[libvirt] [PATCH v5 4/9] virstoragefile: Always use virStorageSourceSetBackingStore to set backing store
Matthias Gatto
matthias.gatto at outscale.com
Thu Apr 23 12:41:16 UTC 2015
Replace the parts of the code where a backing store is set manually
with virStorageSourceSetBackingStore
Signed-off-by: Matthias Gatto <matthias.gatto at outscale.com>
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
src/conf/domain_conf.c | 3 ++-
src/conf/storage_conf.c | 17 ++++++++++-------
src/qemu/qemu_driver.c | 17 +++++++++++------
src/storage/storage_backend_fs.c | 7 +++++--
src/storage/storage_backend_gluster.c | 5 +++--
src/storage/storage_backend_logical.c | 9 ++++++---
src/storage/storage_driver.c | 3 ++-
src/util/virstoragefile.c | 8 +++++---
tests/virstoragetest.c | 4 ++--
9 files changed, 46 insertions(+), 27 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 2a05291..09f0bca 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -6006,7 +6006,8 @@ virDomainDiskBackingStoreParse(xmlXPathContextPtr ctxt,
virDomainDiskBackingStoreParse(ctxt, backingStore) < 0)
goto cleanup;
- src->backingStore = backingStore;
+ if (!virStorageSourceSetBackingStore(src, backingStore, 0))
+ goto cleanup;
ret = 0;
cleanup:
diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c
index 5781374..ca3a6d5 100644
--- a/src/conf/storage_conf.c
+++ b/src/conf/storage_conf.c
@@ -1254,6 +1254,7 @@ virStorageVolDefParseXML(virStoragePoolDefPtr pool,
char *capacity = NULL;
char *unit = NULL;
char *backingStore = NULL;
+ virStorageSourcePtr backingStorePtr;
xmlNodePtr node;
xmlNodePtr *nodes = NULL;
size_t i;
@@ -1290,20 +1291,22 @@ virStorageVolDefParseXML(virStoragePoolDefPtr pool,
}
if ((backingStore = virXPathString("string(./backingStore/path)", ctxt))) {
- if (VIR_ALLOC(ret->target.backingStore) < 0)
+ if (VIR_ALLOC(backingStorePtr) < 0)
goto error;
- ret->target.backingStore->path = backingStore;
+ if (!virStorageSourceSetBackingStore(&ret->target, backingStorePtr, 0))
+ goto error;
+ backingStorePtr->path = backingStore;
backingStore = NULL;
if (options->formatFromString) {
char *format = virXPathString("string(./backingStore/format/@type)", ctxt);
if (format == NULL)
- ret->target.backingStore->format = options->defaultFormat;
+ backingStorePtr->format = options->defaultFormat;
else
- ret->target.backingStore->format = (options->formatFromString)(format);
+ backingStorePtr->format = (options->formatFromString)(format);
- if (ret->target.backingStore->format < 0) {
+ if (backingStorePtr->format < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown volume format type %s"), format);
VIR_FREE(format);
@@ -1312,9 +1315,9 @@ virStorageVolDefParseXML(virStoragePoolDefPtr pool,
VIR_FREE(format);
}
- if (VIR_ALLOC(ret->target.backingStore->perms) < 0)
+ if (VIR_ALLOC(backingStorePtr->perms) < 0)
goto error;
- if (virStorageDefParsePerms(ctxt, ret->target.backingStore->perms,
+ if (virStorageDefParsePerms(ctxt, backingStorePtr->perms,
"./backingStore/permissions",
DEFAULT_VOL_PERM_MODE) < 0)
goto error;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 26be9d6..1a98601 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -14274,13 +14274,18 @@ qemuDomainSnapshotCreateSingleDiskActive(virQEMUDriverPtr driver,
/* Update vm in place to match changes. */
need_unlink = false;
- newDiskSrc->backingStore = disk->src;
- disk->src = newDiskSrc;
+ if (!virStorageSourceSetBackingStore(newDiskSrc, disk->src, 0)) {
+ ret = -1;
+ goto cleanup;
+ }
newDiskSrc = NULL;
if (persistDisk) {
- persistDiskSrc->backingStore = persistDisk->src;
- persistDisk->src = persistDiskSrc;
+ if (!virStorageSourceSetBackingStore(persistDiskSrc,
+ persistDisk->src, 0)) {
+ ret = -1;
+ goto cleanup;
+ }
persistDiskSrc = NULL;
}
@@ -14323,13 +14328,13 @@ qemuDomainSnapshotUndoSingleDiskActive(virQEMUDriverPtr driver,
/* Update vm in place to match changes. */
tmp = disk->src;
disk->src = virStorageSourceGetBackingStore(tmp, 0);
- tmp->backingStore = NULL;
+ ignore_value(virStorageSourceSetBackingStore(tmp, NULL, 0));
virStorageSourceFree(tmp);
if (persistDisk) {
tmp = persistDisk->src;
persistDisk->src = virStorageSourceGetBackingStore(tmp, 0);
- tmp->backingStore = NULL;
+ ignore_value(virStorageSourceSetBackingStore(tmp, NULL, 0));
virStorageSourceFree(tmp);
}
}
diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c
index 151af47..bab2569 100644
--- a/src/storage/storage_backend_fs.c
