Lines Matching refs:bio
26 #define bio_prio(bio) (bio)->bi_ioprio argument
27 #define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio) argument
29 #define bio_iter_iovec(bio, iter) \ argument
30 bvec_iter_bvec((bio)->bi_io_vec, (iter))
32 #define bio_iter_page(bio, iter) \ argument
33 bvec_iter_page((bio)->bi_io_vec, (iter))
34 #define bio_iter_len(bio, iter) \ argument
35 bvec_iter_len((bio)->bi_io_vec, (iter))
36 #define bio_iter_offset(bio, iter) \ argument
37 bvec_iter_offset((bio)->bi_io_vec, (iter))
39 #define bio_page(bio) bio_iter_page((bio), (bio)->bi_iter) argument
40 #define bio_offset(bio) bio_iter_offset((bio), (bio)->bi_iter) argument
41 #define bio_iovec(bio) bio_iter_iovec((bio), (bio)->bi_iter) argument
43 #define bio_multiple_segments(bio) \ argument
44 ((bio)->bi_iter.bi_size != bio_iovec(bio).bv_len)
49 #define bio_sectors(bio) bvec_iter_sectors((bio)->bi_iter) argument
50 #define bio_end_sector(bio) bvec_iter_end_sector((bio)->bi_iter) argument
55 #define bio_data_dir(bio) \ argument
56 (op_is_write(bio_op(bio)) ? WRITE : READ)
61 static inline bool bio_has_data(struct bio *bio) in bio_has_data() argument
63 if (bio && in bio_has_data()
64 bio->bi_iter.bi_size && in bio_has_data()
65 bio_op(bio) != REQ_OP_DISCARD && in bio_has_data()
66 bio_op(bio) != REQ_OP_SECURE_ERASE && in bio_has_data()
67 bio_op(bio) != REQ_OP_WRITE_ZEROES) in bio_has_data()
73 static inline bool bio_no_advance_iter(struct bio *bio) in bio_no_advance_iter() argument
75 return bio_op(bio) == REQ_OP_DISCARD || in bio_no_advance_iter()
76 bio_op(bio) == REQ_OP_SECURE_ERASE || in bio_no_advance_iter()
77 bio_op(bio) == REQ_OP_WRITE_SAME || in bio_no_advance_iter()
78 bio_op(bio) == REQ_OP_WRITE_ZEROES; in bio_no_advance_iter()
81 static inline bool bio_mergeable(struct bio *bio) in bio_mergeable() argument
83 if (bio->bi_opf & REQ_NOMERGE_FLAGS) in bio_mergeable()
89 static inline unsigned int bio_cur_bytes(struct bio *bio) in bio_cur_bytes() argument
91 if (bio_has_data(bio)) in bio_cur_bytes()
92 return bio_iovec(bio).bv_len; in bio_cur_bytes()
94 return bio->bi_iter.bi_size; in bio_cur_bytes()
97 static inline void *bio_data(struct bio *bio) in bio_data() argument
99 if (bio_has_data(bio)) in bio_data()
100 return page_address(bio_page(bio)) + bio_offset(bio); in bio_data()
113 static inline bool bio_full(struct bio *bio, unsigned len) in bio_full() argument
115 if (bio->bi_vcnt >= bio->bi_max_vecs) in bio_full()
118 if (bio->bi_iter.bi_size > UINT_MAX - len) in bio_full()
124 static inline bool bio_next_segment(const struct bio *bio, in bio_next_segment() argument
127 if (iter->idx >= bio->bi_vcnt) in bio_next_segment()
130 bvec_advance(&bio->bi_io_vec[iter->idx], iter); in bio_next_segment()
138 #define bio_for_each_segment_all(bvl, bio, iter) \ argument
139 for (bvl = bvec_init_iter_all(&iter); bio_next_segment((bio), &iter); )
141 static inline void bio_advance_iter(struct bio *bio, struct bvec_iter *iter, in bio_advance_iter() argument
146 if (bio_no_advance_iter(bio)) in bio_advance_iter()
149 bvec_iter_advance(bio->bi_io_vec, iter, bytes); in bio_advance_iter()
153 #define __bio_for_each_segment(bvl, bio, iter, start) \ argument
156 ((bvl = bio_iter_iovec((bio), (iter))), 1); \
157 bio_advance_iter((bio), &(iter), (bvl).bv_len))
159 #define bio_for_each_segment(bvl, bio, iter) \ argument
