MAJOR=4 MINOR=26 DEVNAME=tty26 _I|Mjq؂File not found.  hauto   File not found.   File not found. B l=J!e8Ep Tţ `q_I|+am_J*j"T~Cqţ? /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */ /* * Header file for the io_uring interface. * * Copyright (C) 2019 Jens Axboe * Copyright (C) 2019 Christoph Hellwig */ #ifndef LINUX_IO_URING_H #define LINUX_IO_URING_H #include #include /* * this file is shared with liburing and that has to autodetect * if linux/time_types.h is available or not, it can * define UAPI_LINUX_IO_URING_H_SKIP_LINUX_TIME_TYPES_H * if linux/time_types.h is not available */ #ifndef UAPI_LINUX_IO_URING_H_SKIP_LINUX_TIME_TYPES_H #include #endif #ifdef __cplusplus extern "C" { #endif /* * IO submission data structure (Submission Queue Entry) */ struct io_uring_sqe { __u8 opcode; /* type of operation for this sqe */ __u8 flags; /* IOSQE_ flags */ __u16 ioprio; /* ioprio for the request */ __s32 fd; /* file descriptor to do IO on */ union { __u64 off; /* offset into file */ __u64 addr2; struct { __u32 cmd_op; __u32 __pad1; }; }; union { __u64 addr; /* pointer to buffer or iovecs */ __u64 splice_off_in; struct { __u32 level; __u32 optname; }; }; __u32 len; /* buffer size or number of iovecs */ union { __u32 rw_flags; __u32 fsync_flags; __u16 poll_events; /* compatibility */ __u32 poll32_events; /* word-reversed for BE */ __u32 sync_range_flags; __u32 msg_flags; __u32 timeout_flags; __u32 accept_flags; __u32 cancel_flags; __u32 open_flags; __u32 statx_flags; __u32 fadvise_advice; __u32 splice_flags; __u32 rename_flags; __u32 unlink_flags; __u32 hardlink_flags; __u32 xattr_flags; __u32 msg_ring_flags; __u32 uring_cmd_flags; __u32 waitid_flags; __u32 futex_flags; __u32 install_fd_flags; __u32 nop_flags; }; __u64 user_data; /* data to be passed back at completion time */ /* pack this to avoid bogus arm OABI complaints */ union { /* index into fixed buffers, if used */ __u16 buf_index; /* for grouped buffer selection */ __u16 buf_group; } __attribute__((packed)); /* personality to use, if used */ __u16 personality; union { __s32 splice_fd_in; __u32 file_index; __u32 optlen; struct { __u16 addr_len; __u16 __pad3[1]; }; struct { __u8 write_stream; __u8 __pad4[3]; }; }; union { struct { __u64 addr3; __u64 __pad2[1]; }; struct { __u64 attr_ptr; /* pointer to attribute information */ __u64 attr_type_mask; /* bit mask of attributes */ }; __u64 optval; /* * If the ring is initialized with IORING_SETUP_SQE128, then * this field is used for 80 bytes of arbitrary command data */ __u8 cmd[0]; }; }; /* sqe->attr_type_mask flags */ #define IORING_RW_ATTR_FLAG_PI (1U << 0) /* PI attribute information */ struct io_uring_attr_pi { __u16 flags; __u16 app_tag; __u32 len; __u64 addr; __u64 seed; __u64 rsvd; }; /* * If sqe->file_index is set to this for opcodes that instantiate a new * direct descriptor (like openat/openat2/accept), then io_uring will allocate * an available direct descriptor instead of having the application pass one * in. The picked direct descriptor will be returned in cqe->res, or -ENFILE * if the space is full. */ #define IORING_FILE_INDEX_ALLOC (~0U) enum io_uring_sqe_flags_bit { IOSQE_FIXED_FILE_BIT, IOSQE_IO_DRAIN_BIT, IOSQE_IO_LINK_BIT, IOSQE_IO_HARDLINK_BIT, IOSQE_ASYNC_BIT, IOSQE_BUFFER_SELECT_BIT, IOSQE_CQE_SKIP_SUCCESS_BIT, }; /* * sqe->flags */ /* use fixed fileset */ #define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT) /* issue after inflight IO */ #define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT) /* links next sqe */ #define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT) /* like LINK, but stronger */ #define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT) /* alway