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[PATCH] drivers/char: fix-up schedule_timeout() usage

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Use schedule_timeout_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 00:27:30 -07:00 committed by Linus Torvalds
parent 2ddee1b7a7
commit da4cd8dfe1
6 changed files with 17 additions and 36 deletions
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6
drivers/char/ftape/lowlevel/fdc-io.c
View file

@ -387,10 +387,8 @@ int fdc_interrupt_wait(unsigned int time)
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&ftape_wait_intr, &wait);
while (!ft_interrupt_seen && timeout) {
set_current_state(TASK_INTERRUPTIBLE);
timeout = schedule_timeout(timeout);
}
while (!ft_interrupt_seen && timeout)
timeout = schedule_timeout_interruptible(timeout);
spin_lock_irq(&current->sighand->siglock);
current->blocked = old_sigmask;

5
drivers/char/hw_random.c
View file

@ -513,10 +513,7 @@ static ssize_t rng_dev_read (struct file *filp, char __user *buf, size_t size,
return ret ? : -EAGAIN;
if(need_resched())
{
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(1);
}
schedule_timeout_interruptible(1);
else
udelay(200); /* FIXME: We could poll for 250uS ?? */

6
drivers/char/ip2/i2lib.c
View file

@ -655,8 +655,7 @@ i2QueueCommands(int type, i2ChanStrPtr pCh, int timeout, int nCommands,
timeout--; // So negative values == forever
if (!in_interrupt()) {
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(1); // short nap
schedule_timeout_interruptible(1); // short nap
} else {
// we cannot sched/sleep in interrrupt silly
return 0;
@ -1132,8 +1131,7 @@ i2Output(i2ChanStrPtr pCh, const char *pSource, int count, int user )
ip2trace (CHANN, ITRC_OUTPUT, 61, 0 );
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(2);
schedule_timeout_interruptible(2);
if (signal_pending(current)) {
break;
}

18
drivers/char/ipmi/ipmi_si_intf.c
View file

@ -1920,8 +1920,7 @@ static int try_get_dev_id(struct smi_info *smi_info)
for (;;)
{
if (smi_result == SI_SM_CALL_WITH_DELAY) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
schedule_timeout_uninterruptible(1);
smi_result = smi_info->handlers->event(
smi_info->si_sm, 100);
}
@ -2256,10 +2255,8 @@ static int init_one_smi(int intf_num, struct smi_info **smi)
/* Wait for the timer to stop. This avoids problems with race
conditions removing the timer here. */
while (! new_smi->timer_stopped) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
}
while (!new_smi->timer_stopped)
schedule_timeout_uninterruptible(1);
out_err:
if (new_smi->intf)
@ -2379,17 +2376,14 @@ static void __exit cleanup_one_si(struct smi_info *to_clean)
/* Wait for the timer to stop. This avoids problems with race
conditions removing the timer here. */
while (! to_clean->timer_stopped) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
}
while (!to_clean->timer_stopped)
schedule_timeout_uninterruptible(1);
/* Interrupts and timeouts are stopped, now make sure the
interface is in a clean state. */
while (to_clean->curr_msg || (to_clean->si_state != SI_NORMAL)) {
poll(to_clean);
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
schedule_timeout_uninterruptible(1);
}
rv = ipmi_unregister_smi(to_clean->intf);

6
drivers/char/ipmi/ipmi_watchdog.c
View file

@ -1037,10 +1037,8 @@ static __exit void ipmi_unregister_watchdog(void)
/* Wait to make sure the message makes it out. The lower layer has
pointers to our buffers, we want to make sure they are done before
we release our memory. */
while (atomic_read(&set_timeout_tofree)) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
}
while (atomic_read(&set_timeout_tofree))
schedule_timeout_uninterruptible(1);
/* Disconnect from IPMI. */
rv = ipmi_destroy_user(watchdog_user);

12
drivers/char/mxser.c
View file

@ -1058,8 +1058,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
*/
timeout = jiffies + HZ;
while (!(inb(info->base + UART_LSR) & UART_LSR_TEMT)) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(5);
schedule_timeout_interruptible(5);
if (time_after(jiffies, timeout))
break;
}
@ -1080,10 +1079,8 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
info->event = 0;
info->tty = NULL;
if (info->blocked_open) {
if (info->close_delay) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(info->close_delay);
}
if (info->close_delay)
schedule_timeout_interruptible(info->close_delay);
wake_up_interruptible(&info->open_wait);
}
@ -1801,8 +1798,7 @@ static void mxser_wait_until_sent(struct tty_struct *tty, int timeout)
#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
printk("lsr = %d (jiff=%lu)...", lsr, jiffies);
#endif
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(char_time);
schedule_timeout_interruptible(char_time);
if (signal_pending(current))
break;
if (timeout && time_after(jiffies, orig_jiffies + timeout))