23.02.2019 3:06, John Snow wrote:
> Instead of implying a user_locked/busy status, make it explicit.
> Now, bitmaps in use by migration, NBD or backup operations
> are all treated the same way with the same code paths.
>
> Signed-off-by: John Snow
> Reviewed-by: Eric Blake
hmm, you forget my
23.02.2019 3:06, John Snow wrote:
> Check that the bitmap is not in use prior to it checking if it is
> not enabled/recording guest writes. The bitmap being busy was likely
> at the behest of the user, so this error has a greater chance of being
> understood by the user.
>
> Signed-off-by: John
23.02.2019 3:06, 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
about subject: shouldn't it be "against disabled bit" instead?
23.02.2019 3:06, John Snow wrote:
> bdrv_set_dirty_bitmap and bdrv_reset_dirty_bitmap are only used as an
> internal API by the mirror and migration areas of our code. These
> calls modify the bitmap, but do so at the behest of QEMU
23.02.2019 3:06, John Snow wrote:
> "Frozen" was a good description a long time ago, but it isn't adequate now.
> Rename the frozen predicate to has_successor to make the semantics of the
> predicate more clear to outside callers.
>
> In the process, remove some calls to frozen() that no longer
23.02.2019 3:06, John Snow wrote:
> The current API allows us to report a single status, which we've defined as:
>
> Frozen: has a successor, treated as qmp_locked, may or may not be enabled.
> Locked: no successor, qmp_locked. may or may not be enabled.
> Disabled: Not frozen or locked,
19.02.2019 16:18, Vladimir Sementsov-Ogievskiy wrote:
> 12.02.2019 1:02, Eric Blake wrote:
>> On 2/11/19 6:56 AM, Vladimir Sementsov-Ogievskiy wrote:
>>> Now negotiation is done in coroutine, so to take benefit of it let's
>>> use non-blocking model.
>>>
>>> Note that QIOChannel handle synchronous
