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qemu: skip precreation of network disks

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Commit cf54c60699 introduced the ability
to create missing storage volumes during migration. For network disks,
however, we may not necessarily be able to detect whether they already
exist -- there is no straight-forward way to map the disk to a storage
volume, and even if there were it's possible no configured storage pool
actually contains the disk.

It is better to assume the network disk exists in this case, rather than
aborting the migration completely. If the volume really is missing, QEMU
will generate an appropriate error later in the migration.

Signed-off-by: Michael Chapman <mike@very.puzzling.org>
(cherry picked from commit a1b1805155)
This commit is contained in:
Michael Chapman 2015-03-13 11:34:58 +11:00 committed by Cole Robinson
parent 93c5841e08
commit a883fb9c75
1 changed files with 5 additions and 1 deletions
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6
src/qemu/qemu_migration.c
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@ -1507,9 +1507,13 @@ qemuMigrationPrecreateDisk(virConnectPtr conn,
flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
break;
case VIR_STORAGE_TYPE_NETWORK:
VIR_DEBUG("Skipping creation of network disk '%s'",
disk->dst);
return 0;
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_DIR:
case VIR_STORAGE_TYPE_NETWORK:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,