Struct SchedulerCpu 

struct SchedulerCpu {
    class_rqs: PerCpuClassRqSet,
    current_task: Option<Arc<Task>>,
    current_runtime: CurrentRuntime,
    idle_task: Arc<Task>,
    task_to_requeue: Option<Arc<Task>>,
    task_to_drop: Option<Arc<Task>>,
    need_resched: bool,
    class_table: SchedClassTable,
}

Per-CPU scheduler state

Fields

class_rqs: PerCpuClassRqSet

Multi-class priority queues

current_task: Option<Arc<Task>>

Currently running task

current_runtime: CurrentRuntime

Current runtime accounting

idle_task: Arc<Task>

Idle task to run when no other tasks are ready

task_to_requeue: Option<Arc<Task>>

Task that was just preempted and needs to be re-queued

task_to_drop: Option<Arc<Task>>

Task that is dying or blocked, to drop outside the scheduler lock

need_resched: bool

Flag indicating if the current task’s time slice has expired

class_table: SchedClassTable

Local copy of the class table for hot-path use without GLOBAL lock. Updated atomically when the global class table changes.