From: Marcos Mello Subject: Kernel does not respect tune2fs -E mount_opts=foo Date: Tue, 23 Aug 2016 09:57:07 -0300 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 To: linux-ext4@vger.kernel.org Return-path: Received: from mail-yw0-f175.google.com ([209.85.161.175]:35527 "EHLO mail-yw0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757082AbcHWNEr (ORCPT ); Tue, 23 Aug 2016 09:04:47 -0400 Received: by mail-yw0-f175.google.com with SMTP id j12so71296032ywb.2 for ; Tue, 23 Aug 2016 06:04:47 -0700 (PDT) Sender: linux-ext4-owner@vger.kernel.org List-ID: e2fsprogs 1.43.1. Kernel 4.7.1 with CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y CONFIG_EXT4_USE_FOR_EXT2=y Steps to reproduce the issue: # mkfs.ext4 -q /dev/sda2 # tune2fs -E mount_opts="noatime" /dev/sda2 tune2fs 1.43.1 (08-Jun-2016) Setting extended default mount options to 'noatime' # tune2fs -l /dev/sda2 | grep -i 'mount options' Default mount options: user_xattr acl Mount options: noatime # mount /dev/sda2 /mnt # findmnt /mnt TARGET SOURCE FSTYPE OPTIONS /mnt /dev/sda2 ext4 rw,relatime,data=ordered ^^^^^^^^ # touch /mnt/aaa # stat /mnt/aaa File: '/mnt/aaa' Size: 0 Blocks: 0 IO Block: 4096 regular empty file Device: 802h/2050d Inode: 12 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2016-08-23 08:14:10.056525341 -0300 Modify: 2016-08-23 08:14:10.056525341 -0300 Change: 2016-08-23 08:14:10.056525341 -0300 Birth: - # cat /mnt/aaa # stat /mnt/aaa File: '/mnt/aaa' Size: 0 Blocks: 0 IO Block: 4096 regular empty file Device: 802h/2050d Inode: 12 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2016-08-23 08:19:27.081474536 -0300 Modify: 2016-08-23 08:14:10.056525341 -0300 Change: 2016-08-23 08:14:10.056525341 -0300 Birth: - Other options like noacl, nouser_xattr, are ignored too. This filesystem is not listed in fstab. Marcos