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From: janitor@sternwelten.at
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org, janitor@sternwelten.at
Subject: [patch 02/14]  mcd: replace schedule_timeout() with 	msleep()
Date: Thu, 02 Sep 2004 01:15:49 +0200	[thread overview]
Message-ID: <E1C2eKU-0002kr-6E@sputnik> (raw)







I would appreciate any comments from the janitor@sternweltens 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



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>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>



---

 linux-2.6.9-rc1-bk7-max/drivers/cdrom/mcd.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff -puN drivers/cdrom/mcd.c~msleep-drivers_cdrom_mcd drivers/cdrom/mcd.c
--- linux-2.6.9-rc1-bk7/drivers/cdrom/mcd.c~msleep-drivers_cdrom_mcd	2004-09-01 19:34:42.000000000 +0200
+++ linux-2.6.9-rc1-bk7-max/drivers/cdrom/mcd.c	2004-09-01 19:34:42.000000000 +0200
@@ -1021,10 +1021,9 @@ static int mcd_open(struct cdrom_device_
 		st = statusCmd();	/* check drive status */
 		if (st == -1)
 			goto err_out;	/* drive doesn't respond */
-		if ((st & MST_READY) == 0) {	/* no disk? wait a sec... */
-			current->state = TASK_INTERRUPTIBLE;
-			schedule_timeout(HZ);
-		}
+		if ((st & MST_READY) == 0) 	/* no disk? wait a sec... */
+			msleep(1000);
+
 	} while (((st & MST_READY) == 0) && count++ < MCD_RETRY_ATTEMPTS);
 
 	if (updateToc() < 0)

_

                 reply	other threads:[~2004-09-01 23:21 UTC|newest]

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