mm/memory_hotplug: remove __online_page_free() and __online_page_increment_counters()

Let's drop the now unused functions.

Link: http://lkml.kernel.org/r/20190909114830.662-4-david@redhat.comSigned-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/memory_hotplug.h

@@ -107,8 +107,6 @@ extern int set_online_page_callback(online_page_callback_t callback);
 extern int restore_online_page_callback(online_page_callback_t callback);
 
 extern void __online_page_set_limits(struct page *page);
-extern void __online_page_increment_counters(struct page *page);
-extern void __online_page_free(struct page *page);
 
 extern int try_online_node(int nid);
 

mm/memory_hotplug.c

@@ -603,18 +603,6 @@ void __online_page_set_limits(struct page *page)
 }
 EXPORT_SYMBOL_GPL(__online_page_set_limits);
 
-void __online_page_increment_counters(struct page *page)
-{
-	adjust_managed_page_count(page, 1);
-}
-EXPORT_SYMBOL_GPL(__online_page_increment_counters);
-
-void __online_page_free(struct page *page)
-{
-	__free_reserved_page(page);
-}
-EXPORT_SYMBOL_GPL(__online_page_free);
-
 void generic_online_page(struct page *page, unsigned int order)
 {
 	kernel_map_pages(page, 1 << order, 1);