From: Nishanth Aravamudan <nacc@us.ibm.com>
To: kernel-janitors@vger.kernel.org
Subject: [Kernel-janitors] [PATCH 2.6.9-rc2 6/6] serial/serial_core: replace
Date: Mon, 27 Sep 2004 21:28:09 +0000 [thread overview]
Message-ID: <20040927212809.GG1617@us.ibm.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1557 bytes --]
Any comments would be appreciated.
Description: Use msleep()/msleep_interruptible() [as appropriate]
instead of schedule_timeout() to guarantee the task delays
as expected.
--- 2.6.9-rc2-vanilla/drivers/serial/serial_core.c 2004-09-13 17:15:52.000000000 -0700
+++ 2.6.9-rc2/drivers/serial/serial_core.c 2004-09-14 10:19:22.000000000 -0700
@@ -32,6 +32,7 @@
#include <linux/smp_lock.h>
#include <linux/device.h>
#include <linux/serial.h> /* for serial_state and serial_icounter_struct */
+#include <linux/delay.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
@@ -1287,8 +1288,7 @@ static void uart_close(struct tty_struct
if (state->info->blocked_open) {
if (state->close_delay) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(state->close_delay);
+ msleep_interruptible(jiffies_to_msecs(state->close_delay));
}
} else if (!uart_console(port)) {
uart_change_pm(state, 3);
@@ -1353,8 +1353,7 @@ static void uart_wait_until_sent(struct
* we wait.
*/
while (!port->ops->tx_empty(port)) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(char_time);
+ msleep_interruptible(jiffies_to_msecs(char_time));
if (signal_pending(current))
break;
if (time_after(jiffies, expire))
@@ -1911,10 +1910,8 @@ int uart_suspend_port(struct uart_driver
* Wait for the transmitter to empty.
*/
while (!ops->tx_empty(port)) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(10*HZ/1000);
+ msleep(10);
}
- set_current_state(TASK_RUNNING);
ops->shutdown(port);
}
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