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[PATCH] hrtimers: namespace and enum cleanup

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- hrtimers did not use the hrtimer_restart enum and relied on the implict
  int representation. Fix the prototypes and the functions using the enums.
- Use seperate name spaces for the enumerations
- Convert hrtimer_restart macro to inline function
- Add comments

No functional changes.

[akpm@osdl.org: fix input driver]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Thomas Gleixner
2007-02-16 01:27:49 -08:00
committed by Linus Torvalds
parent fd064b9b77
commit c9cb2e3d7c
9 changed files with 40 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/fork.c
+1 -1
View File
@@ -858,7 +858,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
init_sigpending(&sig->shared_pending);
INIT_LIST_HEAD(&sig->posix_timers);
hrtimer_init(&sig->real_timer, CLOCK_MONOTONIC, HRTIMER_REL);
hrtimer_init(&sig->real_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
sig->it_real_incr.tv64 = 0;
sig->real_timer.function = it_real_fn;
sig->tsk = tsk;
kernel/futex.c
+1 -1
View File
@@ -1134,7 +1134,7 @@ static int futex_lock_pi(u32 __user *uaddr, int detect, unsigned long sec,
if (sec != MAX_SCHEDULE_TIMEOUT) {
to = &timeout;
hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_ABS);
hrtimer_init(&to->timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
hrtimer_init_sleeper(to, current);
to->timer.expires = ktime_set(sec, nsec);
}
kernel/hrtimer.c
+9 -9
View File
@@ -444,7 +444,7 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode)
/* Switch the timer base, if necessary: */
new_base = switch_hrtimer_base(timer, base);
if (mode == HRTIMER_REL) {
if (mode == HRTIMER_MODE_REL) {
tim = ktime_add(tim, new_base->get_time());
/*
* CONFIG_TIME_LOW_RES is a temporary way for architectures
@@ -583,7 +583,7 @@ void hrtimer_init(struct hrtimer *timer, clockid_t clock_id,
bases = __raw_get_cpu_var(hrtimer_bases);
if (clock_id == CLOCK_REALTIME && mode != HRTIMER_ABS)
if (clock_id == CLOCK_REALTIME && mode != HRTIMER_MODE_ABS)
clock_id = CLOCK_MONOTONIC;
timer->base = &bases[clock_id];
@@ -627,7 +627,7 @@ static inline void run_hrtimer_queue(struct hrtimer_base *base)
while ((node = base->first)) {
struct hrtimer *timer;
int (*fn)(struct hrtimer *);
enum hrtimer_restart (*fn)(struct hrtimer *);
int restart;
timer = rb_entry(node, struct hrtimer, node);
@@ -669,7 +669,7 @@ void hrtimer_run_queues(void)
/*
* Sleep related functions:
*/
static int hrtimer_wakeup(struct hrtimer *timer)
static enum hrtimer_restart hrtimer_wakeup(struct hrtimer *timer)
{
struct hrtimer_sleeper *t =
container_of(timer, struct hrtimer_sleeper, timer);
@@ -699,7 +699,7 @@ static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mod
schedule();
hrtimer_cancel(&t->timer);
mode = HRTIMER_ABS;
mode = HRTIMER_MODE_ABS;
} while (t->task && !signal_pending(current));
@@ -715,10 +715,10 @@ long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
restart->fn = do_no_restart_syscall;
hrtimer_init(&t.timer, restart->arg0, HRTIMER_ABS);
hrtimer_init(&t.timer, restart->arg0, HRTIMER_MODE_ABS);
t.timer.expires.tv64 = ((u64)restart->arg3 << 32) | (u64) restart->arg2;
if (do_nanosleep(&t, HRTIMER_ABS))
if (do_nanosleep(&t, HRTIMER_MODE_ABS))
return 0;
rmtp = (struct timespec __user *) restart->arg1;
@@ -751,7 +751,7 @@ long hrtimer_nanosleep(struct timespec *rqtp, struct timespec __user *rmtp,
