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Date: Fri, 7 May 2010 17:16:58 +0200
From: Christoph Hellwig <hch@lst.de>
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Subject: [Qemu-devel] [PATCH 0/3] cow conversion to the block API
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To: qemu-devel@nongnu.org

This series converts the cow image driver to the block API.  This fixes
a failure in qemu-iotests 012, and allows compiling it on window by
removing the dependency on mmap.  The downside is that it's possible
a lot slower for bitmap accesses, at least with the current naive
implementation.  Anyone who cares seriously enough about cow is welcome
to optimize the bitmap access.