From: =?windows-1252?Q?J=F6rg-Volker_Peetz?= Subject: Re: [GIT PULL] ext4 bug fixes for 4.2-rc2 Date: Sat, 11 Jul 2015 14:07:10 +0200 Message-ID: <55A106EE.3050204@web.de> References: <20150705215312.GE8628@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE To: linux-ext4@vger.kernel.org Return-path: Received: from plane.gmane.org ([80.91.229.3]:47212 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752477AbbGKMHS (ORCPT ); Sat, 11 Jul 2015 08:07:18 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZDtYp-0001fH-Hl for linux-ext4@vger.kernel.org; Sat, 11 Jul 2015 14:07:15 +0200 Received: from p4fdf09f2.dip0.t-ipconnect.de ([79.223.9.242]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 11 Jul 2015 14:07:15 +0200 Received: from jvpeetz by p4fdf09f2.dip0.t-ipconnect.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 11 Jul 2015 14:07:15 +0200 In-Reply-To: <20150705215312.GE8628@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: Theodore Ts'o wrote on 07/05/2015 23:53: > The following changes since commit a2fd66d069d86d793e9d39d4079b96f46d= 13f237: >=20 > ext4: set lazytime on remount if MS_LAZYTIME is set by mount (2015-= 06-23 11:03:54 -0400) >=20 Hi Ted, I'm testing this patch and "ext4: set lazytime on remount if MS_LAZYTIM= E is set by mount" on top of stable kernel 4.1.2. So far no problems with lazytime enabled. Thanks for that :-) But remounting with mount version 2.26.2 sucks. As promised, lazytime c= an be enabled. But disabling it or trying to switch between atime, relatime, = and noatime doesn't work. Starting from # grep sda /proc/mounts /dev/sda2 /home ext4 rw,lazytime,noatime,nobarrier,errors=3Dremount-ro = 0 0 some strace output: # strace -o /tmp/st mount -o remount,nolazytime /home # grep ^mount /tmp/st mount("/dev/sda2", "/home", 0x2152780, MS_MGC_VAL|MS_REMOUNT|MS_NOATIME= , "nobarrier,errors=3Dremount-ro") =3D 0 # strace -o /tmp/st mount -o remount,relatime /home # grep ^mount /tmp/st mount("/dev/sda2", "/home", 0x1543780, MS_REMOUNT|MS_RELATIME|MS_NOATIM= E, "nobarrier,errors=3Dremount-ro") =3D 0 # strace -o /tmp/st mount -o remount,atime /home # grep ^mount /tmp/st mount("/dev/sda2", "/home", 0x1534780, MS_MGC_VAL|MS_REMOUNT, "nobarrier,errors=3Dremount-ro") =3D 0 The contents of /proc/mounts isn't changed by all this :-( Or should I contact the util-linux developers? --=20 Regards, J=F6rg. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html