160 __bio_for_each_segment(bvl, bio, iter, (bio)->bi_iter)
162 #define __bio_for_each_bvec(bvl, bio, iter, start) \ argument
165 ((bvl = mp_bvec_iter_bvec((bio)->bi_io_vec, (iter))), 1); \
166 bio_advance_iter((bio), &(iter), (bvl).bv_len))
169 #define bio_for_each_bvec(bvl, bio, iter) \ argument
170 __bio_for_each_bvec(bvl, bio, iter, (bio)->bi_iter)
174 static inline unsigned bio_segments(struct bio *bio) in bio_segments() argument
185 switch (bio_op(bio)) { in bio_segments()
196 bio_for_each_segment(bv, bio, iter) in bio_segments()
216 static inline void bio_get(struct bio *bio) in bio_get() argument
218 bio->bi_flags |= (1 << BIO_REFFED); in bio_get()
220 atomic_inc(&bio->__bi_cnt); in bio_get()
223 static inline void bio_cnt_set(struct bio *bio, unsigned int count) in bio_cnt_set() argument
226 bio->bi_flags |= (1 << BIO_REFFED); in bio_cnt_set()
229 atomic_set(&bio->__bi_cnt, count); in bio_cnt_set()
232 static inline bool bio_flagged(struct bio *bio, unsigned int bit) in bio_flagged() argument
234 return (bio->bi_flags & (1U << bit)) != 0; in bio_flagged()
237 static inline void bio_set_flag(struct bio *bio, unsigned int bit) in bio_set_flag() argument
239 bio->bi_flags |= (1U << bit); in bio_set_flag()
242 static inline void bio_clear_flag(struct bio *bio, unsigned int bit) in bio_clear_flag() argument
244 bio->bi_flags &= ~(1U << bit); in bio_clear_flag()
247 static inline void bio_get_first_bvec(struct bio *bio, struct bio_vec *bv) in bio_get_first_bvec() argument
249 *bv = bio_iovec(bio); in bio_get_first_bvec()
252 static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv) in bio_get_last_bvec() argument
254 struct bvec_iter iter = bio->bi_iter; in bio_get_last_bvec()
257 if (unlikely(!bio_multiple_segments(bio))) { in bio_get_last_bvec()
258 *bv = bio_iovec(bio); in bio_get_last_bvec()
262 bio_advance_iter(bio, &iter, iter.bi_size); in bio_get_last_bvec()
269 *bv = bio->bi_io_vec[idx]; in bio_get_last_bvec()
279 static inline struct bio_vec *bio_first_bvec_all(struct bio *bio) in bio_first_bvec_all() argument
281 WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); in bio_first_bvec_all()
282 return bio->bi_io_vec; in bio_first_bvec_all()
285 static inline struct page *bio_first_page_all(struct bio *bio) in bio_first_page_all() argument
287 return bio_first_bvec_all(bio)->bv_page; in bio_first_page_all()
290 static inline struct bio_vec *bio_last_bvec_all(struct bio *bio) in bio_last_bvec_all() argument
292 WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); in bio_last_bvec_all()
293 return &bio->bi_io_vec[bio->bi_vcnt - 1]; in bio_last_bvec_all()
308 struct bio *bip_bio; /* parent bio */
327 static inline struct bio_integrity_payload *bio_integrity(struct bio *bio) in bio_integrity() argument
329 if (bio->bi_opf & REQ_INTEGRITY) in bio_integrity()
330 return bio->bi_integrity; in bio_integrity()
335 static inline bool bio_integrity_flagged(struct bio *bio, enum bip_flags flag) in bio_integrity_flagged() argument
337 struct bio_integrity_payload *bip = bio_integrity(bio); in bio_integrity_flagged()
358 extern void bio_trim(struct bio *bio, int offset, int size);
359 extern struct bio *bio_split(struct bio *bio, int sectors,
372 static inline struct bio *bio_next_split(struct bio *bio, int sectors, in bio_next_split() argument
375 if (sectors >= bio_sectors(bio)) in bio_next_split()
