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* [PATCH,RESEND 2/3] cpufreq_ondemand.c: don't use _WORK_NAR
@ 2007-02-23 21:35 Oleg Nesterov
  2007-02-23 21:48 ` Dave Jones
  0 siblings, 1 reply; 2+ messages in thread
From: Oleg Nesterov @ 2007-02-23 21:35 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Venkatesh Pallipadi, Jun Nakajima, David Howells, linux-kernel

Looks like dbs_timer() is very careful wrt per_cpu(cpu_dbs_info),
and it doesn't need the help of WORK_STRUCT_NOAUTOREL.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-By: David Howells <dhowells@redhat.com>

--- WQ/drivers/cpufreq/cpufreq_ondemand.c~2_cpufreq	2007-02-18 22:56:47.000000000 +0300
+++ WQ/drivers/cpufreq/cpufreq_ondemand.c	2007-02-19 00:07:46.000000000 +0300
@@ -432,9 +432,6 @@ static void do_dbs_timer(struct work_str
 	/* We want all CPUs to do sampling nearly on same jiffy */
 	int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
 
-	/* Permit rescheduling of this work item */
-	work_release(work);
-
 	delay -= jiffies % delay;
 
 	if (lock_policy_rwsem_write(cpu) < 0)
@@ -473,7 +470,7 @@ static inline void dbs_timer_init(struct
 	dbs_info->enable = 1;
 	ondemand_powersave_bias_init();
 	dbs_info->sample_type = DBS_NORMAL_SAMPLE;
-	INIT_DELAYED_WORK_NAR(&dbs_info->work, do_dbs_timer);
+	INIT_DELAYED_WORK(&dbs_info->work, do_dbs_timer);
 	queue_delayed_work_on(dbs_info->cpu, kondemand_wq, &dbs_info->work,
 	                      delay);
 }


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH,RESEND 2/3] cpufreq_ondemand.c: don't use _WORK_NAR
  2007-02-23 21:35 [PATCH,RESEND 2/3] cpufreq_ondemand.c: don't use _WORK_NAR Oleg Nesterov
@ 2007-02-23 21:48 ` Dave Jones
  0 siblings, 0 replies; 2+ messages in thread
From: Dave Jones @ 2007-02-23 21:48 UTC (permalink / raw)
  To: Oleg Nesterov
  Cc: Andrew Morton, Venkatesh Pallipadi, Jun Nakajima, David Howells,
	linux-kernel

On Sat, Feb 24, 2007 at 12:35:06AM +0300, Oleg Nesterov wrote:
 > Looks like dbs_timer() is very careful wrt per_cpu(cpu_dbs_info),
 > and it doesn't need the help of WORK_STRUCT_NOAUTOREL.
 > 
 > Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
 > Acked-By: David Howells <dhowells@redhat.com>

This is sitting in cpufreq.git already.
I'll ask Linus to pull when he gets back.

		Dave

-- 
http://www.codemonkey.org.uk

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2007-02-23 21:35 [PATCH,RESEND 2/3] cpufreq_ondemand.c: don't use _WORK_NAR Oleg Nesterov
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