[PATCH] Get blockdev size right in pktcdvd after switching discs
From: Peter Osterlund (petero2_at_telia.com)
Date: 08/15/04
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To: Andrew Morton <akpm@osdl.org> Date: 15 Aug 2004 16:00:32 +0200
If you do "pktsetup 0 /dev/hdd", insert a CD and write some data to
it, remove the CD and insert a DVD, the /dev/hdd block device will not
have the correct size. This leads to bogus "attempt to access beyond
end of device" errors.
This patch fixes it.
Signed-off-by: Peter Osterlund <petero2@telia.com>
--- linux-petero/drivers/block/pktcdvd.c | 2 ++ 1 files changed, 2 insertions(+) diff -puN drivers/block/pktcdvd.c~packet-capacity drivers/block/pktcdvd.c --- linux/drivers/block/pktcdvd.c~packet-capacity 2004-08-15 15:08:08.000000000 +0200 +++ linux-petero/drivers/block/pktcdvd.c 2004-08-15 15:44:18.102726968 +0200 @@ -1971,6 +1971,8 @@ static int pkt_open_dev(struct pktcdvd_d } set_capacity(pd->disk, lba << 2); + set_capacity(pd->bdev->bd_disk, lba << 2); + bd_set_size(pd->bdev, (loff_t)lba << 11); /* * The underlying block device needs to have its merge logic _ -- Peter Osterlund - petero2@telia.com http://w1.894.telia.com/~u89404340 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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