1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2023 Red Hat 4 */ 5 6 #ifndef VDO_IO_SUBMITTER_H 7 #define VDO_IO_SUBMITTER_H 8 9 #include <linux/bio.h> 10 11 #include "types.h" 12 13 struct io_submitter; 14 15 int vdo_make_io_submitter(unsigned int thread_count, unsigned int rotation_interval, 16 unsigned int max_requests_active, struct vdo *vdo, 17 struct io_submitter **io_submitter); 18 19 void vdo_cleanup_io_submitter(struct io_submitter *io_submitter); 20 21 void vdo_free_io_submitter(struct io_submitter *io_submitter); 22 23 void vdo_submit_vio(struct vdo_completion *completion); 24 25 void vdo_submit_data_vio(struct data_vio *data_vio); 26 27 void __submit_metadata_vio(struct vio *vio, physical_block_number_t physical, 28 bio_end_io_t callback, vdo_action_fn error_handler, 29 blk_opf_t operation, char *data); 30 31 static inline void vdo_submit_metadata_vio(struct vio *vio, physical_block_number_t physical, 32 bio_end_io_t callback, vdo_action_fn error_handler, 33 blk_opf_t operation) 34 { 35 __submit_metadata_vio(vio, physical, callback, error_handler, 36 operation, vio->data); 37 } 38 39 static inline void vdo_submit_flush_vio(struct vio *vio, bio_end_io_t callback, 40 vdo_action_fn error_handler) 41 { 42 /* FIXME: Can we just use REQ_OP_FLUSH? */ 43 __submit_metadata_vio(vio, 0, callback, error_handler, 44 REQ_OP_WRITE | REQ_PREFLUSH, NULL); 45 } 46 47 #endif /* VDO_IO_SUBMITTER_H */ 48