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qemuMigrationDstPrecreateDisk: Refactor cleanup

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Automatically free helper variables, remove the 'cleanup' label and
use virBufferCurrentContent() to take the XML from the buffer rather
than extracting it to a separate variable.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Peter Krempa 2024-02-08 16:48:17 +01:00
parent 00c0a94ab5
commit e42a3935ac
1 changed files with 14 additions and 28 deletions
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42
src/qemu/qemu_migration.c
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@ -277,12 +277,11 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
virDomainDiskDef *disk,
unsigned long long capacity)
{
int ret = -1;
virStoragePoolPtr pool = NULL;
virStorageVolPtr vol = NULL;
char *volName = NULL, *basePath = NULL;
char *volStr = NULL;
g_autoptr(virStoragePool) pool = NULL;
g_autoptr(virStorageVol) vol = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
char *volName = NULL;
g_autofree char *basePath = NULL;
const char *format = NULL;
const char *compat = NULL;
unsigned int flags = 0;
@ -303,7 +302,7 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
virReportError(VIR_ERR_INVALID_ARG,
_("malformed disk path: %1$s"),
disk->src->path);
goto cleanup;
return -1;
}
*volName = '\0';
@ -311,11 +310,11 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
if (!*conn) {
if (!(*conn = virGetConnectStorage()))
goto cleanup;
return -1;
}
if (!(pool = virStoragePoolLookupByTargetPath(*conn, basePath)))
goto cleanup;
return -1;
format = virStorageFileFormatTypeToString(disk->src->format);
if (disk->src->format == VIR_STORAGE_FILE_QCOW2) {
flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
@ -327,11 +326,11 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
case VIR_STORAGE_TYPE_VOLUME:
if (!*conn) {
if (!(*conn = virGetConnectStorage()))
goto cleanup;
return -1;
}
if (!(pool = virStoragePoolLookupByName(*conn, disk->src->srcpool->pool)))
goto cleanup;
return -1;
format = virStorageFileFormatTypeToString(disk->src->format);
volName = disk->src->srcpool->volume;
if (disk->src->format == VIR_STORAGE_FILE_QCOW2)
@ -353,14 +352,13 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot precreate storage for disk type '%1$s'"),
virStorageTypeToString(disk->src->type));
goto cleanup;
return -1;
}
if ((vol = virStorageVolLookupByName(pool, volName))) {
VIR_DEBUG("Skipping creation of already existing volume of name '%s'",
volName);
ret = 0;
goto cleanup;
return 0;
}
virBufferAddLit(&buf, "<volume>\n");
@ -377,22 +375,10 @@ qemuMigrationDstPrecreateDisk(virConnectPtr *conn,
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</volume>\n");
if (!(volStr = virBufferContentAndReset(&buf))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unable to create volume XML"));
goto cleanup;
}
if (!(vol = virStorageVolCreateXML(pool, virBufferCurrentContent(&buf), flags)))
return -1;
if (!(vol = virStorageVolCreateXML(pool, volStr, flags)))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(basePath);
VIR_FREE(volStr);
virObjectUnref(vol);
virObjectUnref(pool);
return ret;
return 0;
}
static bool