Martin Betak has posted comments on this change.

Change subject: backend: Add HostDev passthrough support #3
......................................................................


Patch Set 20:

(2 comments)

https://gerrit.ovirt.org/#/c/37619/20/backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/RunVmCommand.java
File 
backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/RunVmCommand.java:

Line 239:             try {
Line 240:                 if (connectLunDisks(getVdsId())) {
Line 241:                     status = createVm();
Line 242:                     
ExecutionHandler.setAsyncJob(getExecutionContext(), true);
Line 243:                     markHostDevicesAsUsed();
> in case there is no exception, we dont call processDown because the vm wasn
Ok, in that case this should be safe (see my comment below)
Line 244:                 }
Line 245:             } catch(VdcBLLException e) {
Line 246:                 // if the returned exception is such that shoudn't 
trigger the re-run process,
Line 247:                 // re-throw it. otherwise, continue (the vm will be 
down and a re-run will be triggered)


Line 314:     public void rerun() {
Line 315:         setFlow(null);
Line 316:         // re-acquire the host device lock (if needed) as the 
canDoAction already expects this
Line 317:         // lock to be held (originally acquired in 'postConstruct'
Line 318:         acquireHostDevicesLock();
> is it ok that the device already marked as used by this vm?
yes, the host device reservation is idempotent exactly for this purpose.
Line 319:         super.rerun();
Line 320:     }
Line 321: 
Line 322:     private RunVmFlow setFlow(RunVmFlow flow) {


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Gerrit-MessageType: comment
Gerrit-Change-Id: I93c746cdda71678f7840d37683b890080a74341d
Gerrit-PatchSet: 20
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Martin Betak <[email protected]>
Gerrit-Reviewer: Alona Kaplan <[email protected]>
Gerrit-Reviewer: Arik Hadas <[email protected]>
Gerrit-Reviewer: Martin Betak <[email protected]>
Gerrit-Reviewer: Martin Polednik <[email protected]>
Gerrit-Reviewer: Moti Asayag <[email protected]>
Gerrit-Reviewer: Omer Frenkel <[email protected]>
Gerrit-Reviewer: Shahar Havivi <[email protected]>
Gerrit-Reviewer: [email protected]
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-HasComments: Yes
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