From: Karel Zak <kzak@redhat.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: zippel@linux-m68k.org, akpm@linux-foundation.org,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
sfrench@us.ibm.com, lachlan@sgi.com, jsipek@cs.sunysb.edu,
rmk@arm.linux.org.uk, dhowells@redhat.com, raven@themaw.net,
rathamahata@php4.ru, kkeil@suse.de, hpa@zytor.com, tytso@mit.edu,
hirofumi@mail.parknet.co.jp, jdike@addtoit.com,
mikulas@artax.karlin.mff.cuni.cz, wli@holomorphy.com,
shaggy@austin.ibm.com, vandrove@vc.cvut.cz,
Trond.Myklebust@netapp.com, jeffm@suse.com, paulus@samba.org,
hugh@veritas.com, gorcunov@gmail.com, gregkh@suse.de
Subject: Re: [patch 01/26] mount options: add documentation
Date: Wed, 30 Jan 2008 15:42:04 +0100 [thread overview]
Message-ID: <20080130144204.GZ6922@petra.dvoda.cz> (raw)
In-Reply-To: <E1JK8wJ-0007aA-Tt@pomaz-ex.szeredi.hu>
On Wed, Jan 30, 2008 at 10:09:03AM +0100, Miklos Szeredi wrote:
> > - loop: how is the connection between file and loop device maintained?
>
> We also discussed this with Karel, maybe it didn't make it onto lkml.
>
> The proposed solution was to store the "loop" flag separately in a
> file under /var. It could just be an empty file for each such loop
> device:
>
> /var/lib/mount/loops/loop0
>
> This file is created by mount(8) if the '-oloop' option is given. And
> umount(8) automatically tears down the loop device if it finds this
> file.
It seems we needn't this solution. There is loop auto-destruction
patch in -mm.
Kernel part:
http://marc.info/?l=linux-kernel&m=119361296818388&w=2
mount(8) part:
http://marc.info/?l=util-linux-ng&m=119362955431694&w=2
So, with this patch mount(8) needn't to maintain info about loops and
umount(8) doesn't need to call LOOP_CLR_FD ioctl, because umount(2)
is enough.
Karel
--
Karel Zak <kzak@redhat.com>
next prev parent reply other threads:[~2008-01-30 14:44 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-24 19:33 [patch 00/26] mount options: fix filesystem's ->show_options Miklos Szeredi
2008-01-24 19:33 ` [patch 01/26] mount options: add documentation Miklos Szeredi
2008-01-25 0:24 ` Erez Zadok
2008-01-25 7:56 ` David Chinner
2008-01-25 10:02 ` Miklos Szeredi
2008-01-30 1:54 ` Roman Zippel
2008-01-30 9:09 ` Miklos Szeredi
2008-01-30 14:42 ` Karel Zak [this message]
2008-01-31 17:42 ` Miklos Szeredi
2008-02-08 19:20 ` Roman Zippel
2008-02-08 20:23 ` Miklos Szeredi
2008-01-24 19:33 ` [patch 02/26] mount options: add generic_show_options() Miklos Szeredi
2008-01-24 19:33 ` [patch 03/26] mount options: fix adfs Miklos Szeredi
2008-01-24 20:05 ` Russell King
2008-01-24 19:33 ` [patch 04/26] mount options: fix affs Miklos Szeredi
2008-01-24 19:33 ` [patch 05/26] mount options: fix afs Miklos Szeredi
2008-01-24 19:33 ` [patch 06/26] mount options: fix autofs4 Miklos Szeredi
2008-01-25 5:13 ` Ian Kent
2008-01-24 19:33 ` [patch 07/26] mount options: fix autofs Miklos Szeredi
