From patchwork Tue Oct 27 13:53:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 307241 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 C242AC4363A for ; Tue, 27 Oct 2020 17:00:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C41D21707 for ; Tue, 27 Oct 2020 17:00:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603818006; bh=rk7L/zr8SJJ4sd5md9ctIa/I+Q+AaUi+cpngVfaac7U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KboiyCCmaxmIsR8k+x2russAeBZXe3bbN9AjhGGS5uCczzM+dZvK9pKS1RiAGi1f0 SpAJDwBA705jBghbJPlWm4vz81VWhvLUJUdOjxl8vck5OvA2kPPZX3p9HLo7EZOFzb x0wUi77zYYA22A3TJmOhUwgEmLcyhitMlVkCgVws= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1814849AbgJ0RAF (ORCPT ); Tue, 27 Oct 2020 13:00:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:44400 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1793902AbgJ0PJA (ORCPT ); Tue, 27 Oct 2020 11:09:00 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E2E5D2072E; Tue, 27 Oct 2020 15:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603811339; bh=rk7L/zr8SJJ4sd5md9ctIa/I+Q+AaUi+cpngVfaac7U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TEiKXjsDaoSQXEjPAOh/7F539VAdZlD0jB6IBwJ+i8Z8saGI8f8LSfcLbaRjlyzCD GsWrC1ZWjvUBBiUxlKLdOg1QBwktSbpTqetReFs6OrL0veyzoQLZsUuywd4CgVjIez Gvc+wd150DQlOqLuDSAJOKDv17gJst28lYC8kdVo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Xiao Yang , Jan Kara , Ira Weiny , Andreas Dilger , Theodore Tso , Sasha Levin Subject: [PATCH 5.8 459/633] ext4: disallow modifying DAX inode flag if inline_data has been set Date: Tue, 27 Oct 2020 14:53:22 +0100 Message-Id: <20201027135544.253186332@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135522.655719020@linuxfoundation.org> References: <20201027135522.655719020@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Xiao Yang [ Upstream commit aa2f77920b743c44e02e2dc8474bbf8bd30007a2 ] inline_data is mutually exclusive to DAX so enabling both of them triggers the following issue: ------------------------------------------ # mkfs.ext4 -F -O inline_data /dev/pmem1 ... # mount /dev/pmem1 /mnt # echo 'test' >/mnt/file # lsattr -l /mnt/file /mnt/file Inline_Data # xfs_io -c "chattr +x" /mnt/file # xfs_io -c "lsattr -v" /mnt/file [dax] /mnt/file # umount /mnt # mount /dev/pmem1 /mnt # cat /mnt/file cat: /mnt/file: Numerical result out of range ------------------------------------------ Fixes: b383a73f2b83 ("fs/ext4: Introduce DAX inode flag") Signed-off-by: Xiao Yang Reviewed-by: Jan Kara Reviewed-by: Ira Weiny Reviewed-by: Andreas Dilger Link: https://lore.kernel.org/r/20200828084330.15776-1-yangx.jy@cn.fujitsu.com Signed-off-by: Theodore Ts'o Signed-off-by: Sasha Levin --- fs/ext4/ext4.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index ff46defc65683..dc943e714d142 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -466,7 +466,7 @@ struct flex_groups { /* Flags which are mutually exclusive to DAX */ #define EXT4_DAX_MUT_EXCL (EXT4_VERITY_FL | EXT4_ENCRYPT_FL |\ - EXT4_JOURNAL_DATA_FL) + EXT4_JOURNAL_DATA_FL | EXT4_INLINE_DATA_FL) /* Mask out flags that are inappropriate for the given type of inode. */ static inline __u32 ext4_mask_flags(umode_t mode, __u32 flags)