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storage: Add --shrink to qemu-img command when shrinking vol

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1613746

When shrinking the capacity of a qcow2 or luks volume using
the qemu-img program, the --shrink qualifier must be added.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
John Ferlan 2018-08-17 15:53:29 -04:00
parent b4833917f1
commit b04d1b6a35
1 changed files with 4 additions and 4 deletions
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8
src/storage/storage_util.c
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@ -2294,12 +2294,12 @@ storageBackendResizeQemuImg(virStoragePoolObjPtr pool,
* a multiple of 512 */ * a multiple of 512 */
capacity = VIR_ROUND_UP(capacity, 512); capacity = VIR_ROUND_UP(capacity, 512);
cmd = virCommandNew(img_tool); cmd = virCommandNewArgList(img_tool, "resize", NULL);
if (capacity < vol->target.capacity)
virCommandAddArg(cmd, "--shrink");
if (!vol->target.encryption) { if (!vol->target.encryption) {
virCommandAddArgList(cmd, "resize", vol->target.path, NULL); virCommandAddArg(cmd, vol->target.path);
} else { } else {
virCommandAddArg(cmd, "resize");
if (storageBackendCreateQemuImgSecretObject(cmd, secretPath, if (storageBackendCreateQemuImgSecretObject(cmd, secretPath,
secretAlias) < 0) secretAlias) < 0)
goto cleanup; goto cleanup;