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Commit 2b284214 authored by Arjan van de Ven's avatar Arjan van de Ven Committed by Linus Torvalds
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[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: default avatarArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 44d306e1

mm/slab.c

+5 −3
Original line number Diff line number Diff line
@@ -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