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* [Kernel-janitors] [PATCH] cciss: replace schedule_timeout() with
@ 2004-07-19 21:38 Nishanth Aravamudan
  0 siblings, 0 replies; only message in thread
From: Nishanth Aravamudan @ 2004-07-19 21:38 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/block/cciss.c	2004-06-16 05:20:04.000000000 +0000
+++ linux-dev/drivers/block/cciss.c	2004-07-10 18:19:33.000000000 +0000
@@ -2242,8 +2242,7 @@ static int cciss_pci_init(ctlr_info_t *c
 		scratchpad = readl(c->vaddr + SA5_SCRATCHPAD_OFFSET);
 		if (scratchpad == CCISS_FIRMWARE_READY)
 			break;
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(HZ / 10); /* wait 100ms */
+		msleep(100);
 	}
 	if (scratchpad != CCISS_FIRMWARE_READY) {
 		printk(KERN_WARNING "cciss: Board not ready.  Timed out.\n");

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2004-07-19 21:38 [Kernel-janitors] [PATCH] cciss: replace schedule_timeout() with Nishanth Aravamudan

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