mm/slab: move cache_flusharray() out of unlikely.text section

Now, due to likely keyword, compiled code of cache_flusharray() is on
unlikely.text section.  Although it is uncommon case compared to free to
cpu cache case, it is common case than free_block().  But, free_block() is
on normal text section.  This patch fix this odd situation to remove
likely keyword.
Signed-off-by: NJoonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

mm/slab.c

@@ -3399,7 +3399,7 @@ static inline void __cache_free(struct kmem_cache *cachep, void *objp,
 	if (nr_online_nodes > 1 && cache_free_alien(cachep, objp))
 		return;
 
-	if (likely(ac->avail < ac->limit)) {
+	if (ac->avail < ac->limit) {
 		STATS_INC_FREEHIT(cachep);
 	} else {
 		STATS_INC_FREEMISS(cachep);