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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 29396C43617 for ; Mon, 5 Apr 2021 16:04:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E2F1D613AD for ; Mon, 5 Apr 2021 16:04:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241887AbhDEQEe (ORCPT ); Mon, 5 Apr 2021 12:04:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:55918 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242066AbhDEQEa (ORCPT ); Mon, 5 Apr 2021 12:04:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 034B9613C4; Mon, 5 Apr 2021 16:04:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617638663; bh=S90Qc4S09UsEM8as6c0miYWhG2tCiQPkyucwsFYFP1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YY0NhW4GfJJGPQNng7qFYUS5TWYegbbRk9Bi/VsHVJu2Oo+cVcBfBy5kUeZmA+qjS T+303ZNKLUjYhv1lpvbOX8k/5gniGRFKM+si9oAjeqkLLTatZhwW+FLAk9AZ3ISFgV 75+DIkuZ7bcGrJUGXRhoLLTsbAWALQ63PWjbQvrRkpi4zdYzCcyWvXjUO6sRhjK0w1 nJIRV5dhEgZ2IqZ9T71aJW8kck37nx9AN8Xo+siSzX2vdjMqOlyN/1tvbMnDC1BUMg Dy9qPwNM8rUNJrZskIUbjpnvH8F0N6roqHYu4J95C4ylsQUqTULxCmibIWOF7qcna2 V6jS2IfmCar+w== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , Chris von Recklinghausen , Sasha Levin , linux-fsdevel@vger.kernel.org Subject: [PATCH AUTOSEL 5.11 15/22] radix tree test suite: Register the main thread with the RCU library Date: Mon, 5 Apr 2021 12:03:58 -0400 Message-Id: <20210405160406.268132-15-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210405160406.268132-1-sashal@kernel.org> References: <20210405160406.268132-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: "Matthew Wilcox (Oracle)" [ Upstream commit 1bb4bd266cf39fd2fa711f2d265c558b92df1119 ] Several test runners register individual worker threads with the RCU library, but neglect to register the main thread, which can lead to objects being freed while the main thread is in what appears to be an RCU critical section. Reported-by: Chris von Recklinghausen Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Sasha Levin --- tools/testing/radix-tree/idr-test.c | 2 ++ tools/testing/radix-tree/multiorder.c | 2 ++ tools/testing/radix-tree/xarray.c | 2 ++ 3 files changed, 6 insertions(+) diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c index 3b796dd5e577..44ceff95a9b3 100644 --- a/tools/testing/radix-tree/idr-test.c +++ b/tools/testing/radix-tree/idr-test.c @@ -577,6 +577,7 @@ void ida_tests(void) int __weak main(void) { + rcu_register_thread(); radix_tree_init(); idr_checks(); ida_tests(); @@ -584,5 +585,6 @@ int __weak main(void) rcu_barrier(); if (nr_allocated) printf("nr_allocated = %d\n", nr_allocated); + rcu_unregister_thread(); return 0; } diff --git a/tools/testing/radix-tree/multiorder.c b/tools/testing/radix-tree/multiorder.c index 9eae0fb5a67d..e00520cc6349 100644 --- a/tools/testing/radix-tree/multiorder.c +++ b/tools/testing/radix-tree/multiorder.c @@ -224,7 +224,9 @@ void multiorder_checks(void) int __weak main(void) { + rcu_register_thread(); radix_tree_init(); multiorder_checks(); + rcu_unregister_thread(); return 0; } diff --git a/tools/testing/radix-tree/xarray.c b/tools/testing/radix-tree/xarray.c index e61e43efe463..f20e12cbbfd4 100644 --- a/tools/testing/radix-tree/xarray.c +++ b/tools/testing/radix-tree/xarray.c @@ -25,11 +25,13 @@ void xarray_tests(void) int __weak main(void) { + rcu_register_thread(); radix_tree_init(); xarray_tests(); radix_tree_cpu_dead(1); rcu_barrier(); if (nr_allocated) printf("nr_allocated = %d\n", nr_allocated); + rcu_unregister_thread(); return 0; } -- 2.30.2