提交 a2752549 编写于 作者: J john stultz 提交者: Linus Torvalds

[PATCH] time: rename clocksource functions

As suggested by Roman Zippel, change clocksource functions to use
clocksource_xyz rather then xyz_clocksource to avoid polluting the
namespace.
Signed-off-by: NJohn Stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 5d0cf410
......@@ -61,7 +61,7 @@ static int __init init_hpet_clocksource(void)
do_div(tmp, FSEC_PER_NSEC);
clocksource_hpet.mult = (u32)tmp;
return register_clocksource(&clocksource_hpet);
return clocksource_register(&clocksource_hpet);
}
module_init(init_hpet_clocksource);
......@@ -80,6 +80,6 @@ static int __init init_pit_clocksource(void)
return 0;
clocksource_pit.mult = clocksource_hz2mult(CLOCK_TICK_RATE, 20);
return register_clocksource(&clocksource_pit);
return clocksource_register(&clocksource_pit);
}
module_init(init_pit_clocksource);
......@@ -351,7 +351,7 @@ static int tsc_update_callback(void)
/* check to see if we should switch to the safe clocksource: */
if (clocksource_tsc.rating != 50 && check_tsc_unstable()) {
clocksource_tsc.rating = 50;
reselect_clocksource();
clocksource_reselect();
change = 1;
}
......@@ -469,7 +469,7 @@ static int __init init_tsc_clocksource(void)
jiffies + msecs_to_jiffies(TSC_FREQ_CHECK_INTERVAL);
add_timer(&verify_tsc_freq_timer);
return register_clocksource(&clocksource_tsc);
return clocksource_register(&clocksource_tsc);
}
return 0;
......
......@@ -171,7 +171,7 @@ static int __init init_acpi_pm_clocksource(void)
return -ENODEV;
pm_good:
return register_clocksource(&clocksource_acpi_pm);
return clocksource_register(&clocksource_acpi_pm);
}
module_init(init_acpi_pm_clocksource);
......@@ -113,7 +113,7 @@ static int __init init_cyclone_clocksource(void)
clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ,
clocksource_cyclone.shift);
return register_clocksource(&clocksource_cyclone);
return clocksource_register(&clocksource_cyclone);
}
module_init(init_cyclone_clocksource);
......@@ -118,12 +118,12 @@ static inline u32 clocksource_hz2mult(u32 hz, u32 shift_constant)
}
/**
* read_clocksource: - Access the clocksource's current cycle value
* clocksource_read: - Access the clocksource's current cycle value
* @cs: pointer to clocksource being read
*
* Uses the clocksource to return the current cycle_t value
*/
static inline cycle_t read_clocksource(struct clocksource *cs)
static inline cycle_t clocksource_read(struct clocksource *cs)
{
return cs->read();
}
......@@ -145,7 +145,7 @@ static inline s64 cyc2ns(struct clocksource *cs, cycle_t cycles)
}
/**
* calculate_clocksource_interval - Calculates a clocksource interval struct
* clocksource_calculate_interval - Calculates a clocksource interval struct
*
* @c: Pointer to clocksource.
* @length_nsec: Desired interval length in nanoseconds.
......@@ -155,7 +155,7 @@ static inline s64 cyc2ns(struct clocksource *cs, cycle_t cycles)
*
* Unless you're the timekeeping code, you should not be using this!
*/
static inline void calculate_clocksource_interval(struct clocksource *c,
static inline void clocksource_calculate_interval(struct clocksource *c,
unsigned long length_nsec)
{
u64 tmp;
......@@ -271,8 +271,8 @@ static inline s64 make_ntp_adj(struct clocksource *clock,
/* used to install a new clocksource */
int register_clocksource(struct clocksource*);
void reselect_clocksource(void);
struct clocksource* get_next_clocksource(void);
int clocksource_register(struct clocksource*);
void clocksource_reselect(void);
struct clocksource* clocksource_get_next(void);
#endif /* _LINUX_CLOCKSOURCE_H */
......@@ -65,10 +65,10 @@ static int __init clocksource_done_booting(void)
late_initcall(clocksource_done_booting);
/**
* get_next_clocksource - Returns the selected clocksource
* clocksource_get_next - Returns the selected clocksource
*
*/
struct clocksource *get_next_clocksource(void)
struct clocksource *clocksource_get_next(void)
{
unsigned long flags;
......@@ -142,12 +142,12 @@ static int is_registered_source(struct clocksource *c)
}
/**
* register_clocksource - Used to install new clocksources
* clocksource_register - Used to install new clocksources
* @t: clocksource to be registered
*
* Returns -EBUSY if registration fails, zero otherwise.
