vmalloc: fix use of non-existent percpu variable in put_cpu_var()

vmalloc used non-existent percpu variable vmap_cpu_blocks instead of
the intended vmap_block_queue.  This went unnoticed because
put_cpu_var() didn't evaluate the parameter.  Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Nick Piggin <npiggin@suse.de>
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 69511e6..b65cfe4 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -760,7 +760,7 @@
 	spin_lock(&vbq->lock);
 	list_add(&vb->free_list, &vbq->free);
 	spin_unlock(&vbq->lock);
-	put_cpu_var(vmap_cpu_blocks);
+	put_cpu_var(vmap_block_queue);
 
 	return vb;
 }
@@ -825,7 +825,7 @@
 		}
 		spin_unlock(&vb->lock);
 	}
-	put_cpu_var(vmap_cpu_blocks);
+	put_cpu_var(vmap_block_queue);
 	rcu_read_unlock();
 
 	if (!addr) {