Re: [libvirt] [PATCH v2 2/3] storage: allow metadata preallocation for qcow2 images

Metadata preallocation is supported both for creating new images or converting existing ones. Bug: https://bugzilla.redhat.com/show_bug.cgi?id=684793 --- src/storage/storage_backend.c | 46 ++++++++++++++++++++++++++++------------ 1 files changed, 32 insertions(+), 14 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 41a19a1..bb20f88 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -670,8 +670,11 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, virCommandPtr cmd = NULL; bool do_encryption = (vol->target.encryption != NULL); unsigned long long int size_arg; + bool preallocate = false; - virCheckFlags(0, -1); + virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA, -1); + + preallocate = flags & VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;

const char *type = virStorageFileFormatTypeToString(vol->target.format); const char *backingType = vol->backingStore.path ?