[GEDI] [PATCH v2 01/11] block: Expand block status mode from bool to enum

[Eric Blake]

On Fri, Apr 18, 2025 at 02:02:20PM -0500, Eric Blake wrote:
> > I have trouble understanding what the exact semantics are of these modes
> > are. Would it be possible to pass flags to block status calls that can
> > be ORed together instead: WANT_OFFSET_VALID, WANT_ZERO, etc? The flags
> > would be orthogonal and easier to understand than modes that seem to
> > combine multiple flag behaviors.
> 
> I can give that a try.  If I'm understanding the request correctly, I
> would map it as follows:
> 
> BDRV_BSTAT_PRECISE => WANT_ZERO | WANT_OFFSET_VALID | WANT_ALLOCATED
> BDRV_BSTAT_ALLOCATED => WANT_ALLOCATED
> BDRV_BSTAT_ZERO => WANT_ZERO
> 
> while still trying to keep it a mechanical conversion in this patch.

I've done that as a v2.5 reply to patch 1 and 2 of this series (the
rest of the series is unchanged except for one obvious word change in
the addition of bdrv_co_is_all_zeroes).  If we like it better, I can
resend the full series as v3.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.
Virtualization:  qemu.org | libguestfs.org