md: replace schedule_timeout() with

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.

@@ -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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