leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sched/fair: Remove 'cpu_busy' parameter from update_next_balance()

Browse Source 
The update_next_balance() function is only used by idle balancing, so its
'cpu_busy' parameter is always 0.

Open code it instead of passing it around.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/1470378689-14892-1-git-send-email-leo.yan@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Leo Yan 2016-08-05 14:31:29 +08:00 committed by Ingo Molnar
parent c0c8c9fa21
commit 31851a9874
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
kernel/sched/fair.c
View File

@ -7704,11 +7704,12 @@ get_sd_balance_interval(struct sched_domain *sd, int cpu_busy)
}
static inline void
update_next_balance(struct sched_domain *sd, int cpu_busy, unsigned long *next_balance)
update_next_balance(struct sched_domain *sd, unsigned long *next_balance)
{
unsigned long interval, next;
interval = get_sd_balance_interval(sd, cpu_busy);
/* used by idle balance, so cpu_busy = 0 */
interval = get_sd_balance_interval(sd, 0);
next = sd->last_balance + interval;
if (time_after(*next_balance, next))
@ -7738,7 +7739,7 @@ static int idle_balance(struct rq *this_rq)
rcu_read_lock();
sd = rcu_dereference_check_sched_domain(this_rq->sd);
if (sd)
update_next_balance(sd, 0, &next_balance);
update_next_balance(sd, &next_balance);
rcu_read_unlock();
goto out;
@ -7756,7 +7757,7 @@ static int idle_balance(struct rq *this_rq)
continue;
if (this_rq->avg_idle < curr_cost + sd->max_newidle_lb_cost) {
update_next_balance(sd, 0, &next_balance);
update_next_balance(sd, &next_balance);
break;
}
@ -7774,7 +7775,7 @@ static int idle_balance(struct rq *this_rq)
curr_cost += domain_cost;
}
update_next_balance(sd, 0, &next_balance);
update_next_balance(sd, &next_balance);
/*
* Stop searching for tasks to pull if there are