From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 18 Mar 2008 03:58:15 +0000 (-0500)
Subject: virtio: handle > 2 billion page balloon targets
X-Git-Tag: v2.6.25-rc7~114^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdc1681cdf1ab6a65fa935a2b3f8fc63b20c54ea;p=pandora-kernel.git

virtio: handle > 2 billion page balloon targets

If the host asks for a huge target towards_target() can overflow, and
we up oops as we try to release more pages than we have.  The simple
fix is to use a 64-bit value.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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