include/linux/memblock.h: add __init to memblock_set_bottom_up()

memblock_set_bottom_up() is only called by __init
cmdline_parse_movable_node() and __init numa_init().
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Reviewed-by: NTang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/memblock.h

@@ -249,7 +249,7 @@ phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align);
 /*
  * Set the allocation direction to bottom-up or top-down.
  */
-static inline void memblock_set_bottom_up(bool enable)
+static inline void __init memblock_set_bottom_up(bool enable)
 {
 	memblock.bottom_up = enable;
 }
@@ -264,7 +264,7 @@ static inline bool memblock_bottom_up(void)
 	return memblock.bottom_up;
 }
 #else
-static inline void memblock_set_bottom_up(bool enable) {}
+static inline void __init memblock_set_bottom_up(bool enable) {}
 static inline bool memblock_bottom_up(void) { return false; }
 #endif