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[libvirt] [PATCH 1/2] conf: don't iterate over backcompat console in virDomainChrDefForeach



If the first console is just a copy of the first serial device we
don't need to iterate over the same device twice in order to perform
actions like security labeling, cgroup configuring, etc.

Currently only security SELinux manager was aware of this fact.

Signed-off-by: Pavel Hrdina <phrdina redhat com>
---
 src/conf/domain_conf.c          | 26 +++++++++++++++++++++-----
 src/security/security_selinux.c | 10 ----------
 2 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 0ff216e3a3..aa441fae3c 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -3517,6 +3517,24 @@ void virDomainDeviceInfoClear(virDomainDeviceInfoPtr info)
 }
 
 
+static bool
+virDomainSkipBackcompatConsole(virDomainDefPtr def,
+                               size_t index,
+                               bool all)
+{
+    virDomainChrDefPtr console = def->consoles[index];
+
+    if (!all && index == 0 &&
+        (console->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL ||
+         console->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE) &&
+        def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
+        return true;
+    }
+
+    return false;
+}
+
+
 static int
 virDomainDeviceInfoIterateInternal(virDomainDefPtr def,
                                    virDomainDeviceInfoCallback cb,
@@ -3585,11 +3603,7 @@ virDomainDeviceInfoIterateInternal(virDomainDefPtr def,
             return -1;
     }
     for (i = 0; i < def->nconsoles; i++) {
-        if (!all &&
-            i == 0 &&
-            (def->consoles[i]->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL ||
-             def->consoles[i]->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE) &&
-             def->os.type == VIR_DOMAIN_OSTYPE_HVM)
+        if (virDomainSkipBackcompatConsole(def, i, all))
             continue;
         device.data.chr = def->consoles[i];
         if (cb(def, &device, &def->consoles[i]->info, opaque) < 0)
@@ -25313,6 +25327,8 @@ virDomainChrDefForeach(virDomainDefPtr def,
             goto done;
     }
     for (i = 0; i < def->nconsoles; i++) {
+        if (virDomainSkipBackcompatConsole(def, i, false))
+            continue;
         if ((iter)(def,
                    def->consoles[i],
                    opaque) < 0)
diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
index df7c96833e..612dbc2a83 100644
--- a/src/security/security_selinux.c
+++ b/src/security/security_selinux.c
@@ -2339,11 +2339,6 @@ virSecuritySELinuxRestoreSecurityChardevCallback(virDomainDefPtr def,
 {
     virSecurityManagerPtr mgr = opaque;
 
-    /* This is taken care of by processing of def->serials */
-    if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE &&
-        dev->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL)
-        return 0;
-
     return virSecuritySELinuxRestoreChardevLabel(mgr, def, dev, dev->source);
 }
 
@@ -2733,11 +2728,6 @@ virSecuritySELinuxSetSecurityChardevCallback(virDomainDefPtr def,
 {
     virSecurityManagerPtr mgr = opaque;
 
-    /* This is taken care of by processing of def->serials */
-    if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE &&
-        dev->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL)
-        return 0;
-
     return virSecuritySELinuxSetChardevLabel(mgr, def, dev, dev->source);
 }
 
-- 
2.13.0


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