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Paolo Bonzini authored
This does the first part of the conversion to coroutines, by wrapping bdrv_write implementations to take the mutex. Drivers that implement bdrv_write rather than bdrv_co_writev can then benefit from asynchronous operation (at least if the underlying protocol supports it, which is not the case for raw-win32), even though they still operate with a bounce buffer. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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