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time: fix typo in comments

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Fix typo in comments.

BTW: I have to fix coding style in arch/ia64/kernel/time.c also, otherwise
checkpatch.pl will be complaining.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
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:
Li Zefan 2008-02-08 04:19:25 -08:00 committed by Linus Torvalds
parent cf4fc6cb76
commit 3eb056764d
7 changed files with 16 additions and 16 deletions
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14
arch/ia64/kernel/time.c
View file

@ -49,13 +49,13 @@ EXPORT_SYMBOL(last_cli_ip);
#endif #endif
static struct clocksource clocksource_itc = { static struct clocksource clocksource_itc = {
.name = "itc", .name = "itc",
.rating = 350, .rating = 350,
.read = itc_get_cycles, .read = itc_get_cycles,
.mask = CLOCKSOURCE_MASK(64), .mask = CLOCKSOURCE_MASK(64),
.mult = 0, /*to be caluclated*/ .mult = 0, /*to be calculated*/
.shift = 16, .shift = 16,
.flags = CLOCK_SOURCE_IS_CONTINUOUS, .flags = CLOCK_SOURCE_IS_CONTINUOUS,
}; };
static struct clocksource *itc_clocksource; static struct clocksource *itc_clocksource;

2
arch/x86/kernel/time_64.c
View file

@ -77,7 +77,7 @@ unsigned long __init native_calculate_cpu_khz(void)
reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i); reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i);
} }
local_irq_save(flags); local_irq_save(flags);
/* start meauring cycles, incrementing from 0 */ /* start measuring cycles, incrementing from 0 */
wrmsrl(MSR_K7_PERFCTR0 + i, 0); wrmsrl(MSR_K7_PERFCTR0 + i, 0);
wrmsrl(MSR_K7_EVNTSEL0 + i, 1 << 22 | 3 << 16 | 0x76); wrmsrl(MSR_K7_EVNTSEL0 + i, 1 << 22 | 3 << 16 | 0x76);
rdtscl(tsc_start); rdtscl(tsc_start);

2
include/linux/hrtimer.h
View file

@ -78,7 +78,7 @@ enum hrtimer_cb_mode {
* as otherwise the timer could be removed before the softirq code finishes the * as otherwise the timer could be removed before the softirq code finishes the
* the handling of the timer. * the handling of the timer.
* *
* The HRTIMER_STATE_ENQUEUE bit is always or'ed to the current state to * The HRTIMER_STATE_ENQUEUED bit is always or'ed to the current state to
* preserve the HRTIMER_STATE_CALLBACK bit in the above scenario. * preserve the HRTIMER_STATE_CALLBACK bit in the above scenario.
* *
* All state transitions are protected by cpu_base->lock. * All state transitions are protected by cpu_base->lock.

