mm: pfn_to_section_nr()/section_nr_to_pfn() is valid only in CONFIG_SPARSEMEM context
pfn_to_section_nr()/section_nr_to_pfn() is valid only in CONFIG_SPARSEMEM
context. Move it to proper place.
Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index e56f835..d715200 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -928,9 +928,6 @@
#define pfn_to_nid(pfn) (0)
#endif
-#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
-#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
-
#ifdef CONFIG_SPARSEMEM
/*
@@ -956,6 +953,9 @@
#error Allocator MAX_ORDER exceeds SECTION_SIZE
#endif
+#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
+#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
+
struct page;
struct page_cgroup;
struct mem_section {