MemoryZSwapMax directive to configure new memory.zswap.max cgroup file

src/shared/bus-print-properties.c

@@ -162,7 +162,7 @@ static int bus_print_property(const char *name, const char *expected_value, sd_b
 
                         bus_print_property_value(name, expected_value, flags, "[not set]");
 
-                else if ((STR_IN_SET(name, "DefaultMemoryLow", "DefaultMemoryMin", "MemoryLow", "MemoryHigh", "MemoryMax", "MemorySwapMax", "MemoryLimit", "MemoryAvailable") && u == CGROUP_LIMIT_MAX) ||
+                else if ((STR_IN_SET(name, "DefaultMemoryLow", "DefaultMemoryMin", "MemoryLow", "MemoryHigh", "MemoryMax", "MemorySwapMax", "MemoryZSwapMax", "MemoryLimit", "MemoryAvailable") && u == CGROUP_LIMIT_MAX) ||
                          (STR_IN_SET(name, "TasksMax", "DefaultTasksMax") && u == UINT64_MAX) ||
                          (startswith(name, "Limit") && u == UINT64_MAX) ||
                          (startswith(name, "DefaultLimit") && u == UINT64_MAX))

src/shared/bus-unit-util.c

@@ -523,6 +523,7 @@ static int bus_append_cgroup_property(sd_bus_message *m, const char *field, cons
                               "MemoryHigh",
                               "MemoryMax",
                               "MemorySwapMax",
+                              "MemoryZSwapMax",
                               "MemoryLimit",
                               "TasksMax")) {