cgroup: Add accessors for cpuset.memory_migrate

Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

src/libvirt_private.syms

@@ -1137,6 +1137,7 @@ virCgroupGetCpuacctUsage;
 virCgroupGetCpuCfsPeriod;
 virCgroupGetCpuCfsQuota;
 virCgroupGetCpusetCpus;
+virCgroupGetCpusetMemoryMigrate;
 virCgroupGetCpusetMems;
 virCgroupGetCpuShares;
 virCgroupGetDevicePermsString;
@@ -1177,6 +1178,7 @@ virCgroupSetBlkioWeight;
 virCgroupSetCpuCfsPeriod;
 virCgroupSetCpuCfsQuota;
 virCgroupSetCpusetCpus;
+virCgroupSetCpusetMemoryMigrate;
 virCgroupSetCpusetMems;
 virCgroupSetCpuShares;
 virCgroupSetFreezerState;

src/util/vircgroup.c

 /*
  * vircgroup.c: methods for managing control cgroups
  *
- * Copyright (C) 2010-2014 Red Hat, Inc.
+ * Copyright (C) 2010-2015 Red Hat, Inc.
  * Copyright IBM Corp. 2008
  *
  * This library is free software; you can redistribute it and/or
@@ -879,6 +879,7 @@ virCgroupCpuSetInherit(virCgroupPtr parent, virCgroupPtr group)
     const char *inherit_values[] = {
         "cpuset.cpus",
         "cpuset.mems",
+        "cpuset.memory_migrate",
     };
 
     VIR_DEBUG("Setting up inheritance %s -> %s", parent->path, group->path);
@@ -2677,6 +2678,45 @@ virCgroupGetCpusetMems(virCgroupPtr group, char **mems)
 }
 
 
+/**
+ * virCgroupSetCpusetMemoryMigrate:
+ *
+ * @group: The cgroup to set cpuset.memory_migrate for
+ * @migrate: Whether to migrate the memory on change or not
+ *
+ * Returns: 0 on success
+ */
+int
+virCgroupSetCpusetMemoryMigrate(virCgroupPtr group, bool migrate)
+{
+    return virCgroupSetValueStr(group,
+                                VIR_CGROUP_CONTROLLER_CPUSET,
+                                "cpuset.memory_migrate",
+                                migrate ? "1" : "0");
+}
+
+
+/**
+ * virCgroupGetCpusetMemoryMigrate:
+ *
+ * @group: The cgroup to get cpuset.memory_migrate for
+ * @migrate: Migration setting
+ *
+ * Returns: 0 on success
+ */
+int
+virCgroupGetCpusetMemoryMigrate(virCgroupPtr group, bool *migrate)
+{
+    unsigned long long value = 0;
+    int ret = virCgroupGetValueU64(group,
+                                   VIR_CGROUP_CONTROLLER_CPUSET,
+                                   "cpuset.memory_migrate",
+                                   &value);
+    *migrate = !!value;
+    return ret;
+}
+
+
 /**
  * virCgroupSetCpusetCpus:
  *

src/util/vircgroup.h

 /*
  * vircgroup.h: methods for managing control cgroups
  *
- * Copyright (C) 2011-2014 Red Hat, Inc.
+ * Copyright (C) 2011-2015 Red Hat, Inc.
  * Copyright IBM Corp. 2008
  *
  * This library is free software; you can redistribute it and/or
@@ -251,6 +251,9 @@ int virCgroupGetFreezerState(virCgroupPtr group, char **state);
 int virCgroupSetCpusetMems(virCgroupPtr group, const char *mems);
 int virCgroupGetCpusetMems(virCgroupPtr group, char **mems);
 
+int virCgroupSetCpusetMemoryMigrate(virCgroupPtr group, bool migrate);
+int virCgroupGetCpusetMemoryMigrate(virCgroupPtr group, bool *migrate);
+
 int virCgroupSetCpusetCpus(virCgroupPtr group, const char *cpus);
 int virCgroupGetCpusetCpus(virCgroupPtr group, char **cpus);