Revision 3f5075ae
| ID | 3f5075ae63b6dc1de9428d028a4d28fc98e7fdff |
block: flush backing_hd in the right place
The backing device is only modified from bdrv_commit. So instead of
flushing it every time bdrv_flush is called for the front-end device
only flush it after we're written data to it in bdrv_commit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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