6
include/linux/jiffies.h
View file

@ -42,7 +42,7 @@
/* LATCH is used in the interval timer and ftape setup. */ /* LATCH is used in the interval timer and ftape setup. */
#define LATCH ((CLOCK_TICK_RATE + HZ/2) / HZ) /* For divider */ #define LATCH ((CLOCK_TICK_RATE + HZ/2) / HZ) /* For divider */
/* Suppose we want to devide two numbers NOM and DEN: NOM/DEN, the we can /* Suppose we want to devide two numbers NOM and DEN: NOM/DEN, then we can
* improve accuracy by shifting LSH bits, hence calculating: * improve accuracy by shifting LSH bits, hence calculating:
* (NOM << LSH) / DEN * (NOM << LSH) / DEN
* This however means trouble for large NOM, because (NOM << LSH) may no * This however means trouble for large NOM, because (NOM << LSH) may no
@ -160,7 +160,7 @@ extern unsigned long preset_lpj;
* We want to do realistic conversions of time so we need to use the same * We want to do realistic conversions of time so we need to use the same
* values the update wall clock code uses as the jiffies size. This value * values the update wall clock code uses as the jiffies size. This value
* is: TICK_NSEC (which is defined in timex.h). This * is: TICK_NSEC (which is defined in timex.h). This
* is a constant and is in nanoseconds. We will used scaled math * is a constant and is in nanoseconds. We will use scaled math
* with a set of scales defined here as SEC_JIFFIE_SC, USEC_JIFFIE_SC and * with a set of scales defined here as SEC_JIFFIE_SC, USEC_JIFFIE_SC and
* NSEC_JIFFIE_SC. Note that these defines contain nothing but * NSEC_JIFFIE_SC. Note that these defines contain nothing but
* constants and so are computed at compile time. SHIFT_HZ (computed in * constants and so are computed at compile time. SHIFT_HZ (computed in
@ -204,7 +204,7 @@ extern unsigned long preset_lpj;
* operator if the result is a long long AND at least one of the * operator if the result is a long long AND at least one of the
* operands is cast to long long (usually just prior to the "*" so as * operands is cast to long long (usually just prior to the "*" so as
* not to confuse it into thinking it really has a 64-bit operand, * not to confuse it into thinking it really has a 64-bit operand,
* which, buy the way, it can do, but it take more code and at least 2 * which, buy the way, it can do, but it takes more code and at least 2
* mpys). * mpys).
* We also need to be aware that one second in nanoseconds is only a * We also need to be aware that one second in nanoseconds is only a

4
kernel/time.c
View file

@ -267,7 +267,7 @@ EXPORT_SYMBOL(jiffies_to_usecs);
* *
* This function should be only used for timestamps returned by * This function should be only used for timestamps returned by
* current_kernel_time() or CURRENT_TIME, not with do_gettimeofday() because * current_kernel_time() or CURRENT_TIME, not with do_gettimeofday() because
* it doesn't handle the better resolution of the later. * it doesn't handle the better resolution of the latter.
*/ */
struct timespec timespec_trunc(struct timespec t, unsigned gran) struct timespec timespec_trunc(struct timespec t, unsigned gran)
{ {
@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(getnstimeofday);
* This algorithm was first published by Gauss (I think). * This algorithm was first published by Gauss (I think).
* *
* WARNING: this function will overflow on 2106-02-07 06:28:16 on * WARNING: this function will overflow on 2106-02-07 06:28:16 on
* machines were long is 32-bit! (However, as time_t is signed, we * machines where long is 32-bit! (However, as time_t is signed, we
* will already get problems at other places on 2038-01-19 03:14:08) * will already get problems at other places on 2038-01-19 03:14:08)
*/ */
unsigned long unsigned long

2
kernel/time/clockevents.c
View file

@ -133,7 +133,7 @@ static void clockevents_do_notify(unsigned long reason, void *dev)
} }
/* /*
* Called after a notify add to make devices availble which were * Called after a notify add to make devices available which were
* released from the notifier call. * released from the notifier call.
*/ */
static void clockevents_notify_released(void) static void clockevents_notify_released(void)

2
kernel/time/timekeeping.c
View file

@ -364,7 +364,7 @@ static __always_inline int clocksource_bigadjust(s64 error, s64 *interval,
* with losing too many ticks, otherwise we would overadjust and * with losing too many ticks, otherwise we would overadjust and
* produce an even larger error. The smaller the adjustment the * produce an even larger error. The smaller the adjustment the
* faster we try to adjust for it, as lost ticks can do less harm * faster we try to adjust for it, as lost ticks can do less harm
* here. This is tuned so that an error of about 1 msec is adusted * here. This is tuned so that an error of about 1 msec is adjusted
* within about 1 sec (or 2^20 nsec in 2^SHIFT_HZ ticks). * within about 1 sec (or 2^20 nsec in 2^SHIFT_HZ ticks).
*/ */
error2 = clock->error >> (TICK_LENGTH_SHIFT + 22 - 2 * SHIFT_HZ); error2 = clock->error >> (TICK_LENGTH_SHIFT + 22 - 2 * SHIFT_HZ);