From: Shaya Potter <spotter@cs.columbia.edu>
To: Andrew Morton <akpm@osdl.org>
Cc: "Josef 'Jeff' Sipek" <jsipek@cs.sunysb.edu>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
hch@infradead.org, viro@ftp.linux.org.uk, torvalds@osdl.org,
mhalcrow@us.ibm.com, David Quigley <dquigley@fsl.cs.sunysb.edu>,
Erez Zadok <ezk@cs.sunysb.edu>
Subject: Re: [PATCH 01/24] Unionfs: Documentation
Date: Mon, 8 Jan 2007 14:43:39 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.63.0701081442230.19059@razor.cs.columbia.edu> (raw)
In-Reply-To: <20070108111852.ee156a90.akpm@osdl.org>
On Mon, 8 Jan 2007, Andrew Morton wrote:
> On Sun, 7 Jan 2007 23:12:53 -0500
> "Josef 'Jeff' Sipek" <jsipek@cs.sunysb.edu> wrote:
>
>> +Modifying a Unionfs branch directly, while the union is mounted, is
>> +currently unsupported.
>
> Does this mean that if I have /a/b/ and /c/d/ unionised under /mnt/union, I
> am not allowed to alter anything under /a/b/ and /c/d/? That I may only
> alter stuff under /mnt/union?
>
> If so, that sounds like a significant limitation.
haven't we been through this? It's the same thing as modifying a block
device while a file system is using it. Now, when unionfs gets confused,
it shouldn't oops, but would one expect ext3 to allow one to modify its
backing store while its using it?
next prev parent reply other threads:[~2007-01-08 20:09 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-08 4:12 [PATCH 00/24] Unionfs, try #4 Josef 'Jeff' Sipek
2007-01-08 4:12 ` [PATCH 01/24] Unionfs: Documentation Josef 'Jeff' Sipek
2007-01-08 19:18 ` Andrew Morton
2007-01-08 19:43 ` Shaya Potter [this message]
2007-01-08 20:24 ` Jan Engelhardt
2007-01-08 21:32 ` Shaya Potter
2007-01-08 21:19 ` Andrew Morton
2007-01-08 21:30 ` Shaya Potter
2007-01-08 22:02 ` Andrew Morton
2007-01-08 22:21 ` Shaya Potter
2007-01-08 23:34 ` Jan Engelhardt
2007-01-08 23:37 ` Josef Sipek
2007-01-09 0:03 ` Erez Zadok
2007-01-09 9:53 ` Christoph Hellwig
2007-01-09 10:43 ` Josef Sipek
2007-01-09 10:47 ` Christoph Hellwig
2007-01-09 10:48 ` Christoph Hellwig
2007-01-09 17:28 ` Erez Zadok
2007-01-08 23:25 ` Josef Sipek
2007-01-09 9:49 ` Christoph Hellwig
2007-01-09 10:36 ` Josef Sipek
2007-01-08 20:51 ` Erez Zadok
2007-01-08 21:53 ` Jan Engelhardt
2007-01-08 23:00 ` Michael Halcrow
2007-01-08 23:45 ` Josef Sipek
2007-01-09 0:19 ` Giuseppe Bilotta
2007-01-09 0:33 ` Josef Sipek
2007-01-09 1:26 ` Jan Engelhardt
2007-01-09 1:50 ` Shaya Potter
2007-01-09 12:26 ` Jan Kara
2007-01-09 16:39 ` Trond Myklebust
2007-01-09 17:04 ` Jan Kara
2007-01-09 17:07 ` Trond Myklebust
2007-01-09 17:34 ` Erez Zadok
2007-01-10 16:12 ` Jan Kara
2007-01-10 20:15 ` Erez Zadok
2007-01-10 20:24 ` Shaya Potter
2007-01-10 21:27 ` Jan Kara
2007-01-10 23:20 ` Josef Sipek
2007-01-10 23:29 ` Shaya Potter
2007-01-11 8:54 ` Jan Kara
2007-01-08 23:15 ` Josef Sipek
2007-01-09 12:15 ` Jan Kara
2007-01-09 16:30 ` Trond Myklebust
2007-01-09 16:41 ` Shaya Potter
2007-01-09 17:03 ` Trond Myklebust
2007-01-09 17:11 ` Shaya Potter
2007-01-09 17:16 ` Erez Zadok
2007-01-09 17:16 ` Jan Kara
2007-01-09 22:02 ` Jan Engelhardt
2007-01-11 14:29 ` unionfs unusable on multiuser systems (was Re: [PATCH 01/24] Unionfs: Documentation) Pavel Machek
2007-01-12 14:17 ` Shaya Potter
2007-01-08 4:12 ` [PATCH 02/24] lookup_one_len_nd - lookup_one_len with nameidata argument Josef 'Jeff' Sipek
2007-01-08 4:12 ` [PATCH 03/24] Unionfs: Branch management functionality Josef 'Jeff' Sipek
2007-01-08 4:12 ` [PATCH 04/24] Unionfs: Common file operations Josef 'Jeff' Sipek
2007-01-08 21:28 ` Andrew Morton
2007-01-08 4:12 ` [PATCH 05/24] Unionfs: Copyup Functionality Josef 'Jeff' Sipek
2007-01-08 21:29 ` Andrew Morton
2007-01-08 22:00 ` Shaya Potter
2007-01-08 4:12 ` [PATCH 06/24] Unionfs: Dentry operations Josef 'Jeff' Sipek
2007-01-08 21:29 ` Andrew Morton
2007-01-08 4:12 ` [PATCH 07/24] Unionfs: File operations Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 08/24] Unionfs: Directory file operations Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 09/24] Unionfs: Directory manipulation helper functions Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 10/24] Unionfs: Inode operations Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 11/24] Unionfs: Lookup helper functions Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 12/24] Unionfs: Main module functions Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 13/24] Unionfs: Readdir state Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 14/24] Unionfs: Rename Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 15/24] Unionfs: Privileged operations workqueue Josef 'Jeff' Sipek
2007-01-08 21:27 ` Andrew Morton
2007-01-08 4:13 ` [PATCH 16/24] Unionfs: Handling of stale inodes Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 17/24] Unionfs: Miscellaneous helper functions Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 18/24] Unionfs: Superblock operations Josef 'Jeff' Sipek
2007-01-08 21:29 ` Andrew Morton
2007-01-08 4:13 ` [PATCH 19/24] Unionfs: Helper macros/inlines Josef 'Jeff' Sipek
2007-01-08 21:28 ` Andrew Morton
2007-01-08 4:13 ` [PATCH 20/24] Unionfs: Internal include file Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 21/24] Unionfs: Include file Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 22/24] Unionfs: Unlink Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 23/24] Unionfs: Kconfig and Makefile Josef 'Jeff' Sipek
2007-01-08 4:13 ` [PATCH 24/24] Unionfs: Extended Attributes support Josef 'Jeff' Sipek
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