On 12/03/2015 09:35 AM, Matthias Gatto wrote:
Uniformize backing store usage by calling
virStorageSourceGetBackingStore
instead of setting backing store manually.
Signed-off-by: Matthias Gatto <matthias.gatto(a)outscale.com>
Signed-off-by: John Ferlan <jferlan(a)redhat.com>
---
src/conf/domain_conf.c | 7 ++++---
src/conf/storage_conf.c | 6 +++---
src/qemu/qemu_cgroup.c | 4 ++--
src/qemu/qemu_domain.c | 2 +-
src/qemu/qemu_driver.c | 18 +++++++++--------
src/qemu/qemu_monitor_json.c | 4 +++-
src/security/security_dac.c | 2 +-
src/security/security_selinux.c | 4 ++--
src/security/virt-aa-helper.c | 2 +-
src/storage/storage_backend.c | 22 ++++++++++++--------
src/storage/storage_backend_fs.c | 38 ++++++++++++++++++++---------------
src/storage/storage_backend_gluster.c | 8 +++++---
src/storage/storage_backend_logical.c | 12 +++++++----
src/util/virstoragefile.c | 20 +++++++++---------
tests/virstoragetest.c | 14 ++++++-------
15 files changed, 93 insertions(+), 70 deletions(-)
storage_backend_fs.c needed a slight merge with some changes I made...
There's also still a bunch of long lines. I've noted them below.
For each of them I propose adjusting the code a bit to do something like:
virStorageSourcePtr bsp;
...
bsp = virStorageSourceGetBackingStore(backingStore, 0);
then use bsp instead.
I'll add a "merge" patch to this response - it probably won't apply
cleanly since I had the merge issue to deal with first (in
storage_backend_fs.c - virStorageBackendFileSystemRefresh and call to
virStorageBackendUpdateVolTargetInfo). But I think if you update to top
of tree and then apply, a git am should work
John
I only worked on/through the first 2 patches, but can continue through
patch 5 - that'll at least get part of this series in
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index e6102a0..5b413b5 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -18625,7 +18625,7 @@ virDomainDiskBackingStoreFormat(virBufferPtr buf,
/* We currently don't output seclabels for backing chain element */
if (virDomainDiskSourceFormatInternal(buf, backingStore, 0, 0, true) < 0 ||
virDomainDiskBackingStoreFormat(buf,
- backingStore->backingStore,
+ virStorageSourceGetBackingStore(backingStore,
0),
Long line
backingStore->backingStoreRaw,
idx + 1) < 0)
return -1;
@@ -18746,7 +18746,8 @@ virDomainDiskDefFormat(virBufferPtr buf,
/* Don't format backingStore to inactive XMLs until the code for
* persistent storage of backing chains is ready. */
if (!(flags & VIR_DOMAIN_DEF_FORMAT_INACTIVE) &&
- virDomainDiskBackingStoreFormat(buf, def->src->backingStore,
+ virDomainDiskBackingStoreFormat(buf,
+ virStorageSourceGetBackingStore(def->src, 0),
Long line
def->src->backingStoreRaw, 1) < 0)
return -1;
@@ -22714,7 +22715,7 @@ virDomainDiskDefForeachPath(virDomainDiskDefPtr disk,
}
}
- for (tmp = disk->src; tmp; tmp = tmp->backingStore) {
+ for (tmp = disk->src; tmp; tmp = virStorageSourceGetBackingStore(tmp, 0)) {
int actualType = virStorageSourceGetActualType(tmp);
/* execute the callback only for local storage */
if (actualType != VIR_STORAGE_TYPE_NETWORK &&
diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c
index 9b8abea..d048e39 100644
--- a/src/conf/storage_conf.c
+++ b/src/conf/storage_conf.c
@@ -1330,7 +1330,7 @@ virStorageVolDefParseXML(virStoragePoolDefPtr pool,
if (virStorageSize(unit, capacity, &ret->target.capacity) < 0)
goto error;
} else if (!(flags & VIR_VOL_XML_PARSE_NO_CAPACITY) &&
- !((flags & VIR_VOL_XML_PARSE_OPT_CAPACITY) &&
