Re: [libvirt] [PATCH 3/3] qemu: caps: Add capability for dynamic 'auto-read-only' support for files
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(a)redhat.com>
and send this patch again as part of the bigger series which will make
use of this capability.
Jirka