| #ifndef _LINUX_IRQ_WORK_H |
| #define _LINUX_IRQ_WORK_H |
| * An entry can be in one of four states: |
| * free NULL, 0 -> {claimed} : free to be used |
| * claimed NULL, 3 -> {pending} : claimed to be enqueued |
| * pending next, 3 -> {busy} : queued, pending callback |
| * busy NULL, 2 -> {free, claimed} : callback in progress, can be claimed |
| #define IRQ_WORK_PENDING 1UL |
| #define IRQ_WORK_BUSY 2UL |
| #define IRQ_WORK_FLAGS 3UL |
| #define IRQ_WORK_LAZY 4UL /* Doesn't want IPI, wait for tick */ |
| struct llist_node llnode; |
| void (*func)(struct irq_work *); |
| void init_irq_work(struct irq_work *work, void (*func)(struct irq_work *)) |
| void irq_work_queue(struct irq_work *work); |
| void irq_work_sync(struct irq_work *work); |
| bool irq_work_needs_cpu(void); |
| static inline bool irq_work_needs_cpu(void) { return false; } |
| #endif /* _LINUX_IRQ_WORK_H */ |