ret->target.backingStore)) {
+ !((flags & VIR_VOL_XML_PARSE_OPT_CAPACITY) &&
virStorageSourceGetBackingStore(&ret->target, 0))) {
Really long line
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing capacity element"));
goto error;
}
@@ -1644,9 +1644,9 @@ virStorageVolDefFormat(virStoragePoolDefPtr pool,
&def->target, "target") < 0)
goto cleanup;
- if (def->target.backingStore &&
+ if (virStorageSourceGetBackingStore(&def->target, 0) &&
virStorageVolTargetDefFormat(options, &buf,
- def->target.backingStore,
+
virStorageSourceGetBackingStore(&def->target, 0),
long line
"backingStore") <
0)
goto cleanup;
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index b52ce3a..6405944 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -121,7 +121,7 @@ qemuSetupDiskCgroup(virDomainObjPtr vm,
virStorageSourcePtr next;
bool forceReadonly = false;
- for (next = disk->src; next; next = next->backingStore) {
+ for (next = disk->src; next; next = virStorageSourceGetBackingStore(next, 0)) {
long line
if (qemuSetImageCgroupInternal(vm, next, false,
forceReadonly) < 0)
return -1;
@@ -139,7 +139,7 @@ qemuTeardownDiskCgroup(virDomainObjPtr vm,
{
virStorageSourcePtr next;
- for (next = disk->src; next; next = next->backingStore) {
+ for (next = disk->src; next; next = virStorageSourceGetBackingStore(next, 0)) {
long line
if (qemuSetImageCgroup(vm, next, true) < 0)
return -1;
}
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index ed21245..28bbe3f 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3101,7 +3101,7 @@ qemuDomainDetermineDiskChain(virQEMUDriverPtr driver,
if (virStorageSourceIsEmpty(disk->src))
goto cleanup;
- if (disk->src->backingStore) {
+ if (virStorageSourceGetBackingStore(disk->src, 0)) {
if (force_probe)
virStorageSourceBackingStoreClear(disk->src);
else
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ae1d8e7..8ba7566 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -14309,13 +14309,13 @@ qemuDomainSnapshotUndoSingleDiskActive(virQEMUDriverPtr
driver,
/* Update vm in place to match changes. */
tmp = disk->src;
- disk->src = tmp->backingStore;
+ disk->src = virStorageSourceGetBackingStore(tmp, 0);
tmp->backingStore = NULL;
virStorageSourceFree(tmp);
if (persistDisk) {
tmp = persistDisk->src;
- persistDisk->src = tmp->backingStore;
+ persistDisk->src = virStorageSourceGetBackingStore(tmp, 0);
tmp->backingStore = NULL;
virStorageSourceFree(tmp);
}
@@ -16309,7 +16309,7 @@ qemuDomainBlockPullCommon(virQEMUDriverPtr driver,
goto endjob;
}
- if (virStorageFileGetRelativeBackingPath(disk->src->backingStore,
+ if
(virStorageFileGetRelativeBackingPath(virStorageSourceGetBackingStore(disk->src, 0),
long line
baseSource,
&backingPath) < 0)
goto endjob;
@@ -16662,6 +16662,7 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
virQEMUDriverConfigPtr cfg = NULL;
const char *format = NULL;
int desttype = virStorageSourceGetActualType(mirror);
+ virStorageSourcePtr backingStore;
/* Preliminaries: find the disk we are editing, sanity checks */
virCheckFlags(VIR_DOMAIN_BLOCK_COPY_SHALLOW |
@@ -16705,8 +16706,9 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
if (qemuDomainDetermineDiskChain(driver, vm, disk, false, true) < 0)
goto endjob;
+ backingStore = virStorageSourceGetBackingStore(disk->src, 0);
/* clear the _SHALLOW flag if there is only one layer */
- if (!disk->src->backingStore)
+ if (!backingStore)
flags &= ~VIR_DOMAIN_BLOCK_COPY_SHALLOW;
/* unless the user provides a pre-created file, shallow copy into a raw
