mm/mm_init: rename init_reserved_page to init_deferred_page

When CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, init_reserved_page()
function performs initialization of a struct page that would have been
deferred normally.

Rename it to init_deferred_page() to better reflect what the function does.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport (Microsoft) <[email protected]>
Reviewed-by: Wei Yang <[email protected]>
Cc: Frank van der Linden <[email protected]>
Cc: Muchun Song <[email protected]>
Cc: Changyuan Lyu <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: rppt

mm/mm_init.c

@@ -743,7 +743,7 @@ defer_init(int nid, unsigned long pfn, unsigned long end_pfn)
 	return false;
 }
 
-static void __meminit init_reserved_page(unsigned long pfn, int nid)
+static void __meminit init_deferred_page(unsigned long pfn, int nid)
 {
 	if (early_page_initialised(pfn, nid))
 		return;
@@ -763,7 +763,7 @@ static inline bool defer_init(int nid, unsigned long pfn, unsigned long end_pfn)
 	return false;
 }
 
-static inline void init_reserved_page(unsigned long pfn, int nid)
+static inline void init_deferred_page(unsigned long pfn, int nid)
 {
 }
 #endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */
@@ -784,7 +784,7 @@ void __meminit reserve_bootmem_region(phys_addr_t start,
 		if (pfn_valid(start_pfn)) {
 			struct page *page = pfn_to_page(start_pfn);
 
-			init_reserved_page(start_pfn, nid);
+			init_deferred_page(start_pfn, nid);
 
 			/*
 			 * no need for atomic set_bit because the struct