memory hotplug: fix comments when adding section

Here, pfn_to_node should be page_to_nid.

Link: http://lkml.kernel.org/r/1510735205-22540-1-git-send-email-fan.du@intel.com
Signed-off-by: Fan Du <fan.du@intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index fab51a6af962..c52aa05b106c 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -265,7 +265,7 @@ static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
         /*
          * Make all the pages reserved so that nobody will stumble over half
          * initialized state.
-         * FIXME: We also have to associate it with a node because pfn_to_node
+         * FIXME: We also have to associate it with a node because page_to_nid
          * relies on having page with the proper node.
          */
         for (i = 0; i < PAGES_PER_SECTION; i++) {