tree 780425093cc76f953a517f718550aa8febf58fd0
parent 2914caa088e3fbbdbfd73106af0cae49af1d472e
author Paolo Bonzini <pbonzini@redhat.com> 1319109383 +0200
committer Kevin Wolf <kwolf@redhat.com> 1319211254 +0200

block: take lock around bdrv_write implementations

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>