mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-28 12:53:14 +01:00
Christoph Hellwig
758b86f7bc
blkdev.h gets included in various places outside the block layer just for struct blk_plug and related plugging functions. Split blk_plug into a separate helper to reduce the amount of code that needs to get rebuilt when blkdev.h changes and to slightly reduce compile times. In io_uring this requires pulling in a few other headers explicitly that previously were implicitly included through blkdev.h. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Christian Brauner (Amutable) <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Damien Le Moal <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jens Axboe <[email protected]>
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/io_uring_types.h>
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#include <linux/pagemap.h>
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#include <linux/uio.h>
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struct io_meta_state {
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u32 seed;
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struct iov_iter_state iter_meta;
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};
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struct io_async_rw {
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struct iou_vec vec;
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size_t bytes_done;
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struct_group(clear,
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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;
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unsigned buf_group;
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/*
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* wpq is for buffered io, while meta fields are used with
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* direct io
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*/
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union {
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struct wait_page_queue wpq;
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struct {
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struct uio_meta meta;
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struct io_meta_state meta_state;
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};
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};
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);
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};
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int io_prep_read_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_write_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_readv_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_writev_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_readv(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_writev(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_read(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_prep_write(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_write(struct io_kiocb *req, unsigned int issue_flags);
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int io_read_fixed(struct io_kiocb *req, unsigned int issue_flags);
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int io_write_fixed(struct io_kiocb *req, unsigned int issue_flags);
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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_tw_req tw_req, io_tw_token_t tw);
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int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
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void io_rw_cache_free(const void *entry);
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