From: Shirley Ma <mashirle@us.ibm.com>
Date: Fri, 29 Jan 2010 03:19:05 +0000 (+0000)
Subject: virtio: Add ability to detach unused buffers from vrings
X-Git-Tag: v2.6.34-rc1~233^2~471
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9bfbebf34eab707b065116cdc9699d25ba4252a;p=pandora-kernel.git

virtio: Add ability to detach unused buffers from vrings

There's currently no way for a virtio driver to ask for unused
buffers, so it has to keep a list itself to reclaim them at shutdown.
This is redundant, since virtio_ring stores that information.  So
add a new hook to do this.

Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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