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authorJens Axboe <axboe@kernel.dk>2022-05-26 05:31:09 +0300
committerJens Axboe <axboe@kernel.dk>2022-07-25 03:39:12 +0300
commit329061d3e2f9a0082a097e9558bd5497098586c6 (patch)
tree3a0d34b89b6ef8df26c0ca04a7c60732ada208af /io_uring/opdef.h
parentcfd22e6b3319adc7c2a8a092e19ac16575dabc86 (diff)
downloadlinux-329061d3e2f9a0082a097e9558bd5497098586c6.tar.xz
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 <axboe@kernel.dk>
Diffstat (limited to 'io_uring/opdef.h')
-rw-r--r--io_uring/opdef.h40
1 files changed, 40 insertions, 0 deletions
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