synchronize_hardirq (9) - Linux Man Pages
synchronize_hardirq: wait for pending hard IRQ handlers (on other CPUs)
synchronize_hardirq - wait for pending hard IRQ handlers (on other CPUs)
bool synchronize_hardirq(unsigned int
- interrupt number to wait for
This function waits for any pending hard IRQ handlers for this interrupt to complete before returning. If you use this function while holding a resource the IRQ handler may need you will deadlock. It does not take associated threaded handlers into account.
false if a threaded handler is active.