[thirdparty/kernel/linux.git] / io_uring / sqpoll.h

// SPDX-License-Identifier: GPL-2.0

struct io_sq_data {
	refcount_t		refs;
	atomic_t		park_pending;
	struct mutex		lock;

	/* ctx's that are using this sqd */
	struct list_head	ctx_list;

	struct task_struct	*thread;
	struct wait_queue_head	wait;

	unsigned		sq_thread_idle;
	int			sq_cpu;
	pid_t			task_pid;
	pid_t			task_tgid;

	u64			work_time;
	unsigned long		state;
	struct completion	exited;
};

int io_sq_offload_create(struct io_ring_ctx *ctx, struct io_uring_params *p);
void io_sq_thread_finish(struct io_ring_ctx *ctx);
void io_sq_thread_stop(struct io_sq_data *sqd);
void io_sq_thread_park(struct io_sq_data *sqd);
void io_sq_thread_unpark(struct io_sq_data *sqd);
void io_put_sq_data(struct io_sq_data *sqd);
void io_sqpoll_wait_sq(struct io_ring_ctx *ctx);
int io_sqpoll_wq_cpu_affinity(struct io_ring_ctx *ctx, cpumask_var_t mask);
Commit	Line	Data
17437f31 JA	1	// SPDX-License-Identifier: GPL-2.0
	2
	3	struct io_sq_data {
	4	refcount_t refs;
	5	atomic_t park_pending;
	6	struct mutex lock;
	7
	8	/* ctx's that are using this sqd */
	9	struct list_head ctx_list;
	10
	11	struct task_struct *thread;
	12	struct wait_queue_head wait;
	13
	14	unsigned sq_thread_idle;
	15	int sq_cpu;
	16	pid_t task_pid;
	17	pid_t task_tgid;
	18
3fcb9d17	19	u64 work_time;
17437f31 JA	20	unsigned long state;
	21	struct completion exited;
	22	};
	23
	24	int io_sq_offload_create(struct io_ring_ctx ctx, struct io_uring_params p);
	25	void io_sq_thread_finish(struct io_ring_ctx *ctx);
	26	void io_sq_thread_stop(struct io_sq_data *sqd);
	27	void io_sq_thread_park(struct io_sq_data *sqd);
	28	void io_sq_thread_unpark(struct io_sq_data *sqd);
	29	void io_put_sq_data(struct io_sq_data *sqd);
88b80534	30	void io_sqpoll_wait_sq(struct io_ring_ctx *ctx);
ebdfefc0	31	int io_sqpoll_wq_cpu_affinity(struct io_ring_ctx *ctx, cpumask_var_t mask);