Re: [libvirt] [PATCH 4/7] storage: add support for creating qcow2 images with extensions

Add -o compat= and -o lazy_refcounts options for qemu-img. --- src/storage/storage_backend.c | 36 +++++++++++++++++++++++-- tests/storagevolxml2argvdata/qcow2-1.1.argv | 1 + tests/storagevolxml2argvdata/qcow2-lazy.argv | 1 + tests/storagevolxml2argvdata/vol-qcow2-1.1.xml | 32 ++++++++++++++++++++++ tests/storagevolxml2argvdata/vol-qcow2-lazy.xml | 35 ++++++++++++++++++++++++ tests/storagevolxml2argvtest.c | 2 ++ 6 files changed, 105 insertions(+), 2 deletions(-) create mode 100644 tests/storagevolxml2argvdata/qcow2-1.1.argv create mode 100644 tests/storagevolxml2argvdata/qcow2-lazy.argv create mode 100644 tests/storagevolxml2argvdata/vol-qcow2-1.1.xml create mode 100644 tests/storagevolxml2argvdata/vol-qcow2-lazy.xml diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 0abc3f3..22cc051 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -655,9 +655,15 @@ static int virStorageBackendCreateQemuImgOpts(char **opts, const char *backingType, bool encryption, - bool preallocate) + bool preallocate, + int format, + const char *compat, + virBitmapPtr features) { virBuffer buf = VIR_BUFFER_INITIALIZER; + bool b; + int i; + if (backingType) virBufferAsprintf(&buf, "backing_fmt=%s,", backingType); if (encryption) @@ -665,6 +671,19 @@ virStorageBackendCreateQemuImgOpts(char **opts, if (preallocate) virBufferAddLit(&buf, "preallocation=metadata,"); + if (compat) + virBufferAsprintf(&buf, "compat=%s,", compat); + if (features && format == VIR_STORAGE_FILE_QCOW2) { + if (!compat) + virBufferAddLit(&buf, "compat=1.1,");