1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef _LINUX_IO_URING_H
3 #define _LINUX_IO_URING_H
5 #include <linux/sched.h>
6 #include <linux/xarray.h>
7 #include <uapi/linux/io_uring.h>
9 enum io_uring_cmd_flags {
10 IO_URING_F_COMPLETE_DEFER = 1,
11 IO_URING_F_UNLOCKED = 2,
12 /* int's last bit, sign checks are usually faster than a bit test */
13 IO_URING_F_NONBLOCK = INT_MIN,
15 /* ctx state flags, for URING_CMD */
16 IO_URING_F_SQE128 = 4,
18 IO_URING_F_IOPOLL = 16,
25 /* callback to defer completions to task context */
26 void (*task_work_cb)(struct io_uring_cmd *cmd);
27 /* used for polled completion */
32 u8 pdu[32]; /* available inline for free use */
35 #if defined(CONFIG_IO_URING)
36 int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
37 struct iov_iter *iter, void *ioucmd);
38 void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret, ssize_t res2);
39 void io_uring_cmd_complete_in_task(struct io_uring_cmd *ioucmd,
40 void (*task_work_cb)(struct io_uring_cmd *));
41 struct sock *io_uring_get_socket(struct file *file);
42 void __io_uring_cancel(bool cancel_all);
43 void __io_uring_free(struct task_struct *tsk);
44 void io_uring_unreg_ringfd(void);
45 const char *io_uring_get_opcode(u8 opcode);
47 static inline void io_uring_files_cancel(void)
49 if (current->io_uring) {
50 io_uring_unreg_ringfd();
51 __io_uring_cancel(false);
54 static inline void io_uring_task_cancel(void)
56 if (current->io_uring)
57 __io_uring_cancel(true);
59 static inline void io_uring_free(struct task_struct *tsk)
65 static inline int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
66 struct iov_iter *iter, void *ioucmd)
70 static inline void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret,
74 static inline void io_uring_cmd_complete_in_task(struct io_uring_cmd *ioucmd,
75 void (*task_work_cb)(struct io_uring_cmd *))
78 static inline struct sock *io_uring_get_socket(struct file *file)
82 static inline void io_uring_task_cancel(void)
85 static inline void io_uring_files_cancel(void)
88 static inline void io_uring_free(struct task_struct *tsk)
91 static inline const char *io_uring_get_opcode(u8 opcode)