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authorSteven Rostedt <srostedt@redhat.com>2010-05-14 09:29:52 -0400
committerSteven Rostedt <rostedt@goodmis.org>2010-05-14 09:29:52 -0400
commit23e117fa44429cc054cb27d5621d64e4ced91e52 (patch)
treea4b9d0902b9c6f009b2c297515221c1b9bed3af8 /include/linux/tick.h
parent668eb65f092902eb7dd526af73d4a7f025a94612 (diff)
parenta93d2f1744206827ccf416e2cdc5018aa503314e (diff)
Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-4
Diffstat (limited to 'include/linux/tick.h')
-rw-r--r--include/linux/tick.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h
index d2ae79e21be3..b232ccc0ee29 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -42,6 +42,7 @@ enum tick_nohz_mode {
* @idle_waketime: Time when the idle was interrupted
* @idle_exittime: Time when the idle state was left
* @idle_sleeptime: Sum of the time slept in idle with sched tick stopped
+ * @iowait_sleeptime: Sum of the time slept in idle with sched tick stopped, with IO outstanding
* @sleep_length: Duration of the current idle sleep
* @do_timer_lst: CPU was the last one doing do_timer before going idle
*/
@@ -60,7 +61,7 @@ struct tick_sched {
ktime_t idle_waketime;
ktime_t idle_exittime;
ktime_t idle_sleeptime;
- ktime_t idle_lastupdate;
+ ktime_t iowait_sleeptime;
ktime_t sleep_length;
unsigned long last_jiffies;
unsigned long next_jiffies;
@@ -124,6 +125,7 @@ extern void tick_nohz_stop_sched_tick(int inidle);
extern void tick_nohz_restart_sched_tick(void);
extern ktime_t tick_nohz_get_sleep_length(void);
extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time);
+extern u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time);
# else
static inline void tick_nohz_stop_sched_tick(int inidle) { }
static inline void tick_nohz_restart_sched_tick(void) { }
@@ -134,6 +136,7 @@ static inline ktime_t tick_nohz_get_sleep_length(void)
return len;
}
static inline u64 get_cpu_idle_time_us(int cpu, u64 *unused) { return -1; }
+static inline u64 get_cpu_iowait_time_us(int cpu, u64 *unused) { return -1; }
# endif /* !NO_HZ */
#endif