aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/tick.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 16:19:56 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 16:19:56 -0400
commit99ebcf8285df28f32fd2d1c19a7166e70f00309c (patch)
treecaf45f39a77026b2fae2413c145067a1e5164701 /include/linux/tick.h
parent72558dde738b06cc01e16b3247a9659ca739e22d (diff)
parentc465a76af658b443075d6efee1c3131257643020 (diff)
Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits) fix documentation of sysrq-q really Fix documentation of sysrq-q timer_list: add base address to clock base timer_list: print cpu number of clockevents device timer_list: print real timer address NOHZ: restart tick device from irq_enter() NOHZ: split tick_nohz_restart_sched_tick() NOHZ: unify the nohz function calls in irq_enter() timers: fix itimer/many thread hang, fix timers: fix itimer/many thread hang, v3 ntp: improve adjtimex frequency rounding timekeeping: fix rounding problem during clock update ntp: let update_persistent_clock() sleep hrtimer: reorder struct hrtimer to save 8 bytes on 64bit builds posix-timers: lock_timer: make it readable posix-timers: lock_timer: kill the bogus ->it_id check posix-timers: kill ->it_sigev_signo and ->it_sigev_value posix-timers: sys_timer_create: cleanup the error handling posix-timers: move the initialization of timer->sigq from send to create path posix-timers: sys_timer_create: simplify and s/tasklist/rcu/ ... Fix trivial conflicts due to sysrq-q description clahes in Documentation/sysrq.txt and drivers/char/sysrq.c
Diffstat (limited to 'include/linux/tick.h')
-rw-r--r--include/linux/tick.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 98921a3e1aa8..b6ec8189ac0c 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -96,9 +96,11 @@ extern cpumask_t *tick_get_broadcast_oneshot_mask(void);
96extern void tick_clock_notify(void); 96extern void tick_clock_notify(void);
97extern int tick_check_oneshot_change(int allow_nohz); 97extern int tick_check_oneshot_change(int allow_nohz);
98extern struct tick_sched *tick_get_tick_sched(int cpu); 98extern struct tick_sched *tick_get_tick_sched(int cpu);
99extern void tick_check_idle(int cpu);
99# else 100# else
100static inline void tick_clock_notify(void) { } 101static inline void tick_clock_notify(void) { }
101static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } 102static inline int tick_check_oneshot_change(int allow_nohz) { return 0; }
103static inline void tick_check_idle(int cpu) { }
102# endif 104# endif
103 105
104#else /* CONFIG_GENERIC_CLOCKEVENTS */ 106#else /* CONFIG_GENERIC_CLOCKEVENTS */
@@ -106,26 +108,23 @@ static inline void tick_init(void) { }
106static inline void tick_cancel_sched_timer(int cpu) { } 108static inline void tick_cancel_sched_timer(int cpu) { }
107static inline void tick_clock_notify(void) { } 109static inline void tick_clock_notify(void) { }
108static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } 110static inline int tick_check_oneshot_change(int allow_nohz) { return 0; }
111static inline void tick_check_idle(int cpu) { }
109#endif /* !CONFIG_GENERIC_CLOCKEVENTS */ 112#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
110 113
111# ifdef CONFIG_NO_HZ 114# ifdef CONFIG_NO_HZ
112extern void tick_nohz_stop_sched_tick(int inidle); 115extern void tick_nohz_stop_sched_tick(int inidle);
113extern void tick_nohz_restart_sched_tick(void); 116extern void tick_nohz_restart_sched_tick(void);
114extern void tick_nohz_update_jiffies(void);
115extern ktime_t tick_nohz_get_sleep_length(void); 117extern ktime_t tick_nohz_get_sleep_length(void);
116extern void tick_nohz_stop_idle(int cpu);
117extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time); 118extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time);
118# else 119# else
119static inline void tick_nohz_stop_sched_tick(int inidle) { } 120static inline void tick_nohz_stop_sched_tick(int inidle) { }
120static inline void tick_nohz_restart_sched_tick(void) { } 121static inline void tick_nohz_restart_sched_tick(void) { }
121static inline void tick_nohz_update_jiffies(void) { }
122static inline ktime_t tick_nohz_get_sleep_length(void) 122static inline ktime_t tick_nohz_get_sleep_length(void)
123{ 123{
124 ktime_t len = { .tv64 = NSEC_PER_SEC/HZ }; 124 ktime_t len = { .tv64 = NSEC_PER_SEC/HZ };
125 125
126 return len; 126 return len;
127} 127}
128static inline void tick_nohz_stop_idle(int cpu) { }
129static inline u64 get_cpu_idle_time_us(int cpu, u64 *unused) { return -1; } 128static inline u64 get_cpu_idle_time_us(int cpu, u64 *unused) { return -1; }
130# endif /* !NO_HZ */ 129# endif /* !NO_HZ */
131 130