[PATCH] O(1) scheduler unlock_task_rq

From: Robert Love (rml@tech9.net)
Date: Sun Jan 20 2002 - 18:50:52 EST


In Ingo's new O(1) scheduler, unlock_task_rq takes a pointless argument
(task_t * p).

This patch, against 2.5.3-pre2 + J2, removes the argument and fixes all
known uses of the function.

        Robert Love


--- linux-2.5.3-pre2-ingo-J2/kernel/sched.c Sun Jan 20 18:35:58 2002
+++ linux/kernel/sched.c Sun Jan 20 18:36:59 2002
@@ -70,11 +70,11 @@
         return __rq;
 }
 
-static inline void unlock_task_rq(runqueue_t *rq, task_t *p,
- unsigned long *flags)
+static inline void unlock_task_rq(runqueue_t *rq, unsigned long *flags)
 {
         spin_unlock_irqrestore(&rq->lock, *flags);
 }
+
 /*
  * Adding/removing a task to/from a priority array:
  */
@@ -202,10 +202,10 @@
         }
         rq = lock_task_rq(p, &flags);
         if (unlikely(rq->curr == p)) {
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
                 goto repeat;
         }
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
 }
 
 /*
@@ -260,7 +260,7 @@
                         resched_task(rq->curr);
                 success = 1;
         }
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
         return success;
 }
 
@@ -639,7 +639,6 @@
         spin_unlock_irq(&rq->lock);
 
         reacquire_kernel_lock(current);
- return;
 }
 
 /*
@@ -846,7 +845,7 @@
                         resched_task(rq->curr);
         }
 out_unlock:
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
 }
 
 #ifndef __alpha__
@@ -966,7 +965,7 @@
                 activate_task(p, task_rq(p));
 
 out_unlock:
- unlock_task_rq(rq, p, &flags);
+ unlock_task_rq(rq, &flags);
 out_unlock_tasklist:
         read_unlock_irq(&tasklist_lock);
 

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed Jan 23 2002 - 21:00:40 EST