23 Feb
2019
23 Feb
'19
9:14 p.m.
On 2/22/19 6:06 PM, John Snow wrote:
Currently, the enabled predicate means something like: "the QAPI status of the bitmap is ACTIVE." After this patch, it should mean exclusively: "This bitmap is recording guest writes, and is allowed to do so."
In many places, this is how this predicate was already used. Internal usages of the bitmap QPI can call user_locked to find out if the bitmap is in use by an operation.
To accommodate this, modify the create_successor routine to now explicitly disable the parent bitmap at creation time.
Reviewed-by: Eric Blake <eblake@redhat.com> -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org