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[Kernel-janitors] [PATCH] md: replace schedule_timeout() with msleep(): msg#00259

Subject: [Kernel-janitors] [PATCH] md: replace schedule_timeout() with msleep()
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: Use schedule_timeout() instead of msleep() to guarantee the
task delays the desired time.

Signed-off-by: Nishanth Aravamudan <nacc@xxxxxxxxxx>


--- linux-vanilla/drivers/md/md.c       2004-06-16 05:19:03.000000000 +0000
+++ linux-dev/drivers/md/md.c   2004-07-12 18:47:53.000000000 +0000
@@ -3438,8 +3438,7 @@ static void md_do_sync(mddev_t *mddev)
                if (currspeed > sysctl_speed_limit_min) {
                        if ((currspeed > sysctl_speed_limit_max) ||
                                        !is_mddev_idle(mddev)) {
-                               current->state = TASK_INTERRUPTIBLE;
-                               schedule_timeout(HZ/4);
+                               msleep(250);
                                goto repeat;
                        }
                }
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