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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-12-10 10:56:29 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-12-10 13:08:11 +0100 |
| commit | 5f201907dfe4ad42c44006ddfcec00ed12e59497 (patch) | |
| tree | b796471d44eb588f8d95affaeb0aa6cf6478b460 /kernel/hrtimer.c | |
| parent | 41d2e494937715d3150e5c75d01f0e75ae899337 (diff) | |
| download | lwn-5f201907dfe4ad42c44006ddfcec00ed12e59497.tar.gz lwn-5f201907dfe4ad42c44006ddfcec00ed12e59497.zip | |
hrtimer: move timer stats helper functions to hrtimer.c
There is no reason to make timer_stats_hrtimer_set_start_info and
friends visible to the rest of the kernel. So move all of them to
hrtimer.c. Also make timer_stats_hrtimer_set_start_info a static
inline function so it gets inlined and we avoid another function call.
Based on a patch by Thomas Gleixner.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
LKML-Reference: <20091210095629.GC4144@osiris.boeblingen.de.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/hrtimer.c')
| -rw-r--r-- | kernel/hrtimer.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 931a4d99bc55..d2f9239dc6ba 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -756,17 +756,33 @@ static inline void hrtimer_init_timer_hres(struct hrtimer *timer) { } #endif /* CONFIG_HIGH_RES_TIMERS */ -#ifdef CONFIG_TIMER_STATS -void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer, void *addr) +static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer) { +#ifdef CONFIG_TIMER_STATS if (timer->start_site) return; - - timer->start_site = addr; + timer->start_site = __builtin_return_address(0); memcpy(timer->start_comm, current->comm, TASK_COMM_LEN); timer->start_pid = current->pid; +#endif } + +static inline void timer_stats_hrtimer_clear_start_info(struct hrtimer *timer) +{ +#ifdef CONFIG_TIMER_STATS + timer->start_site = NULL; #endif +} + +static inline void timer_stats_account_hrtimer(struct hrtimer *timer) +{ +#ifdef CONFIG_TIMER_STATS + if (likely(!timer_stats_active)) + return; + timer_stats_update_stats(timer, timer->start_pid, timer->start_site, + timer->function, timer->start_comm, 0); +#endif +} /* * Counterpart to lock_hrtimer_base above: |