1 // SPDX-License-Identifier: GPL-2.0 2 #ifndef IOU_LOOP_H 3 #define IOU_LOOP_H 4 5 #include <linux/io_uring_types.h> 6 7 struct iou_loop_params { 8 /* 9 * The CQE index to wait for. Only serves as a hint and can still be 10 * woken up earlier. 11 */ 12 __u32 cq_wait_idx; 13 }; 14 15 enum { 16 IOU_LOOP_CONTINUE = 0, 17 IOU_LOOP_STOP, 18 }; 19 20 static inline bool io_has_loop_ops(struct io_ring_ctx *ctx) 21 { 22 return data_race(ctx->loop_step); 23 } 24 25 int io_run_loop(struct io_ring_ctx *ctx); 26 27 static inline struct iou_ctx *io_loop_mangle_ctx(struct io_ring_ctx *ctx) 28 { 29 return (struct iou_ctx *)ctx; 30 } 31 32 static inline struct io_ring_ctx *io_loop_demangle_ctx(struct iou_ctx *ctx) 33 { 34 return (struct io_ring_ctx *)ctx; 35 } 36 37 #endif 38