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authorKirill Tkhai <tkhai@yandex.ru>2014-02-18 02:24:13 +0400
committerThomas Gleixner <tglx@linutronix.de>2014-02-21 21:27:10 +0100
commit995b9ea440862def83e8fcb1b498e68f93d4af59 (patch)
tree48f92a8964fc2d1373cb8aeecfefce57f1b17de3 /kernel
parent82b95800b256205cff2eeab5bbd03430d2d0f20d (diff)
downloadlinux-995b9ea440862def83e8fcb1b498e68f93d4af59.tar.gz
sched/deadline: Remove useless dl_nr_total
In deadline class we do not have group scheduling like in RT. dl_nr_total is the same as dl_nr_running. So, one of them should be removed. Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/368631392675853@web20h.yandex.ru Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched/deadline.c4
-rw-r--r--kernel/sched/sched.h1
2 files changed, 1 insertions, 4 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index b819577c21d..15cbc17fbf8 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -121,7 +121,7 @@ static inline void dl_clear_overload(struct rq *rq)
static void update_dl_migration(struct dl_rq *dl_rq)
{
- if (dl_rq->dl_nr_migratory && dl_rq->dl_nr_total > 1) {
+ if (dl_rq->dl_nr_migratory && dl_rq->dl_nr_running > 1) {
if (!dl_rq->overloaded) {
dl_set_overload(rq_of_dl_rq(dl_rq));
dl_rq->overloaded = 1;
@@ -137,7 +137,6 @@ static void inc_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
struct task_struct *p = dl_task_of(dl_se);
dl_rq = &rq_of_dl_rq(dl_rq)->dl;
- dl_rq->dl_nr_total++;
if (p->nr_cpus_allowed > 1)
dl_rq->dl_nr_migratory++;
@@ -149,7 +148,6 @@ static void dec_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
struct task_struct *p = dl_task_of(dl_se);
dl_rq = &rq_of_dl_rq(dl_rq)->dl;
- dl_rq->dl_nr_total--;
if (p->nr_cpus_allowed > 1)
dl_rq->dl_nr_migratory--;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index c2119fd20f8..f964add50f3 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -462,7 +462,6 @@ struct dl_rq {
} earliest_dl;
unsigned long dl_nr_migratory;
- unsigned long dl_nr_total;
int overloaded;
/*