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storage: Handle failure from refreshVol

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Commit id '155ca616' added the 'refreshVol' API. In an NFS root-squash
environment it was possible that if the just created volume from XML wasn't
properly created with the right uid/gid and/or mode, then the followup
refreshVol will fail to open the volume in order to get the allocation/
capacity values. This would leave the volume still on the server and
cause a libvirtd crash because 'voldef' would be in the pool list, but
the cleanup code would free it.

(cherry picked from commit db9277a39bc364806e8d3e08a08fc128d59b7094)
This commit is contained in:
John Ferlan 2015-08-24 12:38:13 -04:00
parent 966cc92222
commit 075eb526c9
1 changed files with 5 additions and 1 deletions
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6
src/storage/storage_driver.c
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@ -1867,8 +1867,12 @@ storageVolCreateXML(virStoragePoolPtr obj,
}
if (backend->refreshVol &&
backend->refreshVol(obj->conn, pool, voldef) < 0)
backend->refreshVol(obj->conn, pool, voldef) < 0) {
storageVolDeleteInternal(volobj, backend, pool, voldef,
0, false);
voldef = NULL;
goto cleanup;
}
/* Update pool metadata ignoring the disk backend since
* it updates the pool values.