@@ -17113,7 +17115,7 @@ qemuDomainBlockCommit(virDomainPtr dom,
goto endjob;
}
- if (!topSource->backingStore) {
+ if (!virStorageSourceGetBackingStore(topSource, 0)) {
virReportError(VIR_ERR_INVALID_ARG,
_("top '%s' in chain for '%s' has no backing
file"),
topSource->path, path);
@@ -17121,14 +17123,14 @@ qemuDomainBlockCommit(virDomainPtr dom,
}
if (!base && (flags & VIR_DOMAIN_BLOCK_COMMIT_SHALLOW))
- baseSource = topSource->backingStore;
+ baseSource = virStorageSourceGetBackingStore(topSource, 0);
else if (virStorageFileParseChainIndex(disk->dst, base, &baseIndex) < 0
||
!(baseSource = virStorageFileChainLookup(disk->src, topSource,
base, baseIndex, NULL)))
goto endjob;
if ((flags & VIR_DOMAIN_BLOCK_COMMIT_SHALLOW) &&
- baseSource != topSource->backingStore) {
+ baseSource != virStorageSourceGetBackingStore(topSource, 0)) {
virReportError(VIR_ERR_INVALID_ARG,
_("base '%s' is not immediately below '%s'
in chain "
"for '%s'"),
@@ -19406,7 +19408,7 @@ qemuDomainGetStatsBlock(virQEMUDriverPtr driver,
goto cleanup;
visited++;
backing_idx++;
- src = src->backingStore;
+ src = virStorageSourceGetBackingStore(src, 0);
}
}
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 86b8c7b..790d7bc 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -3785,7 +3785,9 @@ qemuMonitorJSONDiskNameLookupOne(virJSONValuePtr image,
return NULL;
if (top != target) {
backing = virJSONValueObjectGetObject(image, "backing-image");
- return qemuMonitorJSONDiskNameLookupOne(backing, top->backingStore,
+ virStorageSourcePtr backingStore =
+ virStorageSourceGetBackingStore(top, 0);
+ return qemuMonitorJSONDiskNameLookupOne(backing, backingStore,
target);
}
if (VIR_STRDUP(ret, virJSONValueObjectGetString(image, "filename")) <
0)
diff --git a/src/security/security_dac.c b/src/security/security_dac.c
index cdde34e..7fdf40f 100644
--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
@@ -454,7 +454,7 @@ virSecurityDACSetSecurityDiskLabel(virSecurityManagerPtr mgr,
{
virStorageSourcePtr next;
- for (next = disk->src; next; next = next->backingStore) {
+ for (next = disk->src; next; next = virStorageSourceGetBackingStore(next, 0)) {
long line
if (virSecurityDACSetSecurityImageLabel(mgr, def, next) <
0)
return -1;
}
diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
index b8ebdcc..5d694d8 100644
--- a/src/security/security_selinux.c
+++ b/src/security/security_selinux.c
@@ -1216,7 +1216,7 @@
virSecuritySELinuxRestoreSecurityImageLabelInt(virSecurityManagerPtr mgr,
* be tracked in domain XML, at which point labelskip should be a
* per-file attribute instead of a disk attribute. */
if (disk_seclabel && disk_seclabel->labelskip &&
- !src->backingStore)
+ !virStorageSourceGetBackingStore(src, 0))
return 0;
/* Don't restore labels on readonly/shared disks, because other VMs may
@@ -1350,7 +1350,7 @@ virSecuritySELinuxSetSecurityDiskLabel(virSecurityManagerPtr mgr,
bool first = true;
virStorageSourcePtr next;
- for (next = disk->src; next; next = next->backingStore) {
+ for (next = disk->src; next; next = virStorageSourceGetBackingStore(next, 0)) {
long line
if (virSecuritySELinuxSetSecurityImageLabelInternal(mgr,
def, next,
first) < 0)
return -1;
diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
index 5de56e5..dddde1c 100644
--- a/src/security/virt-aa-helper.c
+++ b/src/security/virt-aa-helper.c
@@ -967,7 +967,7 @@ get_files(vahControl * ctl)
/* XXX - if we knew the qemu user:group here we could send it in
* so that the open could be re-tried as that user:group.
