const int cpu = smp_processor_id();
t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
- t->time = sched_clock() - per_cpu(blk_trace_cpu_offset, cpu);
+ t->time = cpu_clock(cpu) - per_cpu(blk_trace_cpu_offset, cpu);
t->device = bt->dev;
t->action = action;
t->pid = pid;
t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
t->sequence = ++(*sequence);
- t->time = sched_clock() - per_cpu(blk_trace_cpu_offset, cpu);
+ t->time = cpu_clock(cpu) - per_cpu(blk_trace_cpu_offset, cpu);
t->sector = sector;
t->bytes = bytes;
t->action = what;
kfree(bt);
}
-static int blk_trace_remove(request_queue_t *q)
+static int blk_trace_remove(struct request_queue *q)
{
struct blk_trace *bt;
/*
* Setup everything required to start tracing
*/
-static int blk_trace_setup(request_queue_t *q, struct block_device *bdev,
+static int blk_trace_setup(struct request_queue *q, struct block_device *bdev,
char __user *arg)
{
struct blk_user_trace_setup buts;
return ret;
}
-static int blk_trace_startstop(request_queue_t *q, int start)
+static int blk_trace_startstop(struct request_queue *q, int start)
{
struct blk_trace *bt;
int ret;
**/
int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
{
- request_queue_t *q;
+ struct request_queue *q;
int ret, start = 0;
q = bdev_get_queue(bdev);
* @q: the request queue associated with the device
*
**/
-void blk_trace_shutdown(request_queue_t *q)
+void blk_trace_shutdown(struct request_queue *q)
{
if (q->blk_trace) {
blk_trace_startstop(q, 0);
}
/*
- * Average offset over two calls to sched_clock() with a gettimeofday()
+ * Average offset over two calls to cpu_clock() with a gettimeofday()
* in the middle
*/
-static void blk_check_time(unsigned long long *t)
+static void blk_check_time(unsigned long long *t, int this_cpu)
{
unsigned long long a, b;
struct timeval tv;
- a = sched_clock();
+ a = cpu_clock(this_cpu);
do_gettimeofday(&tv);
- b = sched_clock();
+ b = cpu_clock(this_cpu);
*t = tv.tv_sec * 1000000000 + tv.tv_usec * 1000;
*t -= (a + b) / 2;
static void blk_trace_check_cpu_time(void *data)
{
unsigned long long *t;
- int cpu = get_cpu();
+ int this_cpu = get_cpu();
- t = &per_cpu(blk_trace_cpu_offset, cpu);
+ t = &per_cpu(blk_trace_cpu_offset, this_cpu);
/*
* Just call it twice, hopefully the second call will be cache hot
* and a little more precise
*/
- blk_check_time(t);
- blk_check_time(t);
+ blk_check_time(t, this_cpu);
+ blk_check_time(t, this_cpu);
put_cpu();
}