From: Peter Osterlund <petero2@telia.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] Get blockdev size right in pktcdvd after switching discs
Date: 15 Aug 2004 16:00:32 +0200 [thread overview]
Message-ID: <m3r7q8sdq7.fsf@telia.com> (raw)
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
reply other threads:[~2004-08-15 14:00 UTC|newest]
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