libvirt/libvirt-conf-Set-default-values-of-retry-fileds.patch

From 2b79389fe60dc8fc0bf8788a346a35d63ae6883d Mon Sep 17 00:00:00 2001
From: Jiahui Cen <cenjiahui@huawei.com>
Date: Thu, 18 Mar 2021 15:14:20 +0800
Subject: [PATCH] libvirt/conf: Set default values of retry fileds

Currently the default values of retry_interval and retry_timeout are set
to -1, when 'driver' option exists without retry fileds. It conflicts
with the default values when the 'driver' option does not exist.

So let's set default values of retry_interval and retry_timeout to 0 when
retry policy is not enabled.

Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
---
 src/conf/domain_conf.c | 18 ++++++++++++------
 src/conf/domain_conf.h |  2 ++
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index f31f06b428..0aa514bda3 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -7775,6 +7775,7 @@ virDomainDiskDefDriverParseXML(virDomainDiskDef *def,
                                xmlNodePtr cur)
 {
     g_autofree char *tmp = NULL;
+    bool retry_enabled = false;
 
     def->driverName = virXMLPropString(cur, "name");
 
@@ -7799,28 +7800,33 @@ virDomainDiskDefDriverParseXML(virDomainDiskDef *def,
         return -1;
     }
 
-    def->retry_interval = -1;
+    retry_enabled = (def->error_policy == VIR_DOMAIN_DISK_ERROR_POLICY_RETRY) ||
+                    (def->rerror_policy == VIR_DOMAIN_DISK_ERROR_POLICY_RETRY);
+
     if ((tmp = virXMLPropString(cur, "retry_interval")) &&
-        ((def->error_policy != VIR_DOMAIN_DISK_ERROR_POLICY_RETRY &&
-          def->rerror_policy != VIR_DOMAIN_DISK_ERROR_POLICY_RETRY) ||
+        (!retry_enabled ||
          (virStrToLong_ll(tmp, NULL, 10, &def->retry_interval) < 0) ||
          (def->retry_interval < 0))) {
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("unknown disk retry interval '%s'"), tmp);
         return -1;
     }
+    if (retry_enabled && !tmp) {
+        def->retry_interval = VIR_DOMAIN_DISK_DEFAULT_RETRY_INTERVAL;
+    }
     VIR_FREE(tmp);
 
-    def->retry_timeout = -1;
     if ((tmp = virXMLPropString(cur, "retry_timeout")) &&
-        ((def->error_policy != VIR_DOMAIN_DISK_ERROR_POLICY_RETRY &&
-          def->rerror_policy != VIR_DOMAIN_DISK_ERROR_POLICY_RETRY) ||
+        (!retry_enabled ||
          (virStrToLong_ll(tmp, NULL, 10, &def->retry_timeout) < 0) ||
          (def->retry_timeout < 0))) {
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("unknown disk retry interval '%s'"), tmp);
         return -1;
     }
+    if (retry_enabled && !tmp) {
+        def->retry_timeout = VIR_DOMAIN_DISK_DEFAULT_RETRY_TIMEOUT;
+    }
 
     if (virXMLPropEnum(cur, "io", virDomainDiskIoTypeFromString,
                        VIR_XML_PROP_NONZERO, &def->iomode) < 0)
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 021623cce7..c810721d5b 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -515,6 +515,8 @@ typedef enum {
 
 VIR_ENUM_DECL(virDomainSnapshotLocation);
 
+#define VIR_DOMAIN_DISK_DEFAULT_RETRY_INTERVAL    1000
+#define VIR_DOMAIN_DISK_DEFAULT_RETRY_TIMEOUT     0
 
 /* Stores the virtual disk configuration */
 struct _virDomainDiskDef {
-- 
2.27.0