From: Tejun Heo <tj@kernel.org> mainline inclusion from mainline-v6.12-rc1 commit 37cb049ef8b89e97d735f5cf7e34ef3f85ed6d94 category: feature bugzilla: https://atomgit.com/openeuler/kernel/issues/8335 Reference: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commi... -------------------------------- With sched_ext converted to use put_prev_task() for class switch detection, there's no user of switch_class() left. Drop it. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Zicheng Qu <quzicheng@huawei.com> Signed-off-by: cheliequan <cheliequan@inspur.com> Signed-off-by: Luo Gengkun <luogengkun2@huawei.com> --- kernel/sched/core.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 37d25534a7a6..9ea58e55756f 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5957,13 +5957,8 @@ __pick_next_task(struct rq *rq, struct task_struct *prev, struct rq_flags *rf) for_each_active_class(class) { if (class->pick_next_task) { p = class->pick_next_task(rq, prev); - if (p) { - const struct sched_class *prev_class = prev->sched_class; - - if (class != prev_class && prev_class->switch_class) - prev_class->switch_class(rq, p); + if (p) return p; - } } else { p = class->pick_task(rq); if (p) { -- 2.34.1