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 A3D88C43619 for ; Mon, 5 Apr 2021 16:04:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67F76613DD for ; Mon, 5 Apr 2021 16:04:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242169AbhDEQE7 (ORCPT ); Mon, 5 Apr 2021 12:04:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:56974 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242147AbhDEQE4 (ORCPT ); Mon, 5 Apr 2021 12:04:56 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C2F8F613C8; Mon, 5 Apr 2021 16:04:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617638690; bh=S90Qc4S09UsEM8as6c0miYWhG2tCiQPkyucwsFYFP1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NeALLyP4RRammmq88QqlmUNUHdeUcUmzlW3xkfkRjZhi6aOrz8+Se9a+1zRUZdUno LMnoLrQFyPO0H22PeO8bAelY44RePjK1cJwTTIfGkXoSXXH+3sOF35cUtMcptjqFp2 18F1OzcwSkR5U5NvcqLXZVACKy4vNqPKX0A3wx3bQ0Tv/iKG21WVNAJB7mDJlNSoyK XjnKy3n3aOG/Xw1J/6EqF966v0xpw1JifmkAMRETqOCO5JaC1fufWP0mYULMXRVeeP 9yCLEgg1uSy6V8l0QvrAEquEl19E/t5m6rOQgwG4gO805kjlsVABLOC5SFq3pQdLnH b+lIk75pEE93Q== 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 5.10 15/22] radix tree test suite: Register the main thread with the RCU library Date: Mon, 5 Apr 2021 12:04:24 -0400 Message-Id: <20210405160432.268374-15-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210405160432.268374-1-sashal@kernel.org> References: <20210405160432.268374-1-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