tree 27d2c75ef0ce7e02fcf09d08ce20b0fe51e20362
parent 135da0b037984c0284acdf40aaf4f7f31eb5cbd0
author Christian Borntraeger <borntraeger@de.ibm.com> 1201791233 +0100
committer Rusty Russell <rusty@rustcorp.com.au> 1202129410 +1100

virtio_blk: Dont waste major numbers

Rusty,

currently virtio_blk uses one major number per device. While this works
quite well on most systems it is wasteful and will exhaust major numbers
on larger installations.

This patch allocates a major number on init and will use 16 minor numbers
for each disk. That will allow ~64k virtio_blk disks.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>