mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
taprio: calculate cycle_time when schedule is installed
cycle time for a particular schedule is calculated only when it is first installed. So, it makes sense to just calculate it once right after the 'cycle_time' parameter has been parsed and store it in cycle_time. Signed-off-by: Vedang Patel <vedang.patel@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
d14d2b2068
commit
037be03740
@ -108,22 +108,6 @@ static void switch_schedules(struct taprio_sched *q,
|
||||
*admin = NULL;
|
||||
}
|
||||
|
||||
static ktime_t get_cycle_time(struct sched_gate_list *sched)
|
||||
{
|
||||
struct sched_entry *entry;
|
||||
ktime_t cycle = 0;
|
||||
|
||||
if (sched->cycle_time != 0)
|
||||
return sched->cycle_time;
|
||||
|
||||
list_for_each_entry(entry, &sched->entries, list)
|
||||
cycle = ktime_add_ns(cycle, entry->interval);
|
||||
|
||||
sched->cycle_time = cycle;
|
||||
|
||||
return cycle;
|
||||
}
|
||||
|
||||
static int taprio_enqueue(struct sk_buff *skb, struct Qdisc *sch,
|
||||
struct sk_buff **to_free)
|
||||
{
|
||||
@ -524,6 +508,15 @@ static int parse_taprio_schedule(struct nlattr **tb,
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
if (!new->cycle_time) {
|
||||
struct sched_entry *entry;
|
||||
ktime_t cycle = 0;
|
||||
|
||||
list_for_each_entry(entry, &new->entries, list)
|
||||
cycle = ktime_add_ns(cycle, entry->interval);
|
||||
new->cycle_time = cycle;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -605,7 +598,7 @@ static int taprio_get_start_time(struct Qdisc *sch,
|
||||
return 0;
|
||||
}
|
||||
|
||||
cycle = get_cycle_time(sched);
|
||||
cycle = sched->cycle_time;
|
||||
|
||||
/* The qdisc is expected to have at least one sched_entry. Moreover,
|
||||
* any entry must have 'interval' > 0. Thus if the cycle time is zero,
|
||||
@ -632,7 +625,7 @@ static void setup_first_close_time(struct taprio_sched *q,
|
||||
first = list_first_entry(&sched->entries,
|
||||
struct sched_entry, list);
|
||||
|
||||
cycle = get_cycle_time(sched);
|
||||
cycle = sched->cycle_time;
|
||||
|
||||
/* FIXME: find a better place to do this */
|
||||
sched->cycle_close_time = ktime_add_ns(base, cycle);
|
||||
|
Loading…
Reference in New Issue
Block a user