net: introduce helper macro for_each_cmsghdr

[firefly-linux-kernel-4.4.55.git] / include / linux / page-isolation.h

diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index 3fff8e774067904bb73b5817ba471099a80555da..2dc1e1697b451ce678781a55776a15c8934be7a5 100644 (file)
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -2,6 +2,10 @@
 #define __LINUX_PAGEISOLATION_H
 
 #ifdef CONFIG_MEMORY_ISOLATION
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+       return zone->nr_isolate_pageblock;
+}
 static inline bool is_migrate_isolate_page(struct page *page)
 {
        return get_pageblock_migratetype(page) == MIGRATE_ISOLATE;
@@ -11,6 +15,10 @@ static inline bool is_migrate_isolate(int migratetype)
        return migratetype == MIGRATE_ISOLATE;
 }
 #else
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+       return false;
+}
 static inline bool is_migrate_isolate_page(struct page *page)
 {
        return false;