[libvirt] [PATCH 3/3] qemu: caps: Add capability for dynamic 'auto-read-only' support for files

[Jiri Denemark]

On Tue, Jun 18, 2019 at 10:37:26 +0200, Peter Krempa wrote:
> Initial implementation of 'auto-read-only' didn't reopen the backing
> files when needed. For '-blockdev' to work we need to be able to tel

s/tel/tell/

> qemu to open a file read-only and change it during blockjobs as we label
> backing chains with a sVirt label which does not allow writing. The
> dynamic auto-read-only supports this as it reopens files when writing
> is demanded.
> 
> Add a capability to detect that the posix file based backends support
> the dynamic part.
> ---
>  src/qemu/qemu_capabilities.c                     | 2 ++
>  src/qemu/qemu_capabilities.h                     | 1 +
>  tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml | 1 +
>  3 files changed, 4 insertions(+)

I agree with holding this patch until you have a user. That is, you can
record my

Reviewed-by: Jiri Denemark <jdenemar at redhat.com>

and send this patch again as part of the bigger series which will make
use of this capability.

Jirka