block: Add bitmap disabled status

Enterprise / Virtualization / QEMU - John Snow [redhat.com] - 28 April 2015 08:36 UTC

Add a status indicating the enabled/disabled state of the bitmap. A bitmap is by default enabled, but you can lock the bitmap into a read-only state by setting disabled = true.

A previous version of this patch added a QMP interface for changing the state of the bitmap, but it has since been removed for now until a use case emerges where this state must be revealed to the user.

The disabled state WILL be used internally for bitmap migration and bitmap persistence.

b8e6fb7 block: Add bitmap disabled status
block.c | 25 +++++++++++++++++++++++++
include/block/block.h | 3 +++
2 files changed, 28 insertions(+)

Upstream: git.qemu.org

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