXYWwgIpGr8i6bhrZ317pWwHfXCZUjbF4/68mUbJbpxMEPOI/zS/oZi2CAc+g== X-Received: by 2002:ac8:5786:0:b0:343:3051:170d with SMTP id v6-20020ac85786000000b003433051170dmr25646460qta.429.1662070688111; Thu, 01 Sep 2022 15:18:08 -0700 (PDT) Received: from joelboxx.c.googlers.com.com (228.221.150.34.bc.googleusercontent.com. [34.150.221.228]) by smtp.gmail.com with ESMTPSA id s16-20020ac85290000000b0034305a91aaesm11060794qtn.83.2022.09.01.15.18.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Sep 2022 15:18:07 -0700 (PDT) From: "Joel Fernandes (Google)" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, rushikesh.s.kadam@intel.com, urezki@gmail.com, neeraj.iitr10@gmail.com, frederic@kernel.org, paulmck@kernel.org, rostedt@goodmis.org, vineeth@bitbyteword.org, boqun.feng@gmail.com, "Joel Fernandes (Google)" Subject: [PATCH v5 15/18] kernel: Move various core kernel usages to call_rcu_lazy() Date: Thu, 1 Sep 2022 22:17:17 +0000 Message-Id: <20220901221720.1105021-16-joel@joelfernandes.org> X-Mailer: git-send-email 2.37.2.789.g6183377224-goog In-Reply-To: <20220901221720.1105021-1-joel@joelfernandes.org> References: <20220901221720.1105021-1-joel@joelfernandes.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Joel Fernandes (Google) --- kernel/exit.c | 2 +- kernel/pid.c | 2 +- kernel/time/posix-timers.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index 84021b24f79e..b2a96356980a 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -180,7 +180,7 @@ static void delayed_put_task_struct(struct rcu_head *rhp) void put_task_struct_rcu_user(struct task_struct *task) { if (refcount_dec_and_test(&task->rcu_users)) - call_rcu(&task->rcu, delayed_put_task_struct); + call_rcu_lazy(&task->rcu, delayed_put_task_struct); } void release_task(struct task_struct *p) diff --git a/kernel/pid.c b/kernel/pid.c index 2fc0a16ec77b..5a5144519d70 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -153,7 +153,7 @@ void free_pid(struct pid *pid) } spin_unlock_irqrestore(&pidmap_lock, flags); - call_rcu(&pid->rcu, delayed_put_pid); + call_rcu_lazy(&pid->rcu, delayed_put_pid); } struct pid *alloc_pid(struct pid_namespace *ns, pid_t *set_tid, diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 5dead89308b7..660daa427b41 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -485,7 +485,7 @@ static void release_posix_timer(struct k_itimer *tmr, int it_id_set) } put_pid(tmr->it_pid); sigqueue_free(tmr->sigq); - call_rcu(&tmr->rcu, k_itimer_rcu_free); + call_rcu_lazy(&tmr->rcu, k_itimer_rcu_free); } static int common_timer_create(struct k_itimer *new_timer) -- 2.37.2.789.g6183377224-goog