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conf: add data-file feature and related fields to virStorageSource

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The 'data-file' is a qcow2 feature which allows storing the actual data
outside of the qcow2 image.

Signed-off-by: Nikolai Barybin <nikolai.barybin@virtuozzo.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Nikolai Barybin 2024-11-20 18:48:36 +03:00 committed by Peter Krempa
parent 2cb6cb05d4
commit 64627d5645
2 changed files with 14 additions and 0 deletions
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10
src/conf/storage_source_conf.c
View File

@ -829,6 +829,7 @@ virStorageSourceCopy(const virStorageSource *src,
def->relPath = g_strdup(src->relPath);
def->backingStoreRaw = g_strdup(src->backingStoreRaw);
def->backingStoreRawFormat = src->backingStoreRawFormat;
def->dataFileRaw = g_strdup(src->dataFileRaw);
def->snapshot = g_strdup(src->snapshot);
def->configFile = g_strdup(src->configFile);
def->nodenameformat = g_strdup(src->nodenameformat);
@ -894,6 +895,12 @@ virStorageSourceCopy(const virStorageSource *src,
return NULL;
}
if (src->dataFileStore) {
if (!(def->dataFileStore = virStorageSourceCopy(src->dataFileStore,
false)))
return NULL;
}
if (src->fdtuple)
def->fdtuple = g_object_ref(src->fdtuple);
@ -1174,6 +1181,9 @@ virStorageSourceClear(virStorageSource *def)
VIR_FREE(def->nodenamestorage);
VIR_FREE(def->nodenameformat);
VIR_FREE(def->dataFileRaw);
g_clear_pointer(&def->dataFileStore, virObjectUnref);
virStorageSourceBackingStoreClear(def);
VIR_FREE(def->tlsAlias);

4
src/conf/storage_source_conf.h
View File

@ -359,6 +359,9 @@ struct _virStorageSource {
/* backing chain of the storage source */
virStorageSource *backingStore;
/* qcow2 data file source */
virStorageSource *dataFileStore;
/* metadata for storage driver access to remote and local volumes */
void *drv;
@ -369,6 +372,7 @@ struct _virStorageSource {
/* Name of the child backing store recorded in metadata of the
* current file. */
char *backingStoreRaw;
char *dataFileRaw;
virStorageFileFormat backingStoreRawFormat;
/* metadata that allows identifying given storage source */