luck/tmp_suning_uos_patched
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[PATCH] kernel: fix-up schedule_timeout() usage

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Use schedule_timeout_{,un}interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Nishanth Aravamudan 2005-09-10 00:27:24 -07:00 committed by Linus Torvalds
parent 041e0e3b19
commit 75bcc8c5e1
3 changed files with 10 additions and 20 deletions
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9
kernel/compat.c
View File

@ -48,8 +48,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
if (!time_after(expire, now))
return 0;
current->state = TASK_INTERRUPTIBLE;
expire = schedule_timeout(expire - now);
expire = schedule_timeout_interruptible(expire - now);
if (expire == 0)
return 0;
@ -82,8 +81,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
return -EINVAL;
expire = timespec_to_jiffies(&t) + (t.tv_sec || t.tv_nsec);
current->state = TASK_INTERRUPTIBLE;
expire = schedule_timeout(expire);
expire = schedule_timeout_interruptible(expire);
if (expire == 0)
return 0;
@ -795,8 +793,7 @@ compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
current->state = TASK_INTERRUPTIBLE;
timeout = schedule_timeout(timeout);
timeout = schedule_timeout_interruptible(timeout);
spin_lock_irq(&current->sighand->siglock);
sig = dequeue_signal(current, &s, &info);

3
kernel/signal.c
View File

@ -2221,8 +2221,7 @@ sys_rt_sigtimedwait(const sigset_t __user *uthese,
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
current->state = TASK_INTERRUPTIBLE;
timeout = schedule_timeout(timeout);
timeout = schedule_timeout_interruptible(timeout);
try_to_freeze();
spin_lock_irq(&current->sighand->siglock);

18
kernel/timer.c
View File

@ -1184,8 +1184,7 @@ static long __sched nanosleep_restart(struct restart_block *restart)
if (!time_after(expire, now))
return 0;
current->state = TASK_INTERRUPTIBLE;
expire = schedule_timeout(expire - now);
expire = schedule_timeout_interruptible(expire - now);
ret = 0;
if (expire) {
@ -1213,8 +1212,7 @@ asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __us
return -EINVAL;
expire = timespec_to_jiffies(&t) + (t.tv_sec || t.tv_nsec);
current->state = TASK_INTERRUPTIBLE;
expire = schedule_timeout(expire);
expire = schedule_timeout_interruptible(expire);
ret = 0;
if (expire) {
@ -1612,10 +1610,8 @@ void msleep(unsigned int msecs)
{
unsigned long timeout = msecs_to_jiffies(msecs) + 1;
while (timeout) {
set_current_state(TASK_UNINTERRUPTIBLE);
timeout = schedule_timeout(timeout);
}
while (timeout)
timeout = schedule_timeout_uninterruptible(timeout);
}
EXPORT_SYMBOL(msleep);
@ -1628,10 +1624,8 @@ unsigned long msleep_interruptible(unsigned int msecs)
{
unsigned long timeout = msecs_to_jiffies(msecs) + 1;
while (timeout && !signal_pending(current)) {
set_current_state(TASK_INTERRUPTIBLE);
timeout = schedule_timeout(timeout);
}
while (timeout && !signal_pending(current))
timeout = schedule_timeout_interruptible(timeout);
return jiffies_to_msecs(timeout);
}