*/
- if (!disk->src->backingStore) {
+ if (!virStorageSourceGetBackingStore(disk->src, 0)) {
bool probe = ctl->allowDiskFormatProbing;
virStorageFileGetMetadata(disk->src, -1, -1, probe, false);
}
diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
index 194736b..08ed1dd 100644
--- a/src/storage/storage_backend.c
+++ b/src/storage/storage_backend.c
@@ -940,6 +940,7 @@ virStorageBackendCreateQemuImgCmdFromVol(virConnectPtr conn,
.features = vol->target.features,
.nocow = vol->target.nocow,
};
+ virStorageSourcePtr backingStore;
virCheckFlags(VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA, NULL);
@@ -988,12 +989,13 @@ virStorageBackendCreateQemuImgCmdFromVol(virConnectPtr conn,
}
}
- if (vol->target.backingStore) {
+ backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
+ if (backingStore) {
int accessRetCode = -1;
char *absolutePath = NULL;
- info.backingFormat = vol->target.backingStore->format;
- info.backingPath = vol->target.backingStore->path;
+ info.backingFormat = backingStore->format;
+ info.backingPath = backingStore->path;
if (info.preallocate) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
@@ -1006,8 +1008,10 @@ virStorageBackendCreateQemuImgCmdFromVol(virConnectPtr conn,
* backing store, not really sure what use it serves though, and it
* may cause issues with lvm. Untested essentially.
*/
- if (inputvol && inputvol->target.backingStore &&
- STRNEQ_NULLABLE(inputvol->target.backingStore->path,
info.backingPath)) {
+ if (inputvol &&
+ virStorageSourceGetBackingStore(&inputvol->target, 0) &&
+ STRNEQ_NULLABLE(virStorageSourceGetBackingStore(&inputvol->target,
0)->path,
+ info.backingPath)) {
long line
This is also another one of those cases where using a temp variable is
going to help.
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("a different backing store cannot be
specified."));
return NULL;
@@ -1197,7 +1201,7 @@ virStorageBackendCreateQcowCreate(virConnectPtr conn
ATTRIBUTE_UNUSED,
vol->target.format);
return -1;
}
- if (vol->target.backingStore != NULL) {
+ if (virStorageSourceGetBackingStore(&vol->target, 0) != NULL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("copy-on-write image not supported with "
"qcow-create"));
@@ -1639,14 +1643,16 @@ virStorageBackendUpdateVolInfo(virStorageVolDefPtr vol,
unsigned int openflags)
{
int ret;
+ virStorageSourcePtr backingStore;
if ((ret = virStorageBackendUpdateVolTargetInfo(&vol->target,
withBlockVolFormat,
openflags)) < 0)
return ret;
- if (vol->target.backingStore &&
- (ret = virStorageBackendUpdateVolTargetInfo(vol->target.backingStore,
+ backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
+ if (backingStore &&
+ (ret = virStorageBackendUpdateVolTargetInfo(backingStore,
withBlockVolFormat,
VIR_STORAGE_VOL_OPEN_DEFAULT |
VIR_STORAGE_VOL_OPEN_NOERROR) <
0))
diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c
index 99ea394..7b05d4d 100644
--- a/src/storage/storage_backend_fs.c
+++ b/src/storage/storage_backend_fs.c
@@ -70,6 +70,7 @@ virStorageBackendProbeTarget(virStorageSourcePtr target,
int ret = -1;
int rc;
virStorageSourcePtr meta = NULL;
+ virStorageSourcePtr backingStore;
struct stat sb;
if (encryption)
@@ -99,37 +100,39 @@ virStorageBackendProbeTarget(virStorageSourcePtr target,
if (!(target->backingStore = virStorageSourceNewFromBacking(meta)))
