Crate preemption

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Manages preemption on a per-CPU basis.

Supports enabling and disabling preemption for the purpose of safe task state management, e.g., through preemption-safe locks.

Structs

  • PreemptionGuard
    A guard type that ensures preemption is disabled as long as it is held.

Functions

  • hold_preemption
    Prevents preemption (preemptive task switching) from occurring until the returned guard object is dropped.
  • preemption_enabled
    Returns true if preemption is currently enabled on this CPU.