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47b4c68660
A partially done read/write may end up in io_req_complete_failed() and loose the result, make sure we return the number of bytes processed. Cc: stable@vger.kernel.org Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/05e0879c226bcd53b441bf92868eadd4bf04e2fc.1663668091.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
25 lines
705 B
C
25 lines
705 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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