376 return bio; in bio_next_split()
378 return bio_split(bio, sectors, gfp, bs); in bio_next_split()
390 extern struct bio *bio_alloc_bioset(gfp_t, unsigned int, struct bio_set *);
391 extern void bio_put(struct bio *);
393 extern void __bio_clone_fast(struct bio *, struct bio *);
394 extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
398 static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs) in bio_alloc()
403 static inline struct bio *bio_kmalloc(gfp_t gfp_mask, unsigned int nr_iovecs) in bio_kmalloc()
408 extern blk_qc_t submit_bio(struct bio *);
410 extern void bio_endio(struct bio *);
412 static inline void bio_io_error(struct bio *bio) in bio_io_error() argument
414 bio->bi_status = BLK_STS_IOERR; in bio_io_error()
415 bio_endio(bio); in bio_io_error()
418 static inline void bio_wouldblock_error(struct bio *bio) in bio_wouldblock_error() argument
420 bio->bi_status = BLK_STS_AGAIN; in bio_wouldblock_error()
421 bio_endio(bio); in bio_wouldblock_error()
426 extern int submit_bio_wait(struct bio *bio);
427 extern void bio_advance(struct bio *, unsigned);
429 extern void bio_init(struct bio *bio, struct bio_vec *table,
431 extern void bio_uninit(struct bio *);
432 extern void bio_reset(struct bio *);
433 void bio_chain(struct bio *, struct bio *);
435 extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
436 extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *,
438 bool __bio_try_merge_page(struct bio *bio, struct page *page,
440 void __bio_add_page(struct bio *bio, struct page *page,
442 int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter);
443 void bio_release_pages(struct bio *bio, bool mark_dirty);
445 extern struct bio *bio_map_user_iov(struct request_queue *,
447 extern void bio_unmap_user(struct bio *);
448 extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int,
450 extern struct bio *bio_copy_kern(struct request_queue *, void *, unsigned int,
452 extern void bio_set_pages_dirty(struct bio *bio);
453 extern void bio_check_pages_dirty(struct bio *bio);
461 extern void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter,
462 struct bio *src, struct bvec_iter *src_iter);
463 extern void bio_copy_data(struct bio *dst, struct bio *src);
464 extern void bio_list_copy_data(struct bio *dst, struct bio *src);
465 extern void bio_free_pages(struct bio *bio);
467 extern struct bio *bio_copy_user_iov(struct request_queue *,
471 extern int bio_uncopy_user(struct bio *);
472 void zero_fill_bio_iter(struct bio *bio, struct bvec_iter iter);
474 static inline void zero_fill_bio(struct bio *bio) in zero_fill_bio() argument
476 zero_fill_bio_iter(bio, bio->bi_iter); in zero_fill_bio()
482 extern const char *bio_devname(struct bio *bio, char *buffer);
484 #define bio_set_dev(bio, bdev) \ argument
486 if ((bio)->bi_disk != (bdev)->bd_disk) \
487 bio_clear_flag(bio, BIO_THROTTLED);\
488 (bio)->bi_disk = (bdev)->bd_disk; \
489 (bio)->bi_partno = (bdev)->bd_partno; \
490 bio_associate_blkg(bio); \
500 #define bio_dev(bio) \ argument
501 disk_devt((bio)->bi_disk)
504 void bio_associate_blkg_from_page(struct bio *bio, struct page *page);
506 static inline void bio_associate_blkg_from_page(struct bio *bio, in bio_associate_blkg_from_page() argument
511 void bio_disassociate_blkg(struct bio *bio);
512 void bio_associate_blkg(struct bio *bio);
513 void bio_associate_blkg_from_css(struct bio *bio,
