1 files changed, 19 insertions, 12 deletions

diff --git a/mm/sparse.c b/mm/sparse.c
index b2b9a3e34696..fcc3d176f1ea 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -16,7 +16,6 @@
 
 #include "internal.h"
 #include <asm/dma.h>
-#include <asm/pgalloc.h>
 
 /*
  * Permanent SPARSEMEM data:
@@ -250,7 +249,7 @@ void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)
 #endif
 
 /* Record a memory area against a node. */
-void __init memory_present(int nid, unsigned long start, unsigned long end)
+static void __init memory_present(int nid, unsigned long start, unsigned long end)
 {
 	unsigned long pfn;
 
@@ -286,11 +285,11 @@ void __init memory_present(int nid, unsigned long start, unsigned long end)
 }
 
 /*
- * Mark all memblocks as present using memory_present(). This is a
- * convenience function that is useful for a number of arches
- * to mark all of the systems memory as present during initialization.
+ * Mark all memblocks as present using memory_present().
+ * This is a convenience function that is useful to mark all of the systems
+ * memory as present during initialization.
  */
-void __init memblocks_present(void)
+static void __init memblocks_present(void)
 {
 	struct memblock_region *reg;
 
@@ -575,9 +574,13 @@ failed:
  */
 void __init sparse_init(void)
 {
-	unsigned long pnum_begin = first_present_section_nr();
-	int nid_begin = sparse_early_nid(__nr_to_section(pnum_begin));
-	unsigned long pnum_end, map_count = 1;
+	unsigned long pnum_end, pnum_begin, map_count = 1;
+	int nid_begin;
+
+	memblocks_present();
+
+	pnum_begin = first_present_section_nr();
+	nid_begin = sparse_early_nid(__nr_to_section(pnum_begin));
 
 	/* Setup pageblock_order for HUGETLB_PAGE_SIZE_VARIABLE */
 	set_pageblock_order();
@@ -825,10 +828,14 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages,
 		ms->section_mem_map &= ~SECTION_HAS_MEM_MAP;
 	}
 
-	if (section_is_early && memmap)
-		free_map_bootmem(memmap);
-	else
+	/*
+	 * The memmap of early sections is always fully populated. See
+	 * section_activate() and pfn_valid() .
+	 */
+	if (!section_is_early)
 		depopulate_section_memmap(pfn, nr_pages, altmap);
+	else if (memmap)
+		free_map_bootmem(memmap);
 
 	if (empty)
 		ms->section_mem_map = (unsigned long)NULL;