goto cleanup;
- target->backingStore->format = backingStoreFormat;
+ backingStore = virStorageSourceGetBackingStore(target, 0);
+ backingStore->format = backingStoreFormat;
/* XXX: Remote storage doesn't play nicely with volumes backed by
* remote storage. To avoid trouble, just fake the backing store is RAW
* and put the string from the metadata as the path of the target. */
- if (!virStorageSourceIsLocalStorage(target->backingStore)) {
- virStorageSourceFree(target->backingStore);
+ if (!virStorageSourceIsLocalStorage(backingStore)) {
+ virStorageSourceFree(backingStore);
Although you cleaned up the reference Peter noted before - there's
double free problem here if the VIR_ALLOC fails. Currently backingStore
is just the local copy of target->backingStore. If we free it here,
then target->backingStore still contains the address/pointer. If we jump
to cleanup, then target->backingStore could be free'd again
Perhaps one way around this is to do the 'set' code first, but I think
at least the following would be OK after the SourceFree
target->backingStore = NULL;
- if (VIR_ALLOC(target->backingStore) < 0)
+ if (VIR_ALLOC(backingStore) < 0)
goto cleanup;
- target->backingStore->type = VIR_STORAGE_TYPE_NETWORK;
- target->backingStore->path = meta->backingStoreRaw;
+ target->backingStore = backingStore;
+ backingStore->type = VIR_STORAGE_TYPE_NETWORK;
+ backingStore->path = meta->backingStoreRaw;
meta->backingStoreRaw = NULL;
- target->backingStore->format = VIR_STORAGE_FILE_RAW;
+ backingStore->format = VIR_STORAGE_FILE_RAW;
}
- if (target->backingStore->format == VIR_STORAGE_FILE_AUTO) {
- if ((rc = virStorageFileProbeFormat(target->backingStore->path,
+ if (backingStore->format == VIR_STORAGE_FILE_AUTO) {
+ if ((rc = virStorageFileProbeFormat(backingStore->path,
-1, -1)) < 0) {
/* If the backing file is currently unavailable or is
* accessed via remote protocol only log an error, fake the
* format as RAW and continue. Returning -1 here would
* disable the whole storage pool, making it unavailable for
* even maintenance. */
- target->backingStore->format = VIR_STORAGE_FILE_RAW;
+ backingStore->format = VIR_STORAGE_FILE_RAW;
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot probe backing volume format: %s"),
- target->backingStore->path);
+ backingStore->path);
} else {
- target->backingStore->format = rc;
+ backingStore->format = rc;
}
}
}
@@ -860,6 +863,7 @@ virStorageBackendFileSystemRefresh(virConnectPtr conn
ATTRIBUTE_UNUSED,
struct stat statbuf;
virStorageVolDefPtr vol = NULL;
virStorageSourcePtr target = NULL;
+ virStorageSourcePtr backingStore;
int direrr;
int fd = -1, ret = -1;
@@ -918,10 +922,12 @@ virStorageBackendFileSystemRefresh(virConnectPtr conn
ATTRIBUTE_UNUSED,
if (vol->target.format == VIR_STORAGE_FILE_DIR)
vol->type = VIR_STORAGE_VOL_DIR;
- if (vol->target.backingStore) {
-
ignore_value(virStorageBackendUpdateVolTargetInfo(vol->target.backingStore,
- false,
-
VIR_STORAGE_VOL_OPEN_DEFAULT));
+ backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
+ if (backingStore) {
+ ignore_value(virStorageBackendUpdateVolTargetInfo(
+ backingStore,
+ false,
+ VIR_STORAGE_VOL_OPEN_DEFAULT));
/* If this failed, the backing file is currently unavailable,
* the capacity, allocation, owner, group and mode are unknown.
