tree 1aea529349773a4d24d6fb65c09e1f7897d11ce4
parent aaf2a859b6758ad9b3a6fa242b0453bd7d8b7615
author Hannes Reinecke <hare@suse.de> 1414584015 +0100
committer Paolo Bonzini <pbonzini@redhat.com> 1414751341 +0100

megasas: Rework frame queueing algorithm

Windows requires the frames to be unmapped, otherwise we run
into a race condition where the updated frame data is not
visible to the guest.
With that we can simplify the queue algorithm and use a bitmap
for tracking free frames.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>