Change in vdsm[ovirt-3.3]: vm: Fix attribute error when accessing drive in sampling method

[Nir Soffer]

Nir Soffer has posted comments on this change.

Change subject: vm: Fix attribute error when accessing drive in sampling method
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Patch Set 1:

Note also that in the context of _highwrite, we don't care if the vmDrive has a format
or not. We care only about vmDrive when vmDrive.format == 'cow' - so any other
case is not interesting.

If the code was sane, wmDrive was None in this case, and vmDrive.format == 'cow'
was not making any unwanted noise.

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Gerrit-MessageType: comment
Gerrit-Change-Id: Ia50e8af94b9c9b54332066a3f30999ce73e7a56f
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: ovirt-3.3
Gerrit-Owner: Nir Soffer <nsoffer(a)redhat.com&gt;
Gerrit-Reviewer: Dan Kenigsberg <danken(a)redhat.com&gt;
Gerrit-Reviewer: Federico Simoncelli <fsimonce(a)redhat.com&gt;
Gerrit-Reviewer: Francesco Romani <fromani(a)redhat.com&gt;
Gerrit-Reviewer: Nir Soffer <nsoffer(a)redhat.com&gt;
Gerrit-Reviewer: Sergey Gotliv <sgotliv(a)redhat.com&gt;
Gerrit-Reviewer: Vinzenz Feenstra <vfeenstr(a)redhat.com&gt;
Gerrit-HasComments: No