next-20080801: BUG in pktcdvd while mounting dvd

DISCUSSION Thomas Meyer 2 participants 2 messages Aug 3, 2008 Linux-next tree

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Thomas Meyer

author Acked-by Peter Osterlund

2008-08-03 12:18 UTC #0 lore raw

Greetings.

Please have a look at this bug report:

http://kerneloops.org/raw.php?rawid=47211

reverting commit 5b6155ee70e9c4d2ad7e6f514c8eee06e2711c3a fixes the problem

commit 5b6155ee70e9c4d2ad7e6f514c8eee06e2711c3a

Author: Alan Cox <[email protected]>
Date:   Fri Jul 4 09:29:16 2008 +0200

pktcdvd: push BKL down into driver

Push the lock_kernel down into the driver and switch to
unlocked_ioctl

[[email protected]: build fix]

Signed-off-by Alan Cox <[email protected]>

Acked-by Peter Osterlund <[email protected]>

Signed-off-by Andrew Morton <[email protected]>

Signed-off-by Jens Axboe <[email protected]>

Alan Cox

2008-08-03 15:10 UTC #1 lore raw

Quoted 8 lines · On Sun, 03 Aug 2008 14:18:04 +0200 Thomas Meyer <[email protected]> wrote:

Greetings.
Please have a look at this bug report:
http://kerneloops.org/raw.php?rawid=47211
reverting commit 5b6155ee70e9c4d2ad7e6f514c8eee06e2711c3a fixes the problem

ioctl_by_bdev is calling ioctl methods with filp = NULL which is not valid. That in turn blocks switching to unlocked_ioctl and BKL removal so ioctl_by_bdev urgently needs fixing.

Alan