mm: kill free_all_bootmem_node()

Now nobody makes use of free_all_bootmem_node(), kill it.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Yinghai Lu <yinghai@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/bootmem.h

@@ -44,7 +44,6 @@ extern unsigned long init_bootmem_node(pg_data_t *pgdat,
 				       unsigned long endpfn);
 extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
 
-extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
 extern unsigned long free_all_bootmem(void);
 extern void reset_all_zones_managed_pages(void);
 

mm/bootmem.c

@@ -263,24 +263,6 @@ void __init reset_all_zones_managed_pages(void)
 	reset_managed_pages_done = 1;
 }
 
-/**
- * free_all_bootmem_node - release a node's free pages to the buddy allocator
- * @pgdat: node to be released
- *
- * Returns the number of pages actually released.
- */
-unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
-{
-	unsigned long pages;
-
-	register_page_bootmem_info_node(pgdat);
-	reset_node_managed_pages(pgdat);
-	pages = free_all_bootmem_core(pgdat->bdata);
-	totalram_pages += pages;
-
-	return pages;
-}
-
 /**
  * free_all_bootmem - release free pages to the buddy allocator
  *