From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F0C76FA7 for ; Sun, 17 Sep 2023 19:21:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C56A8C433C9; Sun, 17 Sep 2023 19:21:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694978493; bh=jhsIVnDQbJ72vP42LVD0LgF17jrT/kJyLWXMJGOaINo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ocw5lQ0vbtnmVO7DOxo1Y1hYPkusNvclPf7w3eZrnG20lIOma5x28t888Tp6KIV2U qmzxtfewB3K2RM7PQPI1ENLvt9PXdq7knhKboyf8+XVKu8Jle2jBZzT+yQD5kSqiDZ JcGZHLB3Nq2KIbyLEHQlvoG4obGNRXTwwjxfbTyw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Reinette Chatre , Babu Moger , "Shaopeng Tan (Fujitsu)" , Shuah Khan , Sasha Levin Subject: [PATCH 5.10 074/406] selftests/resctrl: Unmount resctrl FS if child fails to run benchmark Date: Sun, 17 Sep 2023 21:08:48 +0200 Message-ID: <20230917191103.089372547@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917191101.035638219@linuxfoundation.org> References: <20230917191101.035638219@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ilpo Järvinen [ Upstream commit f99e413eb54652e2436cc56d081176bc9a34cd8d ] A child calls PARENT_EXIT() when it fails to run a benchmark to kill the parent process. PARENT_EXIT() lacks unmount for the resctrl FS and the parent won't be there to unmount it either after it gets killed. Add the resctrl FS unmount also to PARENT_EXIT(). Fixes: 591a6e8588fc ("selftests/resctrl: Add basic resctrl file system operations and data") Signed-off-by: Ilpo Järvinen Reviewed-by: Reinette Chatre Tested-by: Babu Moger Tested-by: Shaopeng Tan (Fujitsu) Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin --- tools/testing/selftests/resctrl/resctrl.h | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index 36da6136af968..c38f2d58df927 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -33,6 +33,7 @@ do { \ perror(err_msg); \ kill(ppid, SIGKILL); \ + umount_resctrlfs(); \ exit(EXIT_FAILURE); \ } while (0) -- 2.40.1