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https://github.com/torvalds/linux
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c92fcfc2ba
We use task_work for a variety of reasons, but doing completions or triggering rety after poll are by far the hottest two. Use the indirect funtion call wrappers to avoid the indirect function call if CONFIG_RETPOLINE is set. Signed-off-by: Jens Axboe <axboe@kernel.dk>
26 lines
776 B
C
26 lines
776 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/pagemap.h>
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struct io_rw_state {
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struct iov_iter iter;
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struct iov_iter_state iter_state;
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struct iovec fast_iov[UIO_FASTIOV];
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};
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struct io_async_rw {
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struct io_rw_state s;
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const struct iovec *free_iovec;
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size_t bytes_done;
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struct wait_page_queue wpq;
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};
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int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_read(struct io_kiocb *req, unsigned int issue_flags);
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int io_readv_prep_async(struct io_kiocb *req);
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int io_write(struct io_kiocb *req, unsigned int issue_flags);
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int io_writev_prep_async(struct io_kiocb *req);
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void io_readv_writev_cleanup(struct io_kiocb *req);
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void io_rw_fail(struct io_kiocb *req);
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void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts);
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