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storage: Need to update freeExtent at delete primary partition

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Commit id '471e1c4e' only considered updating the pool if the extended
partition was removed. As it turns out removing a primary partition
would also need to update the freeExtent list otherwise the following
sequence would fail (assuming a "fresh" disk pool for /dev/sde of 500M):

$  virsh pool-info disk-pool
...
Capacity:       509.88 MiB
Allocation:     0.00 B
Available:      509.84 MiB

$ virsh vol-create-as disk-pool sde1 --capacity 300M
$ virsh vol-delete --pool disk-pool sde1
$ virsh vol-create-as disk-pool sde1 --capacity 300M
error: Failed to create vol sde1
error: internal error: no large enough free extent

$

This patch will refresh the pool, rereading the partitions, and
return
This commit is contained in:
John Ferlan 2015-03-27 11:04:22 -04:00
parent 1095230dee
commit 1ffd82bb89
1 changed files with 6 additions and 3 deletions
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9
src/storage/storage_backend_disk.c
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@ -746,10 +746,13 @@ virStorageBackendDiskDeleteVol(virConnectPtr conn,
goto cleanup;
}
/* If this was the extended partition, then all the logical partitions
* are then lost. Make it easy on ourselves and just refresh the pool
/* If this is not a logical partition, then either we've removed an
* extended partition or a primary partion - refresh the pool which
* includes resetting the [n]freeExtents data so a subsequent allocation
* might be able to use what was deleted. A logical partition is part
* of an extended partition and handled differently
*/
if (vol->source.partType == VIR_STORAGE_VOL_DISK_TYPE_EXTENDED) {
if (vol->source.partType != VIR_STORAGE_VOL_DISK_TYPE_LOGICAL) {
virStoragePoolObjClearVols(pool);
if (virStorageBackendDiskRefreshPool(conn, pool) < 0)
goto cleanup;