+++ b/src/storage/storage_backend_fs.c
@@ -97,7 +97,9 @@ virStorageBackendProbeTarget(virStorageSourcePtr target,
goto cleanup;
if (meta->backingStoreRaw) {
- if (!(target->backingStore = virStorageSourceNewFromBacking(meta)))
+ if (!virStorageSourceSetBackingStore(target,
+ virStorageSourceNewFromBacking(meta),
+ 0))
goto cleanup;
backingStore = virStorageSourceGetBackingStore(target, 0);
@@ -112,7 +114,8 @@ virStorageBackendProbeTarget(virStorageSourcePtr target,
if (VIR_ALLOC(backingStore) < 0)
goto cleanup;
- target->backingStore = backingStore;
+ if (!virStorageSourceSetBackingStore(target, backingStore, 0))
+ goto cleanup;
backingStore->type = VIR_STORAGE_TYPE_NETWORK;
backingStore->path = meta->backingStoreRaw;
meta->backingStoreRaw = NULL;
diff --git a/src/storage/storage_backend_gluster.c b/src/storage/storage_backend_gluster.c
index 9bddb3b..f0a3b9b 100644
--- a/src/storage/storage_backend_gluster.c
+++ b/src/storage/storage_backend_gluster.c
@@ -301,9 +301,10 @@ virStorageBackendGlusterRefreshVol(virStorageBackendGlusterStatePtr state,
goto cleanup;
if (meta->backingStoreRaw) {
- if (VIR_ALLOC(vol->target.backingStore) < 0)
+ if (VIR_ALLOC(backingStore) < 0)
goto cleanup;
- backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
+ if (!virStorageSourceSetBackingStore(&vol->target, backingStore, 0))
+ goto error;
backingStore->path = meta->backingStoreRaw;
diff --git a/src/storage/storage_backend_logical.c b/src/storage/storage_backend_logical.c
index 27fdc64..16d508e 100644
--- a/src/storage/storage_backend_logical.c
+++ b/src/storage/storage_backend_logical.c
@@ -88,6 +88,7 @@ virStorageBackendLogicalMakeVol(char **const groups,
size_t i;
int err, nextents, nvars, ret = -1;
const char *attrs = groups[9];
+ virStorageSourcePtr backingStore;
/* Skip inactive volume */
if (attrs[4] != 'a')
@@ -148,14 +149,16 @@ virStorageBackendLogicalMakeVol(char **const groups,
* lv is created with "--virtualsize").
*/
if (groups[1] && !STREQ(groups[1], "") && (groups[1][0] != '[')) {
- if (VIR_ALLOC(vol->target.backingStore) < 0)
+ if (VIR_ALLOC(backingStore) < 0)
goto cleanup;
- if (virAsprintf(&virStorageSourceGetBackingStore(&vol->target, 0)->path, "%s/%s",
+ if (!virStorageSourceSetBackingStore(&vol->target, backingStore, 0))
+ goto cleanup;
+ if (virAsprintf(&backingStore->path, "%s/%s",
pool->def->target.path, groups[1]) < 0)
goto cleanup;
- virStorageSourceGetBackingStore(&vol->target, 0)->format = VIR_STORAGE_POOL_LOGICAL_LVM2;
+ backingStore->format = VIR_STORAGE_POOL_LOGICAL_LVM2;
}
if (!vol->key && VIR_STRDUP(vol->key, groups[2]) < 0)
diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
index 306d98e..cae7484 100644
--- a/src/storage/storage_driver.c
+++ b/src/storage/storage_driver.c
@@ -3044,7 +3044,8 @@ virStorageFileGetMetadataRecurse(virStorageSourcePtr src,
goto cleanup;
}
- src->backingStore = backingStore;
+ if (!virStorageSourceSetBackingStore(src, backingStore, 0))
+ goto cleanup;
backingStore = NULL;
ret = 0;
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index d69f49d..234a72b 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -1902,8 +1902,10 @@ virStorageSourceCopy(const virStorageSource *src,
goto error;
if (backingChain && virStorageSourceGetBackingStore(src, 0)) {
- if (!(ret->backingStore = virStorageSourceCopy(virStorageSourceGetBackingStore(src, 0),
- true)))
+ if (!virStorageSourceSetBackingStore(ret,
+ virStorageSourceCopy(virStorageSourceGetBackingStore(src, 0),
+ true),
+ 0))
goto error;
}
@@ -2044,7 +2046,7 @@ virStorageSourceBackingStoreClear(virStorageSourcePtr def)
/* recursively free backing chain */
virStorageSourceFree(virStorageSourceGetBackingStore(def, 0));
- def->backingStore = NULL;
+ virStorageSourceSetBackingStore(def, NULL, 0);
}
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index 5bd4637..58f505d 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -583,9 +583,9 @@ testPathRelativePrepare(void)
for (i = 0; i < ARRAY_CARDINALITY(backingchain); i++) {
if (i < ARRAY_CARDINALITY(backingchain) - 1)
- backingchain[i].backingStore = &backingchain[i + 1];
+ virStorageSourceSetBackingStore(&backingchain[i], &backingchain[i + 1], 0);
else
- backingchain[i].backingStore = NULL;
+ virStorageSourceSetBackingStore(&backingchain[i], NULL, 0);
backingchain[i].relPath = NULL;
}
--
2.3.5
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