diff options
Diffstat (limited to 'io_uring/opdef.h')
| -rw-r--r-- | io_uring/opdef.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/io_uring/opdef.h b/io_uring/opdef.h new file mode 100644 index 000000000..c22c8696e --- /dev/null +++ b/io_uring/opdef.h @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef IOU_OP_DEF_H +#define IOU_OP_DEF_H + +struct io_issue_def { + /* needs req->file assigned */ + unsigned needs_file : 1; + /* should block plug */ + unsigned plug : 1; + /* hash wq insertion if file is a regular file */ + unsigned hash_reg_file : 1; + /* unbound wq insertion if file is a non-regular file */ + unsigned unbound_nonreg_file : 1; + /* set if opcode supports polled "wait" */ + unsigned pollin : 1; + unsigned pollout : 1; + unsigned poll_exclusive : 1; + /* op supports buffer selection */ + unsigned buffer_select : 1; + /* opcode is not supported by this kernel */ + unsigned not_supported : 1; + /* skip auditing */ + unsigned audit_skip : 1; + /* supports ioprio */ + unsigned ioprio : 1; + /* supports iopoll */ + unsigned iopoll : 1; + /* have to be put into the iopoll list */ + unsigned iopoll_queue : 1; + /* opcode specific path will handle ->async_data allocation if needed */ + unsigned manual_alloc : 1; + + int (*issue)(struct io_kiocb *, unsigned int); + int (*prep)(struct io_kiocb *, const struct io_uring_sqe *); +}; + +struct io_cold_def { + /* size of async data needed, if any */ + unsigned short async_size; + + const char *name; + + int (*prep_async)(struct io_kiocb *); + void (*cleanup)(struct io_kiocb *); + void (*fail)(struct io_kiocb *); +}; + +extern const struct io_issue_def io_issue_defs[]; +extern const struct io_cold_def io_cold_defs[]; + +void io_uring_optable_init(void); +#endif |