writeback: fix problem with !CONFIG_BLOCK compilation

[safe/jmp/linux-2.6] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 53b2fcf..9886424 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -690,9 +690,11 @@ int dirty_writeback_centisecs_handler(ctl_table *table, int write,
        void __user *buffer, size_t *length, loff_t *ppos)
 {
        proc_dointvec(table, write, buffer, length, ppos);
+       bdi_arm_supers_timer();
        return 0;
 }
 
+#ifdef CONFIG_BLOCK
 void laptop_mode_timer_fn(unsigned long data)
 {
        struct request_queue *q = (struct request_queue *)data;
@@ -734,6 +736,7 @@ void laptop_sync_completion(void)
 
        rcu_read_unlock();
 }
+#endif
 
 /*
  * If ratelimit_pages is too high then we can get into dirty-data overload