64bit offsets for block devices ?

From: Reto Baettig (baettig@scs.ch)
Date: Wed Dec 06 2000 - 09:50:15 EST


Imagine we have a virtual disk which provides a 64bit (sparse) address
room. Unfortunately we can not use it as a block device because in a lot
of places (including buffer_head structure), we're using a long or even
an int for the block number.

Is there any way of getting a standardized way of doing I/O to a block
device which could handle 64bit addresses for the block number?

Don't you think that we will run into problems anyway because soon there
will be raid systems with a couple of Terrabytes of space to waste for
mp3's ;-)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

This archive was generated by hypermail 2b29 : Thu Dec 07 2000 - 21:00:16 EST