linux-kernel - Re: [PATCH] ubifs: allow more than one volume to be mounted

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Message-Id: <1246548890.20721.23.camel@localhost.localdomain>
Date:	Thu, 02 Jul 2009 18:34:50 +0300
From:	Artem Bityutskiy <dedekind@...radead.org>
To:	Daniel Mack <daniel@...aq.de>
Cc:	Artem Bityutskiy <dedekind1@...il.com>,
	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...ia.com>,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH] ubifs: allow more than one volume to be mounted

On Thu, 2009-07-02 at 17:27 +0200, Daniel Mack wrote:
> On Thu, Jul 02, 2009 at 06:17:45PM +0300, Artem Bityutskiy wrote:
> > Daniel Mack wrote:
> >> UBIFS uses a bdi device per volume, but does not care to hand out unique
> >> names to each of them. This causes an error when trying to mount more
> >> than one volumes.
> >>
> >> [  239.277407] kobject_add_internal failed for ubifs with -EEXIST, don't try to register things with the same name in the same directory.
> >> [  239.289618] [<c002a45c>] (unwind_backtrace+0x0/0xdc) from [<c0160628>] (kobject_add_internal+0x188/0x1b8)
> >> [  239.299445] [<c0160628>] (kobject_add_internal+0x188/0x1b8) from [<c01607d8>] (kobject_add+0x48/0x5c)
> >> [  239.308896] [<c01607d8>] (kobject_add+0x48/0x5c) from [<c019d96c>] (device_add+0xac/0x510)
> >> [  239.317392] [<c019d96c>] (device_add+0xac/0x510) from [<c019de58>] (device_create_vargs+0x70/0xa4)
> >> [  239.326589] [<c019de58>] (device_create_vargs+0x70/0xa4) from [<c0073138>] (bdi_register+0x44/0x64)
> >> [  239.335854] [<c0073138>] (bdi_register+0x44/0x64) from [<c01249f0>] (ubifs_get_sb+0x3c8/0x10cc)
> >> [  239.344769] [<c01249f0>] (ubifs_get_sb+0x3c8/0x10cc) from [<c008b054>] (vfs_kern_mount+0x50/0xa8)
> >> [  239.353867] [<c008b054>] (vfs_kern_mount+0x50/0xa8) from [<c008b0f0>] (do_kern_mount+0x34/0xd0)
> >> [  239.362799] [<c008b0f0>] (do_kern_mount+0x34/0xd0) from [<c009f7b4>] (do_mount+0x644/0x6b4)
> >> [  239.371377] [<c009f7b4>] (do_mount+0x644/0x6b4) from [<c009f8a8>] (sys_mount+0x84/0xcc)
> >> [  239.379538] [<c009f8a8>] (sys_mount+0x84/0xcc) from [<c0025e80>] (ret_fast_syscall+0x0/0x2c)
> >>
> >> Append the UBI volume and device ID to avoid that.
> >>
> >> Signed-off-by: Daniel Mack <daniel@...aq.de>
> >> Cc: Artem Bityutskiy <dedekind@...radead.org>
> >> Cc: Adrian Hunter <ext-adrian.hunter@...ia.com>
> >> Cc: linux-mtd@...ts.infradead.org
> >
> > Thanks, I'll look at this tomorrow and try to sent it to Linus
> > ASAP.
> 
> Btw - Adrian Hunter's email in MAINTAINERS seems to be outdated:
> 
> <ext-adrian.hunter@...ia.com>: host mx1.nokia.com[192.100.122.228] said:
> 550 5.1.1 <ext-adrian.hunter@...ia.com>... User unknown (in reply to RCPT TO command)

Ok, I'll fix that too, thanks. Nowadays it is: adrian.hunter@...ia.com

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

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