1 files changed, 37 insertions, 13 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 15ea511fb41c..455cc3bfae99 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6194,6 +6194,37 @@ static unsigned long __paginginit calc_memmap_size(unsigned long spanned_pages,
         return PAGE_ALIGN(pages * sizeof(struct page)) >> PAGE_SHIFT;
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+static void pgdat_init_numabalancing(struct pglist_data *pgdat)
+{
+        spin_lock_init(&pgdat->numabalancing_migrate_lock);
+        pgdat->numabalancing_migrate_nr_pages = 0;
+        pgdat->numabalancing_migrate_next_window = jiffies;
+}
+#else
+static void pgdat_init_numabalancing(struct pglist_data *pgdat) {}
+#endif
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static void pgdat_init_split_queue(struct pglist_data *pgdat)
+{
+        spin_lock_init(&pgdat->split_queue_lock);
+        INIT_LIST_HEAD(&pgdat->split_queue);
+        pgdat->split_queue_len = 0;
+}
+#else
+static void pgdat_init_split_queue(struct pglist_data *pgdat) {}
+#endif
+
+#ifdef CONFIG_COMPACTION
+static void pgdat_init_kcompactd(struct pglist_data *pgdat)
+{
+        init_waitqueue_head(&pgdat->kcompactd_wait);
+}
+#else
+static void pgdat_init_kcompactd(struct pglist_data *pgdat) {}
+#endif
+
 /*
  * Set up the zone data structures:
  *   - mark all pages reserved
@@ -6208,21 +6239,14 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat)
         int nid = pgdat->node_id;
 
         pgdat_resize_init(pgdat);
-#ifdef CONFIG_NUMA_BALANCING
-        spin_lock_init(&pgdat->numabalancing_migrate_lock);
-        pgdat->numabalancing_migrate_nr_pages = 0;
-        pgdat->numabalancing_migrate_next_window = jiffies;
-#endif
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-        spin_lock_init(&pgdat->split_queue_lock);
-        INIT_LIST_HEAD(&pgdat->split_queue);
-        pgdat->split_queue_len = 0;
-#endif
+
+        pgdat_init_numabalancing(pgdat);
+        pgdat_init_split_queue(pgdat);
+        pgdat_init_kcompactd(pgdat);
+
         init_waitqueue_head(&pgdat->kswapd_wait);
         init_waitqueue_head(&pgdat->pfmemalloc_wait);
-#ifdef CONFIG_COMPACTION
-        init_waitqueue_head(&pgdat->kcompactd_wait);
-#endif
+
         pgdat_page_ext_init(pgdat);
         spin_lock_init(&pgdat->lru_lock);
         lruvec_init(node_lruvec(pgdat));