Messages in this thread Patch in this message | | | From | Srikar Dronamraju <> | Subject | [PATCH 4/6] sched/numa: Pass destination cpu as a parameter to migrate_task_rq | Date | Fri, 3 Aug 2018 11:43:59 +0530 |
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This additional parameter (new_cpu) is used later for identifying if task migration is across nodes.
No functional change.
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> --- kernel/sched/core.c | 2 +- kernel/sched/deadline.c | 2 +- kernel/sched/fair.c | 2 +- kernel/sched/sched.h | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index deafa9f..fdab290 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1167,7 +1167,7 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) if (task_cpu(p) != new_cpu) { if (p->sched_class->migrate_task_rq) - p->sched_class->migrate_task_rq(p); + p->sched_class->migrate_task_rq(p, new_cpu); p->se.nr_migrations++; rseq_migrate(p); perf_event_task_migrate(p); diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 997ea7b..91e4202 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1607,7 +1607,7 @@ static void yield_task_dl(struct rq *rq) return cpu; } -static void migrate_task_rq_dl(struct task_struct *p) +static void migrate_task_rq_dl(struct task_struct *p, int new_cpu __maybe_unused) { struct rq *rq; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a717870..a5936ed 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6308,7 +6308,7 @@ static int wake_cap(struct task_struct *p, int cpu, int prev_cpu) * cfs_rq_of(p) references at time of call are still valid and identify the * previous CPU. The caller guarantees p->pi_lock or task_rq(p)->lock is held. */ -static void migrate_task_rq_fair(struct task_struct *p) +static void migrate_task_rq_fair(struct task_struct *p, int new_cpu __maybe_unused) { /* * As blocked tasks retain absolute vruntime the migration needs to diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 0b91612..455fa33 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1524,7 +1524,7 @@ struct sched_class { #ifdef CONFIG_SMP int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags); - void (*migrate_task_rq)(struct task_struct *p); + void (*migrate_task_rq)(struct task_struct *p, int new_cpu); void (*task_woken)(struct rq *this_rq, struct task_struct *task); -- 1.8.3.1
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