qemu: Assign managed PR path when preparing storage source

Rather than always checking which path to use pre-assign it when
preparing storage source.

This reduces the need to pass 'vm' around too much. For later use the
path can be retrieved from the status XML.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>

src/qemu/qemu_command.c

@@ -9717,7 +9717,6 @@ qemuBuildPanicCommandLine(virCommandPtr cmd,
 
 /**
  * qemuBuildPRManagerInfoProps:
- * @vm: domain object
  * @disk: disk definition
  * @propsret: Returns JSON object containing properties of the pr-manager-helper object
  * @aliasret: alias of the pr-manager-helper object
@@ -9728,12 +9727,10 @@ qemuBuildPanicCommandLine(virCommandPtr cmd,
  *         -1 on failure (with error message set).
  */
 int
-qemuBuildPRManagerInfoProps(virDomainObjPtr vm,
-                            const virDomainDiskDef *disk,
+qemuBuildPRManagerInfoProps(const virDomainDiskDef *disk,
                             virJSONValuePtr *propsret,
                             char **aliasret)
 {
-    char *socketPath = NULL;
     char *alias = NULL;
     int ret = -1;
 
@@ -9743,9 +9740,6 @@ qemuBuildPRManagerInfoProps(virDomainObjPtr vm,
     if (!disk->src->pr)
         return 0;
 
-    if (!(socketPath = qemuDomainGetPRSocketPath(vm, disk->src->pr)))
-        return ret;
-
     if (virStoragePRDefIsManaged(disk->src->pr)) {
         if (VIR_STRDUP(alias, qemuDomainGetManagedPRAlias()) < 0)
             goto cleanup;
@@ -9755,7 +9749,7 @@ qemuBuildPRManagerInfoProps(virDomainObjPtr vm,
     }
 
     if (virJSONValueObjectCreate(propsret,
-                                 "s:path", socketPath,
+                                 "s:path", disk->src->pr->path,
                                  NULL) < 0)
         goto cleanup;
 
@@ -9763,14 +9757,12 @@ qemuBuildPRManagerInfoProps(virDomainObjPtr vm,
     ret = 0;
  cleanup:
     VIR_FREE(alias);
-    VIR_FREE(socketPath);
     return ret;
 }
 
 
 static int
-qemuBuildMasterPRCommandLine(virDomainObjPtr vm,
-                             virCommandPtr cmd,
+qemuBuildMasterPRCommandLine(virCommandPtr cmd,
                              const virDomainDef *def)
 {
     size_t i;
@@ -9790,7 +9782,7 @@ qemuBuildMasterPRCommandLine(virDomainObjPtr vm,
             managedAdded = true;
         }
 
-        if (qemuBuildPRManagerInfoProps(vm, disk, &props, &alias) < 0)
+        if (qemuBuildPRManagerInfoProps(disk, &props, &alias) < 0)
             goto cleanup;
 
         if (!props)
@@ -9984,7 +9976,7 @@ qemuBuildCommandLine(virQEMUDriverPtr driver,
     if (qemuBuildMasterKeyCommandLine(cmd, priv) < 0)
         goto error;
 
-    if (qemuBuildMasterPRCommandLine(vm, cmd, def) < 0)
+    if (qemuBuildMasterPRCommandLine(cmd, def) < 0)
         goto error;
 
     if (enableFips)

src/qemu/qemu_command.h

@@ -55,8 +55,7 @@ virCommandPtr qemuBuildCommandLine(virQEMUDriverPtr driver,
                                    int **nicindexes);
 
 /* Generate the object properties for pr-manager */
-int qemuBuildPRManagerInfoProps(virDomainObjPtr vm,
-                                const virDomainDiskDef *disk,
+int qemuBuildPRManagerInfoProps(const virDomainDiskDef *disk,
                                 virJSONValuePtr *propsret,
                                 char **alias);
 

src/qemu/qemu_domain.c

@@ -11930,6 +11930,22 @@ qemuDomainPrepareDiskCachemode(virDomainDiskDefPtr disk)
 }
 
 
+static int
+qemuDomainPrepareStorageSourcePR(virStorageSourcePtr src,
+                                 qemuDomainObjPrivatePtr priv)
+{
+    if (!src->pr)
+        return 0;
+
+    if (virStoragePRDefIsManaged(src->pr)) {
+        if (!(src->pr->path = qemuDomainGetManagedPRSocketPath(priv)))
+            return -1;
+    }
+
+    return 0;
+}
+
+
 int
 qemuDomainPrepareDiskSource(virDomainDiskDefPtr disk,
                             qemuDomainObjPrivatePtr priv,
@@ -11946,6 +11962,9 @@ qemuDomainPrepareDiskSource(virDomainDiskDefPtr disk,
     if (qemuDomainPrepareDiskSourceChain(disk, NULL, cfg, priv->qemuCaps) < 0)
         return -1;
 
+    if (qemuDomainPrepareStorageSourcePR(disk->src, priv) < 0)
+        return -1;
+
     return 0;
 }
 
@@ -12051,22 +12070,12 @@ qemuProcessEventFree(struct qemuProcessEvent *event)
 
 
 char *
-qemuDomainGetPRSocketPath(virDomainObjPtr vm,
-                          virStoragePRDefPtr pr)
+qemuDomainGetManagedPRSocketPath(qemuDomainObjPrivatePtr priv)
 {
-    qemuDomainObjPrivatePtr priv = vm->privateData;
-    const char *defaultAlias = NULL;
     char *ret = NULL;
 
-    if (!pr)
-        return NULL;
-
-    if (virStoragePRDefIsManaged(pr)) {
-        defaultAlias = qemuDomainGetManagedPRAlias();
-        ignore_value(virAsprintf(&ret, "%s/%s.sock", priv->libDir, defaultAlias));
-    } else {
-        ignore_value(VIR_STRDUP(ret, pr->path));
-    }
+    ignore_value(virAsprintf(&ret, "%s/%s.sock", priv->libDir,
+                             qemuDomainGetManagedPRAlias()));
 
     return ret;
 }

src/qemu/qemu_domain.h

@@ -1006,7 +1006,6 @@ qemuDomainDiskCachemodeFlags(int cachemode,
                              bool *direct,
                              bool *noflush);
 
-char * qemuDomainGetPRSocketPath(virDomainObjPtr vm,
-                                 virStoragePRDefPtr pr);
+char * qemuDomainGetManagedPRSocketPath(qemuDomainObjPrivatePtr priv);
 
 #endif /* __QEMU_DOMAIN_H__ */

src/qemu/qemu_hotplug.c

@@ -401,7 +401,7 @@ qemuMaybeBuildPRManagerInfoProps(virDomainObjPtr vm,
         return 0;
     }
 
-    return qemuBuildPRManagerInfoProps(vm, disk, propsret, aliasret);
+    return qemuBuildPRManagerInfoProps(disk, propsret, aliasret);
 }
 
 

src/qemu/qemu_process.c

@@ -2659,7 +2659,7 @@ qemuProcessStartPRDaemon(virDomainObjPtr vm,
     if ((pidfd = virPidFileAcquirePath(pidfile, false, -1)) < 0)
         goto cleanup;
 
-    if (!(socketPath = qemuDomainGetPRSocketPath(vm, disk->src->pr)))
+    if (!(socketPath = qemuDomainGetManagedPRSocketPath(priv)))
         goto cleanup;
 
     /* Remove stale socket */