[PATCH] user of the jiffies rounding patch: Slab

This patch introduces users of the round_jiffies() function in the slab code.

The slab code has a few "run every second" timers for background work; these
are obviously not timing critical as long as they happen roughly at the right
frequency.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/mm/slab.c b/mm/slab.c
index 56af694c9e6a..2c655532f5ef 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -946,7 +946,8 @@ static void __devinit start_cpu_timer(int cpu)
         if (keventd_up() && reap_work->work.func == NULL) {
                 init_reap_node(cpu);
                 INIT_DELAYED_WORK(reap_work, cache_reap);
-                schedule_delayed_work_on(cpu, reap_work, HZ + 3 * cpu);
+                schedule_delayed_work_on(cpu, reap_work,
+                                        __round_jiffies_relative(HZ, cpu));
         }
 }
 
@@ -4006,7 +4007,7 @@ static void cache_reap(struct work_struct *unused)
         if (!mutex_trylock(&cache_chain_mutex)) {
                 /* Give up. Setup the next iteration. */
                 schedule_delayed_work(&__get_cpu_var(reap_work),
-                                      REAPTIMEOUT_CPUC);
+                                      round_jiffies_relative(REAPTIMEOUT_CPUC));
                 return;
         }
 
@@ -4052,7 +4053,8 @@ next:
         next_reap_node();
         refresh_cpu_vm_stats(smp_processor_id());
         /* Set up the next iteration */
-        schedule_delayed_work(&__get_cpu_var(reap_work), REAPTIMEOUT_CPUC);
+        schedule_delayed_work(&__get_cpu_var(reap_work),
+                round_jiffies_relative(REAPTIMEOUT_CPUC));
 }
 
 #ifdef CONFIG_PROC_FS