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Bug 1624012

Summary: allow using node-names with block-commit
Product: Red Hat Enterprise Linux 7 Reporter: Peter Krempa <pkrempa>
Component: qemu-kvm-rhevAssignee: Kevin Wolf <kwolf>
Status: CLOSED ERRATA QA Contact: Gu Nini <ngu>
Severity: high Docs Contact:
Priority: high    
Version: 7.5CC: chayang, coli, jsuchane, juzhang, kwolf, michen, mtessun, ngu, virt-maint
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: qemu-kvm-rhev-2.12.0-16.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1637970 (view as bug list) Environment:
Last Closed: 2018-11-01 11:13:16 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1637970    

Description Peter Krempa 2018-08-30 16:39:26 UTC 
Description of problem:
Referring to members of the backing chain via filename is finicky ( https://bugzilla.redhat.com/show_bug.cgi?id=1614740 ) and requires 
digging through the backing chain data returned by query-block to find the name that qemu will accept ( https://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_monitor_json.c;h=3181805f9ce79d30b9aa011e9c5859576638f52f;hb=HEAD#l4474 ).

With -blockdev we will specify node names which are meant to refer to backing chain members but block-commit does not support them as arguments.

Upstream posting:
https://lists.gnu.org/archive/html/qemu-block/2018-08/msg00331.html
Comment 3 Ademar Reis 2018-09-05 15:53:18 UTC 
Requesting blocker+ because this is a missing piece for blockdev integration, which we need in RHEL-7.6 as it's critical to layered products.
Comment 6 Miroslav Rezanina 2018-09-17 08:55:39 UTC 
Fix included in qemu-kvm-rhev-2.12.0-16.el7
Comment 9 errata-xmlrpc 2018-11-01 11:13:16 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:3443