From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Thu, 31 Jan 2008 14:53:53 +0000 (+0100)
Subject: virtio_blk: Dont waste major numbers
X-Git-Tag: v2.6.25-rc1~1058^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f3bf19c6e8164b441faaee476e734b4f612a78d;p=pandora-kernel.git

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>
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