2008-01-24 19:46 ` H. Peter Anvin
2008-01-24 19:33 ` [patch 08/26] mount options: fix befs Miklos Szeredi
2008-01-24 19:33 ` [patch 09/26] mount options: fix capifs Miklos Szeredi
2008-01-25 10:18 ` Karsten Keil
2008-01-24 19:33 ` [patch 10/26] mount options: fix devpts Miklos Szeredi
2008-01-24 19:46 ` H. Peter Anvin
2008-01-25 9:24 ` Miklos Szeredi
2008-01-24 19:33 ` [patch 11/26] mount options: fix ext2 Miklos Szeredi
2008-01-25 14:34 ` Jan Kara
2008-01-24 19:33 ` [patch 12/26] mount options: fix ext4 Miklos Szeredi
2008-01-25 6:41 ` Andreas Dilger
2008-01-25 14:37 ` Jan Kara
2008-01-25 17:35 ` Mingming Cao
2008-01-24 19:33 ` [patch 13/26] mount options: fix fat Miklos Szeredi
2008-01-24 19:33 ` [patch 14/26] mount options: fix fuse Miklos Szeredi
2008-01-24 19:33 ` [patch 15/26] mount options: fix hostfs Miklos Szeredi
2008-01-24 19:33 ` [patch 16/26] mount options: fix hpfs Miklos Szeredi
2008-01-24 19:33 ` [patch 17/26] mount options: fix hugetlbfs Miklos Szeredi
2008-01-24 19:33 ` [patch 18/26] mount options: fix isofs Miklos Szeredi
2008-01-25 14:42 ` Jan Kara
2008-01-24 19:34 ` [patch 19/26] mount options: fix jfs Miklos Szeredi
2008-01-24 21:15 ` Dave Kleikamp
2008-01-24 21:57 ` Andrew Morton
2008-01-24 22:17 ` Dave Kleikamp
2008-01-24 19:34 ` [patch 20/26] mount options: fix ncpfs Miklos Szeredi
2008-01-24 19:34 ` [patch 21/26] mount options: partially fix nfs Miklos Szeredi
2008-01-24 20:49 ` Chuck Lever
2008-01-25 9:39 ` Miklos Szeredi
2008-01-25 17:19 ` Chuck Lever
2008-01-28 11:34 ` Miklos Szeredi
2008-01-28 16:22 ` Chuck Lever
2008-01-24 20:53 ` Trond Myklebust
2008-01-25 9:43 ` Miklos Szeredi
2008-01-24 19:34 ` [patch 22/26] mount options: fix reiserfs Miklos Szeredi
2008-01-24 19:34 ` [patch 23/26] mount options: fix spufs Miklos Szeredi
2008-01-24 19:34 ` [patch 24/26] mount options: fix tmpfs Miklos Szeredi
2008-01-28 6:09 ` Hugh Dickins
2008-01-28 11:40 ` Miklos Szeredi
2008-01-29 13:28 ` Hugh Dickins
2008-01-24 19:34 ` [patch 25/26] mount options: fix udf Miklos Szeredi
2008-01-24 19:51 ` Cyrill Gorcunov
2008-01-24 20:20 ` Cyrill Gorcunov
2008-01-25 9:29 ` Miklos Szeredi
2008-01-25 10:57 ` Cyrill Gorcunov
2008-01-25 13:41 ` Cyrill Gorcunov
2008-01-25 15:27 ` Jan Kara
2008-01-25 15:50 ` Miklos Szeredi
2008-01-25 15:57 ` Cyrill Gorcunov
2008-01-25 16:07 ` Jan Kara
2008-01-25 16:10 ` Miklos Szeredi
2008-01-24 20:40 ` Cyrill Gorcunov
2008-01-25 15:30 ` Jan Kara
2008-01-25 15:56 ` Miklos Szeredi
2008-01-25 16:04 ` Jan Kara
2008-01-24 19:34 ` [patch 26/26] mount options: fix usbfs Miklos Szeredi
2008-01-24 22:01 ` Greg KH
2008-01-25 9:54 ` Miklos Szeredi
2008-01-27 6:01 ` [patch 00/26] mount options: fix filesystem's ->show_options Andrew Morton
2008-01-28 11:36 ` Miklos Szeredi
2008-01-29 0:19 ` [patch 05/26] mount options: fix afs David Howells
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