tree 6e1cd06c0ddf480d1c8ecb47c29411f611d0fc23
parent 9991923b262dc35f6dd8393ab4853edd7fc3724f
author Stefan Hajnoczi <stefanha@redhat.com> 1362405751 +0100
committer Stefan Hajnoczi <stefanha@redhat.com> 1363360070 +0100

qcow2: flush refcount cache correctly in qcow2_write_snapshots()

Since qcow2 metadata is cached we need to flush the caches, not just the
underlying file.  Use bdrv_flush(bs) instead of bdrv_flush(bs->file).

Also add the error return path when bdrv_flush() fails and move the
flush after checking for qcow2_alloc_clusters() failure so that the
qcow2_alloc_clusters() error return value takes precedence.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>