Re: [PATCH for-5.0? v4 0/7] Tighten qemu-img rules on missing backing format
On 3/12/20 2:28 PM, Eric Blake wrote:
v3 was here:
https://lists.gnu.org/archive/html/qemu-devel/2020-03/msg01730.html
In v4:
- old patch 1 was reworked into new patch 1-3, with stricter rules
on which backing formats are accepted [Kevin]
- patch 4 is new: amend is handled differently from rebase [Kashyap]
- rebase to master
Eric Blake (7):
sheepdog: Add trivial backing_fmt support
vmdk: Add trivial backing_fmt support
qcow: Tolerate backing_fmt=, but warn on backing_fmt=raw
qcow2: Deprecate use of qemu-img amend to change backing file
iotests: Specify explicit backing format where sensible
block: Add support to warn on backing file change without format
qemu-img: Deprecate use of -b without -F
Is this still worth trying to get in 5.0? There were not many comments
on v4, other than a compile fix I need to squash in and Kashyap asking a
question on qemu-img convert behavior that I still need to double-check,
or at a bare minimum add iotest coverage for. But depending on the
urgency to get this in now, vs. delaying the deprecation clock for 4
more months by starting it in 5.1, determines how much effort I need to
put in getting a v5 out right now.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org