515 void bio_clone_blkg_association(struct bio *dst, struct bio *src);
517 static inline void bio_disassociate_blkg(struct bio *bio) { } in bio_disassociate_blkg() argument
518 static inline void bio_associate_blkg(struct bio *bio) { } in bio_associate_blkg() argument
519 static inline void bio_associate_blkg_from_css(struct bio *bio, in bio_associate_blkg_from_css() argument
522 static inline void bio_clone_blkg_association(struct bio *dst, in bio_clone_blkg_association()
523 struct bio *src) { } in bio_clone_blkg_association()
575 struct bio *head;
576 struct bio *tail;
591 #define bio_list_for_each(bio, bl) \ argument
592 for (bio = (bl)->head; bio; bio = bio->bi_next)
597 struct bio *bio; in bio_list_size() local
599 bio_list_for_each(bio, bl) in bio_list_size()
605 static inline void bio_list_add(struct bio_list *bl, struct bio *bio) in bio_list_add() argument
607 bio->bi_next = NULL; in bio_list_add()
610 bl->tail->bi_next = bio; in bio_list_add()
612 bl->head = bio; in bio_list_add()
614 bl->tail = bio; in bio_list_add()
617 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio) in bio_list_add_head() argument
619 bio->bi_next = bl->head; in bio_list_add_head()
621 bl->head = bio; in bio_list_add_head()
624 bl->tail = bio; in bio_list_add_head()
654 static inline struct bio *bio_list_peek(struct bio_list *bl) in bio_list_peek()
659 static inline struct bio *bio_list_pop(struct bio_list *bl) in bio_list_pop()
661 struct bio *bio = bl->head; in bio_list_pop() local
663 if (bio) { in bio_list_pop()
668 bio->bi_next = NULL; in bio_list_pop()
671 return bio; in bio_list_pop()
674 static inline struct bio *bio_list_get(struct bio_list *bl) in bio_list_get()
676 struct bio *bio = bl->head; in bio_list_get() local
680 return bio; in bio_list_get()
687 static inline void bio_inc_remaining(struct bio *bio) in bio_inc_remaining() argument
689 bio_set_flag(bio, BIO_CHAIN); in bio_inc_remaining()
691 atomic_inc(&bio->__bi_remaining); in bio_inc_remaining()
749 extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
750 extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
751 extern bool bio_integrity_prep(struct bio *);
752 extern void bio_integrity_advance(struct bio *, unsigned int);
753 extern void bio_integrity_trim(struct bio *);
754 extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);
761 static inline void *bio_integrity(struct bio *bio) in bio_integrity() argument
776 static inline bool bio_integrity_prep(struct bio *bio) in bio_integrity_prep() argument
781 static inline int bio_integrity_clone(struct bio *bio, struct bio *bio_src, in bio_integrity_clone() argument
787 static inline void bio_integrity_advance(struct bio *bio, in bio_integrity_advance() argument
793 static inline void bio_integrity_trim(struct bio *bio) in bio_integrity_trim() argument
803 static inline bool bio_integrity_flagged(struct bio *bio, enum bip_flags flag) in bio_integrity_flagged() argument
808 static inline void *bio_integrity_alloc(struct bio * bio, gfp_t gfp, in bio_integrity_alloc() argument
814 static inline int bio_integrity_add_page(struct bio *bio, struct page *page, in bio_integrity_add_page() argument
829 static inline void bio_set_polled(struct bio *bio, struct kiocb *kiocb) in bio_set_polled() argument
831 bio->bi_opf |= REQ_HIPRI; in bio_set_polled()
833 bio->bi_opf |= REQ_NOWAIT; in bio_set_polled()