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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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0fea2c4509
Keep all flags that we use in the generic req init path close together. That saves a load for x86 because apparently some compilers prefer reading single bytes. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/ef03b6ce4a0c2a5234cd4037fa07e9e4902dcc9e.1740602793.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef IOU_OP_DEF_H
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#define IOU_OP_DEF_H
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struct io_issue_def {
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/* needs req->file assigned */
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unsigned needs_file : 1;
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/* should block plug */
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unsigned plug : 1;
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/* supports ioprio */
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unsigned ioprio : 1;
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/* supports iopoll */
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unsigned iopoll : 1;
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/* op supports buffer selection */
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unsigned buffer_select : 1;
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/* hash wq insertion if file is a regular file */
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unsigned hash_reg_file : 1;
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/* unbound wq insertion if file is a non-regular file */
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unsigned unbound_nonreg_file : 1;
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/* set if opcode supports polled "wait" */
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unsigned pollin : 1;
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unsigned pollout : 1;
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unsigned poll_exclusive : 1;
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/* skip auditing */
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unsigned audit_skip : 1;
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/* have to be put into the iopoll list */
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unsigned iopoll_queue : 1;
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/* vectored opcode, set if 1) vectored, and 2) handler needs to know */
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unsigned vectored : 1;
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/* size of async data needed, if any */
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unsigned short async_size;
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int (*issue)(struct io_kiocb *, unsigned int);
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int (*prep)(struct io_kiocb *, const struct io_uring_sqe *);
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};
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struct io_cold_def {
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const char *name;
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void (*cleanup)(struct io_kiocb *);
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void (*fail)(struct io_kiocb *);
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};
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extern const struct io_issue_def io_issue_defs[];
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extern const struct io_cold_def io_cold_defs[];
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bool io_uring_op_supported(u8 opcode);
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void io_uring_optable_init(void);
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#endif
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