Re: [PATCH] Staircase Scheduler v6.3 for 2.6.7-rc2

[William Lee Irwin III <wli@holomorphy.com>]

On Mon, Jun 07, 2004 at 06:57:38AM -0700, William Lee Irwin III wrote:
> JIFFIES_TO_NS() is unused.

array->nr_active only ever modified, never examined.


Index: kolivas-2.6.7-rc2/kernel/sched.c
===================================================================
--- kolivas-2.6.7-rc2.orig/kernel/sched.c	2004-06-07 06:53:26.779390000 -0700
+++ kolivas-2.6.7-rc2/kernel/sched.c	2004-06-07 07:03:00.910109000 -0700
@@ -92,7 +92,6 @@
 typedef struct runqueue runqueue_t;
 
 struct prio_array {
-	unsigned int nr_active;
 	unsigned long bitmap[BITMAP_SIZE];
 	struct list_head queue[MAX_PRIO + 1];
 };
@@ -204,7 +203,6 @@
 static void dequeue_task(struct task_struct *p, runqueue_t *rq)
 {
 	prio_array_t* array = &rq->array;
-	array->nr_active--;
 	list_del(&p->run_list);
 	if (list_empty(array->queue + p->prio))
 		__clear_bit(p->prio, array->bitmap);
@@ -215,7 +213,6 @@
 	prio_array_t* array = &rq->array;
 	list_add_tail(&p->run_list, array->queue + p->prio);
 	__set_bit(p->prio, array->bitmap);
-	array->nr_active++;
 	p->array = array;
 }
 
@@ -229,7 +226,6 @@
 	prio_array_t* array = &rq->array;
 	list_add(&p->run_list, array->queue + p->prio);
 	__set_bit(p->prio, array->bitmap);
-	array->nr_active++;
 	p->array = array;
 }
 
@@ -1095,7 +1091,6 @@
 			p->prio = current->prio;
 			list_add_tail(&p->run_list, &current->run_list);
 			p->array = current->array;
-			p->array->nr_active++;
 			rq->nr_running++;
 		}
 	} else {