From 329061d3e2f9a0082a097e9558bd5497098586c6 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 25 May 2022 20:31:09 -0600 Subject: io_uring: move poll handling into its own file Add a io_poll_issue() rather than export the general task_work locking and io_issue_sqe(), and put the io_op_defs definition and structure into a separate header file so that poll can use it. Signed-off-by: Jens Axboe --- io_uring/opdef.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 io_uring/opdef.h (limited to 'io_uring/opdef.h') diff --git a/io_uring/opdef.h b/io_uring/opdef.h new file mode 100644 index 000000000000..4578adcdba8a --- /dev/null +++ b/io_uring/opdef.h @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef IOU_OP_DEF_H +#define IOU_OP_DEF_H + +struct io_op_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; + /* size of async data needed, if any */ + unsigned short async_size; + + const char *name; + + int (*prep)(struct io_kiocb *, const struct io_uring_sqe *); + int (*issue)(struct io_kiocb *, unsigned int); + int (*prep_async)(struct io_kiocb *); + void (*cleanup)(struct io_kiocb *); +}; + +extern const struct io_op_def io_op_defs[]; +#endif -- cgit v1.2.3