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Add a flag to indicate deferrable timers in /proc/timer_stats

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Add a flag in /proc/timer_stats to indicate deferrable timers.  This will
let developers/users to differentiate between types of tiemrs in
/proc/timer_stats.

Deferrable timer and normal timer will appear in /proc/timer_stats as below.
  10D,     1 swapper          queue_delayed_work_on (delayed_work_timer_fn)
   10,     1 swapper          queue_delayed_work_on (delayed_work_timer_fn)

Also version of timer_stats changes from v0.1 to v0.2

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Venki Pallipadi 2007-07-15 23:40:30 -07:00 • committed by Linus Torvalds
parent e080706190
commit c5c061b8f9
5 changed files with 36 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

15
include/linux/timer.h
View file

@ -90,16 +90,13 @@ extern unsigned long get_next_timer_interrupt(unsigned long now);
*/
#ifdef CONFIG_TIMER_STATS
#define TIMER_STATS_FLAG_DEFERRABLE 0x1
extern void init_timer_stats(void);
extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
void *timerf, char * comm);
static inline void timer_stats_account_timer(struct timer_list *timer)
{
timer_stats_update_stats(timer, timer->start_pid, timer->start_site,
timer->function, timer->start_comm);
}
void *timerf, char *comm,
unsigned int timer_flag);
extern void __timer_stats_timer_set_start_info(struct timer_list *timer,
void *addr);
@ -118,10 +115,6 @@ static inline void init_timer_stats(void)
{
}
static inline void timer_stats_account_timer(struct timer_list *timer)
{
}
static inline void timer_stats_timer_set_start_info(struct timer_list *timer)
{
}