On 08.05.2015 19:21, Kevin Wolf wrote:
Currently, the block layer assumes that any block node can have only one
parent, and if it has a parent, that it inherits some options/flags from
this parent.
This is not true any more: With references used in block device
creation, a single node can be used by multiple parents, or it can be
created separately and not inherit flags from any parent.
To handle reopens correctly, a node must know from which parent it
inherited options. This patch adds the information to BlockDriverState.
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
block.c | 17 +++++++++++++++++
include/block/block_int.h | 4 ++++
2 files changed, 21 insertions(+)
Reviewed-by: Max Reitz <mre...@redhat.com>
