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authorVenki Pallipadi <venkatesh.pallipadi@intel.com>2007-05-08 00:27:47 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:05 -0700
commit28287033e12463c8ff89f1ea8038783d0360391c (patch)
tree27eabb2890dd1e2e30363dee2f4263cbee906a42
parent6e453a67510a17f01b63835f18569e8c3939a38c (diff)
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Add a new deferrable delayed work init
Add a new deferrable delayed work init. This can be used to schedule work that are 'unimportant' when CPU is idle and can be called later, when CPU eventually comes out of idle. Use this init in cpufreq ondemand governor. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/cpufreq/cpufreq_ondemand.c2
-rw-r--r--include/linux/workqueue.h6
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 8d053f500fc2..8532bb79e5fc 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -470,7 +470,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
dbs_info->enable = 1;
ondemand_powersave_bias_init();
dbs_info->sample_type = DBS_NORMAL_SAMPLE;
- INIT_DELAYED_WORK(&dbs_info->work, do_dbs_timer);
+ INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
queue_delayed_work_on(dbs_info->cpu, kondemand_wq, &dbs_info->work,
delay);
}
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index b8abfc74d038..f16ba1e0687d 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -121,6 +121,12 @@ struct execute_work {
init_timer(&(_work)->timer); \
} while (0)
+#define INIT_DELAYED_WORK_DEFERRABLE(_work, _func) \
+ do { \
+ INIT_WORK(&(_work)->work, (_func)); \
+ init_timer_deferrable(&(_work)->timer); \
+ } while (0)
+
/**
* work_pending - Find out whether a work item is currently pending
* @work: The work item in question