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    SubjectRe: [PATCH] ubifs: allow more than one volume to be mounted
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    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@caiaq.de>
    > >> Cc: Artem Bityutskiy <dedekind@infradead.org>
    > >> Cc: Adrian Hunter <ext-adrian.hunter@nokia.com>
    > >> Cc: linux-mtd@lists.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 Btw - Adrian Hunter's email in MAINTAINERS seems to be outdated: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@nokia.com>: host mx1.nokia.com[192.100.122.228] said:
    > 550 5.1.1 <ext-adrian.hunter@nokia.com>... User unknown (in reply to RCPT TO command)

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

    --
    Best regards,
    Artem Bityutskiy (Битюцкий Артём)

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