mm: use early_pfn_to_nid in register_page_bootmem_info_node

register_page_bootmem_info_node() is invoked in mem_init(), so it will
be called before page_alloc_init_late() if DEFERRED_STRUCT_PAGE_INIT is
enabled.  But, pfn_to_nid() depends on memmap which won't be fully setup
until page_alloc_init_late() is done, so replace pfn_to_nid() by
early_pfn_to_nid().

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Yang Shi <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index caf2a14c37ada40b4d690eaae18e6d72cd274d9b..b8ee0806415f18c650cb8fa130d5102894e3a849 100644 (file)
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -300,7 +300,7 @@ void register_page_bootmem_info_node(struct pglist_data *pgdat)
                 * multiple nodes we check that this pfn does not already
                 * reside in some other nodes.
                 */
-               if (pfn_valid(pfn) && (pfn_to_nid(pfn) == node))
+               if (pfn_valid(pfn) && (early_pfn_to_nid(pfn) == node))
                        register_page_bootmem_info_section(pfn);
        }
 }