* An error message was raised, but we just continue. */
diff --git a/src/storage/storage_backend_gluster.c
b/src/storage/storage_backend_gluster.c
index d2e79bc..9bddb3b 100644
--- a/src/storage/storage_backend_gluster.c
+++ b/src/storage/storage_backend_gluster.c
@@ -247,6 +247,7 @@ virStorageBackendGlusterRefreshVol(virStorageBackendGlusterStatePtr
state,
char *header = NULL;
ssize_t len = VIR_STORAGE_MAX_HEADER;
int backingFormat;
+ virStorageSourcePtr backingStore;
*volptr = NULL;
@@ -302,13 +303,14 @@ virStorageBackendGlusterRefreshVol(virStorageBackendGlusterStatePtr
state,
if (meta->backingStoreRaw) {
if (VIR_ALLOC(vol->target.backingStore) < 0)
goto cleanup;
+ backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
- vol->target.backingStore->path = meta->backingStoreRaw;
+ backingStore->path = meta->backingStoreRaw;
if (backingFormat < 0)
- vol->target.backingStore->format = VIR_STORAGE_FILE_RAW;
+ backingStore->format = VIR_STORAGE_FILE_RAW;
else
- vol->target.backingStore->format = backingFormat;
+ backingStore->format = backingFormat;
meta->backingStoreRaw = NULL;
}
diff --git a/src/storage/storage_backend_logical.c
b/src/storage/storage_backend_logical.c
index 536e617..e2a287d 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')
@@ -151,11 +152,12 @@ virStorageBackendLogicalMakeVol(char **const groups,
if (VIR_ALLOC(vol->target.backingStore) < 0)
goto cleanup;
- if (virAsprintf(&vol->target.backingStore->path, "%s/%s",
+ backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
I see you fixed up the references here, but we still have a problem if
backingStore == NULL (now *technically* I know that cannot happen yet,
but at some point in the future it could.
So what should be done if backingStore == NULL here? Something like:
backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
if (backingStore) {
if (virAsprintf(&backingStore->path, "%s/%s",
pool->def->target.path, groups[1]) < 0)
goto cleanup;
backingStore->format = VIR_STORAGE_POOL_LOGICAL_LVM2;
}
+ if (virAsprintf(&backingStore->path,
"%s/%s",
pool->def->target.path, groups[1]) < 0)
goto cleanup;
- vol->target.backingStore->format = VIR_STORAGE_POOL_LOGICAL_LVM2;
+ backingStore->format = VIR_STORAGE_POOL_LOGICAL_LVM2;
}
if (!vol->key && VIR_STRDUP(vol->key, groups[2]) < 0)
@@ -732,6 +734,7 @@ virStorageBackendLogicalCreateVol(virConnectPtr conn,
virErrorPtr err;
struct stat sb;
bool created = false;
+ virStorageSourcePtr backingStore;
if (vol->target.encryption != NULL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
@@ -764,8 +767,9 @@ virStorageBackendLogicalCreateVol(virConnectPtr conn,
}
virCommandAddArgFormat(cmd, "%lluK", VIR_DIV_UP(vol->target.capacity,
1024));
- if (vol->target.backingStore)
- virCommandAddArgList(cmd, "-s", vol->target.backingStore->path,
NULL);
+ backingStore = virStorageSourceGetBackingStore(&vol->target, 0);
+ if (backingStore)
+ virCommandAddArgList(cmd, "-s", backingStore->path, NULL);
else
virCommandAddArg(cmd, pool->def->source.name);
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 016beaa..af17d82 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -1076,10 +1076,10 @@ virStorageFileChainGetBroken(virStorageSourcePtr chain,
if (!chain)
return 0;
- for (tmp = chain; tmp; tmp = tmp->backingStore) {
+ for (tmp = chain; tmp; tmp = virStorageSourceGetBackingStore(tmp, 0)) {