*/
int register_clocksource(struct clocksource *c)
int clocksource_register(struct clocksource *c)
{
int ret = 0;
unsigned long flags;
......@@ -167,17 +167,16 @@ int register_clocksource(struct clocksource *c)
spin_unlock_irqrestore(&clocksource_lock, flags);
return ret;
}
EXPORT_SYMBOL(register_clocksource);
EXPORT_SYMBOL(clocksource_register);
/**
* reselect_clocksource - Rescan list for next clocksource
* clocksource_reselect - Rescan list for next clocksource
*
* A quick helper function to be used if a clocksource changes its
* rating. Forces the clocksource list to be re-scanned for the best
* clocksource.
*/
void reselect_clocksource(void)
void clocksource_reselect(void)
{
unsigned long flags;
......@@ -185,6 +184,7 @@ void reselect_clocksource(void)
next_clocksource = select_clocksource();
spin_unlock_irqrestore(&clocksource_lock, flags);
}
EXPORT_SYMBOL(clocksource_reselect);
/**
* sysfs_show_current_clocksources - sysfs interface for current clocksource
......
......@@ -67,7 +67,7 @@ struct clocksource clocksource_jiffies = {
static int __init init_jiffies_clocksource(void)
{
return register_clocksource(&clocksource_jiffies);
return clocksource_register(&clocksource_jiffies);
}
module_init(init_jiffies_clocksource);
......@@ -810,7 +810,7 @@ static inline s64 __get_nsec_offset(void)
s64 ns_offset;
/* read clocksource: */
cycle_now = read_clocksource(clock);
cycle_now = clocksource_read(clock);
/* calculate the delta since the last update_wall_time: */
cycle_delta = (cycle_now - last_clock_cycle) & clock->mask;
......@@ -845,7 +845,7 @@ static inline void __get_realtime_clock_ts(struct timespec *ts)
}
/**
* get_realtime_clock_ts - Returns the time of day in a timespec
* getnstimeofday - Returns the time of day in a timespec
* @ts: pointer to the timespec to be set
*
* Returns the time of day in a timespec.
......@@ -920,9 +920,9 @@ static int change_clocksource(void)
struct clocksource *new;
cycle_t now;
u64 nsec;
new = get_next_clocksource();
new = clocksource_get_next();
if (clock != new) {
now = read_clocksource(new);
now = clocksource_read(new);
nsec = __get_nsec_offset();
timespec_add_ns(&xtime, nsec);
......@@ -966,9 +966,9 @@ void __init timekeeping_init(void)
unsigned long flags;
write_seqlock_irqsave(&xtime_lock, flags);
clock = get_next_clocksource();
calculate_clocksource_interval(clock, tick_nsec);
last_clock_cycle = read_clocksource(clock);
clock = clocksource_get_next();
clocksource_calculate_interval(clock, tick_nsec);
last_clock_cycle = clocksource_read(clock);
ntp_clear();
write_sequnlock_irqrestore(&xtime_lock, flags);
}
......@@ -988,7 +988,7 @@ static int timekeeping_resume(struct sys_device *dev)
write_seqlock_irqsave(&xtime_lock, flags);
/* restart the last cycle value */
last_clock_cycle = read_clocksource(clock);
last_clock_cycle = clocksource_read(clock);
write_sequnlock_irqrestore(&xtime_lock, flags);
return 0;
}
......@@ -1028,7 +1028,7 @@ static void update_wall_time(void)
snsecs_per_sec = (s64)NSEC_PER_SEC << clock->shift;
remainder_snsecs += (s64)xtime.tv_nsec << clock->shift;
now = read_clocksource(clock);
now = clocksource_read(clock);
offset = (now - last_clock_cycle)&clock->mask;
/* normally this loop will run just once, however in the
......@@ -1069,7 +1069,7 @@ static void update_wall_time(void)
if (change_clocksource()) {
error = 0;
remainder_snsecs = 0;
calculate_clocksource_interval(clock, tick_nsec);
clocksource_calculate_interval(clock, tick_nsec);
}
}
......
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