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* [Kernel-janitors] [PATCH] bluetooth: replace schedule_timeout()
@ 2004-07-20 18:18 Nishanth Aravamudan
  2004-07-20 18:20 ` Nishanth Aravamudan
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: Nishanth Aravamudan @ 2004-07-20 18:18 UTC (permalink / raw)
  To: kernel-janitors

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I would appreciate any comments from the janitors list. This is one (of
many) cases where I made a decision about replacing

set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(some_time);

with

msleep(jiffies_to_msecs(some_time));

msleep() is not exactly the same as the previous code, but I only did
this replacement where I thought long delays were *desired*. If this is
not the case here, then just disregard this patch.

Thanks,
Nish



Applys-to: 2.6.7

Description: Uses msleep() instead of schedule_timeout() to guarantee
the task delays at least the desired time amount.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>


--- linux-vanilla/drivers/bluetooth/bluecard_cs.c	2004-06-16 05:19:22.000000000 +0000
+++ linux-dev/drivers/bluetooth/bluecard_cs.c	2004-07-10 18:22:58.000000000 +0000
@@ -776,8 +776,7 @@ int bluecard_open(bluecard_info_t *info)
 	outb(0x80, iobase + 0x30);
 
 	/* Wait some time */
-	set_current_state(TASK_INTERRUPTIBLE);
-	schedule_timeout(HZ / 100);
+	msleep(100);
 
 	/* Turn FPGA on */
 	outb(0x00, iobase + 0x30);
@@ -823,8 +822,7 @@ int bluecard_open(bluecard_info_t *info)
 	outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
 
 	/* Timeout before it is safe to send the first HCI packet */
-	set_current_state(TASK_INTERRUPTIBLE);
-	schedule_timeout((HZ * 5) / 4);		// or set it to 3/2
+	msleep(1250);
 
 	/* Register HCI device */
 	if (hci_register_dev(hdev) < 0) {

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^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2004-07-21 21:18 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-07-20 18:18 [Kernel-janitors] [PATCH] bluetooth: replace schedule_timeout() Nishanth Aravamudan
2004-07-20 18:20 ` Nishanth Aravamudan
2004-07-20 18:20 ` Nishanth Aravamudan
2004-07-20 18:21 ` Nishanth Aravamudan
2004-07-21 21:13 ` [Kernel-janitors] [PATCH] bluetooth: replace schedule_timeout() with Nishanth Aravamudan
2004-07-21 21:16 ` Nishanth Aravamudan
2004-07-21 21:18 ` Nishanth Aravamudan

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