/* Break when we hit end of chain; report error if we detected
* a missing backing file, infinite loop, or other error */
- if (!tmp->backingStore && tmp->backingStoreRaw) {
+ if (!virStorageSourceGetBackingStore(tmp, 0) && tmp->backingStoreRaw)
{
if (VIR_STRDUP(*brokenFile, tmp->backingStoreRaw) < 0)
return -1;
@@ -1334,8 +1334,8 @@ virStorageFileChainLookup(virStorageSourcePtr chain,
*parent = NULL;
if (startFrom) {
- while (chain && chain != startFrom->backingStore) {
- chain = chain->backingStore;
+ while (chain && chain != virStorageSourceGetBackingStore(startFrom, 0))
{
+ chain = virStorageSourceGetBackingStore(chain, 0);
i++;
}
@@ -1352,7 +1352,7 @@ virStorageFileChainLookup(virStorageSourcePtr chain,
while (chain) {
if (!name && !idx) {
- if (!chain->backingStore)
+ if (!virStorageSourceGetBackingStore(chain, 0))
break;
} else if (idx) {
VIR_DEBUG("%zu: %s", i, chain->path);
@@ -1387,7 +1387,7 @@ virStorageFileChainLookup(virStorageSourcePtr chain,
}
}
*parent = chain;
- chain = chain->backingStore;
+ chain = virStorageSourceGetBackingStore(chain, 0);
i++;
}
@@ -1893,8 +1893,8 @@ virStorageSourceCopy(const virStorageSource *src,
!(ret->auth = virStorageAuthDefCopy(src->auth)))
goto error;
- if (backingChain && src->backingStore) {
- if (!(ret->backingStore = virStorageSourceCopy(src->backingStore,
+ if (backingChain && virStorageSourceGetBackingStore(src, 0)) {
+ if (!(ret->backingStore =
virStorageSourceCopy(virStorageSourceGetBackingStore(src, 0),
true)))
long line
goto error;
}
@@ -2035,7 +2035,7 @@ virStorageSourceBackingStoreClear(virStorageSourcePtr def)
VIR_FREE(def->backingStoreRaw);
/* recursively free backing chain */
- virStorageSourceFree(def->backingStore);
+ virStorageSourceFree(virStorageSourceGetBackingStore(def, 0));
def->backingStore = NULL;
}
@@ -2898,7 +2898,7 @@ virStorageFileGetRelativeBackingPath(virStorageSourcePtr top,
*relpath = NULL;
- for (next = top; next; next = next->backingStore) {
+ for (next = top; next; next = virStorageSourceGetBackingStore(next, 0)) {
if (!next->relPath) {
ret = 1;
goto cleanup;
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index 38ce09e..5bd4637 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -403,7 +403,7 @@ testStorageChain(const void *args)
}
VIR_FREE(expect);
VIR_FREE(actual);
- elt = elt->backingStore;
+ elt = virStorageSourceGetBackingStore(elt, 0);
i++;
}
if (i != data->nfiles) {
@@ -1044,8 +1044,8 @@ mymain(void)
ret = -1;
goto cleanup;
}
- chain2 = chain->backingStore;
- chain3 = chain2->backingStore;
+ chain2 = virStorageSourceGetBackingStore(chain, 0);
+ chain3 = virStorageSourceGetBackingStore(chain2, 0);
#define TEST_LOOKUP_TARGET(id, target, from, name, index, result, \
meta, parent) \
@@ -1110,8 +1110,8 @@ mymain(void)
ret = -1;
goto cleanup;
}
- chain2 = chain->backingStore;
- chain3 = chain2->backingStore;
+ chain2 = virStorageSourceGetBackingStore(chain, 0);
+ chain3 = virStorageSourceGetBackingStore(chain2, 0);
TEST_LOOKUP(28, NULL, "bogus", NULL, NULL, NULL);
TEST_LOOKUP(29, chain, "bogus", NULL, NULL, NULL);
@@ -1157,8 +1157,8 @@ mymain(void)
ret = -1;
goto cleanup;
}
- chain2 = chain->backingStore;
- chain3 = chain2->backingStore;
+ chain2 = virStorageSourceGetBackingStore(chain, 0);
+ chain3 = virStorageSourceGetBackingStore(chain2, 0);
TEST_LOOKUP(56, NULL, "bogus", NULL, NULL, NULL);
TEST_LOOKUP(57, NULL, "sub/link2", chain->path, chain, NULL);