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With larger-sized metadata vio pools, vdo will sometimes need to issue I/O with a smaller size than the allocated size. Since vio_reset_bio is where the bvec array and I/O size are initialized, this reset interface must now specify what I/O size to use. Signed-off-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2023 Red Hat
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*/
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#ifndef VDO_IO_SUBMITTER_H
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#define VDO_IO_SUBMITTER_H
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#include <linux/bio.h>
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#include "constants.h"
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#include "types.h"
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struct io_submitter;
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int vdo_make_io_submitter(unsigned int thread_count, unsigned int rotation_interval,
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unsigned int max_requests_active, struct vdo *vdo,
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struct io_submitter **io_submitter);
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void vdo_cleanup_io_submitter(struct io_submitter *io_submitter);
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void vdo_free_io_submitter(struct io_submitter *io_submitter);
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void vdo_submit_vio(struct vdo_completion *completion);
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void vdo_submit_data_vio(struct data_vio *data_vio);
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void __submit_metadata_vio(struct vio *vio, physical_block_number_t physical,
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bio_end_io_t callback, vdo_action_fn error_handler,
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blk_opf_t operation, char *data, int size);
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static inline void vdo_submit_metadata_vio(struct vio *vio, physical_block_number_t physical,
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bio_end_io_t callback, vdo_action_fn error_handler,
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blk_opf_t operation)
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{
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__submit_metadata_vio(vio, physical, callback, error_handler,
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operation, vio->data, vio->block_count * VDO_BLOCK_SIZE);
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}
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static inline void vdo_submit_metadata_vio_with_size(struct vio *vio,
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physical_block_number_t physical,
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bio_end_io_t callback,
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vdo_action_fn error_handler,
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blk_opf_t operation,
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int size)
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{
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__submit_metadata_vio(vio, physical, callback, error_handler,
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operation, vio->data, size);
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}
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static inline void vdo_submit_flush_vio(struct vio *vio, bio_end_io_t callback,
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vdo_action_fn error_handler)
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{
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/* FIXME: Can we just use REQ_OP_FLUSH? */
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__submit_metadata_vio(vio, 0, callback, error_handler,
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REQ_OP_WRITE | REQ_PREFLUSH, NULL, 0);
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}
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#endif /* VDO_IO_SUBMITTER_H */
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