return 0;
/* Absolute timers do not update the rmtp value and restart: */
if (mode == HRTIMER_ABS)
if (mode == HRTIMER_MODE_ABS)
return -ERESTARTNOHAND;
if (rmtp) {
@@ -784,7 +784,7 @@ sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp)
if (!timespec_valid(&tu))
return -EINVAL;
return hrtimer_nanosleep(&tu, rmtp, HRTIMER_REL, CLOCK_MONOTONIC);
return hrtimer_nanosleep(&tu, rmtp, HRTIMER_MODE_REL, CLOCK_MONOTONIC);
}
/*
kernel/itimer.c
+2 -2
View File
@@ -128,7 +128,7 @@ asmlinkage long sys_getitimer(int which, struct itimerval __user *value)
/*
* The timer is automagically restarted, when interval != 0
*/
int it_real_fn(struct hrtimer *timer)
enum hrtimer_restart it_real_fn(struct hrtimer *timer)
{
struct signal_struct *sig =
container_of(timer, struct signal_struct, real_timer);
@@ -235,7 +235,7 @@ again:
timeval_to_ktime(value->it_interval);
expires = timeval_to_ktime(value->it_value);
if (expires.tv64 != 0)
hrtimer_start(timer, expires, HRTIMER_REL);
hrtimer_start(timer, expires, HRTIMER_MODE_REL);
spin_unlock_irq(&tsk->sighand->siglock);
break;
case ITIMER_VIRTUAL:
kernel/posix-timers.c
+7 -6
View File
@@ -145,7 +145,7 @@ static int common_timer_set(struct k_itimer *, int,
struct itimerspec *, struct itimerspec *);
static int common_timer_del(struct k_itimer *timer);
static int posix_timer_fn(struct hrtimer *data);
static enum hrtimer_restart posix_timer_fn(struct hrtimer *data);
static struct k_itimer *lock_timer(timer_t timer_id, unsigned long *flags);
@@ -334,12 +334,12 @@ EXPORT_SYMBOL_GPL(posix_timer_event);
* This code is for CLOCK_REALTIME* and CLOCK_MONOTONIC* timers.
*/
static int posix_timer_fn(struct hrtimer *timer)
static enum hrtimer_restart posix_timer_fn(struct hrtimer *timer)
{
struct k_itimer *timr;
unsigned long flags;
int si_private = 0;
int ret = HRTIMER_NORESTART;
enum hrtimer_restart ret = HRTIMER_NORESTART;
timr = container_of(timer, struct k_itimer, it.real.timer);
spin_lock_irqsave(&timr->it_lock, flags);
@@ -722,7 +722,7 @@ common_timer_set(struct k_itimer *timr, int flags,
if (!new_setting->it_value.tv_sec && !new_setting->it_value.tv_nsec)
return 0;
mode = flags & TIMER_ABSTIME ? HRTIMER_ABS : HRTIMER_REL;
mode = flags & TIMER_ABSTIME ? HRTIMER_MODE_ABS : HRTIMER_MODE_REL;
hrtimer_init(&timr->it.real.timer, timr->it_clock, mode);
timr->it.real.timer.function = posix_timer_fn;
@@ -734,7 +734,7 @@ common_timer_set(struct k_itimer *timr, int flags,
/* SIGEV_NONE timers are not queued ! See common_timer_get */
if (((timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE)) {
/* Setup correct expiry time for relative timers */
if (mode == HRTIMER_REL)
if (mode == HRTIMER_MODE_REL)
timer->expires = ktime_add(timer->expires,
timer->base->get_time());
return 0;
@@ -950,7 +950,8 @@ static int common_nsleep(const clockid_t which_clock, int flags,
struct timespec *tsave, struct timespec __user *rmtp)
{
return hrtimer_nanosleep(tsave, rmtp, flags & TIMER_ABSTIME ?
HRTIMER_ABS : HRTIMER_REL, which_clock);
HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
which_clock);
}
asmlinkage long
kernel/rtmutex.c
+1 -1
View File
@@ -625,7 +625,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
/* Setup the timer, when timeout != NULL */
if (unlikely(timeout))
hrtimer_start(&timeout->timer, timeout->timer.expires,
HRTIMER_ABS);
HRTIMER_MODE_ABS);
for (;;) {
/* Try to acquire the lock: */