Lines Matching refs:bio
29 #define bio_prio(bio) (bio)->bi_ioprio argument
30 #define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio) argument
32 #define bio_iter_iovec(bio, iter) \ argument
33 bvec_iter_bvec((bio)->bi_io_vec, (iter))
35 #define bio_iter_page(bio, iter) \ argument
36 bvec_iter_page((bio)->bi_io_vec, (iter))
37 #define bio_iter_len(bio, iter) \ argument
38 bvec_iter_len((bio)->bi_io_vec, (iter))
39 #define bio_iter_offset(bio, iter) \ argument
40 bvec_iter_offset((bio)->bi_io_vec, (iter))
42 #define bio_page(bio) bio_iter_page((bio), (bio)->bi_iter) argument
43 #define bio_offset(bio) bio_iter_offset((bio), (bio)->bi_iter) argument
44 #define bio_iovec(bio) bio_iter_iovec((bio), (bio)->bi_iter) argument
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(const 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(const struct bio *bio, 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()
154 static inline void bio_advance_iter_single(const struct bio *bio, in bio_advance_iter_single() argument
160 if (bio_no_advance_iter(bio)) in bio_advance_iter_single()
163 bvec_iter_advance_single(bio->bi_io_vec, iter, bytes); in bio_advance_iter_single()
166 #define __bio_for_each_segment(bvl, bio, iter, start) \ argument
169 ((bvl = bio_iter_iovec((bio), (iter))), 1); \
170 bio_advance_iter_single((bio), &(iter), (bvl).bv_len))
172 #define bio_for_each_segment(bvl, bio, iter) \ argument
173 __bio_for_each_segment(bvl, bio, iter, (bio)->bi_iter)
175 #define __bio_for_each_bvec(bvl, bio, iter, start) \ argument
178 ((bvl = mp_bvec_iter_bvec((bio)->bi_io_vec, (iter))), 1); \
179 bio_advance_iter_single((bio), &(iter), (bvl).bv_len))
182 #define bio_for_each_bvec(bvl, bio, iter) \ argument
183 __bio_for_each_bvec(bvl, bio, iter, (bio)->bi_iter)
189 #define bio_for_each_bvec_all(bvl, bio, i) \ argument
190 for (i = 0, bvl = bio_first_bvec_all(bio); \
191 i < (bio)->bi_vcnt; i++, bvl++) \
195 static inline unsigned bio_segments(struct bio *bio) in bio_segments() argument
206 switch (bio_op(bio)) { in bio_segments()
217 bio_for_each_segment(bv, bio, iter) in bio_segments()
237 static inline void bio_get(struct bio *bio) in bio_get() argument
239 bio->bi_flags |= (1 << BIO_REFFED); in bio_get()
241 atomic_inc(&bio->__bi_cnt); in bio_get()
244 static inline void bio_cnt_set(struct bio *bio, unsigned int count) in bio_cnt_set() argument
247 bio->bi_flags |= (1 << BIO_REFFED); in bio_cnt_set()
250 atomic_set(&bio->__bi_cnt, count); in bio_cnt_set()
253 static inline bool bio_flagged(struct bio *bio, unsigned int bit) in bio_flagged() argument
255 return (bio->bi_flags & (1U << bit)) != 0; in bio_flagged()
258 static inline void bio_set_flag(struct bio *bio, unsigned int bit) in bio_set_flag() argument
260 bio->bi_flags |= (1U << bit); in bio_set_flag()
263 static inline void bio_clear_flag(struct bio *bio, unsigned int bit) in bio_clear_flag() argument
265 bio->bi_flags &= ~(1U << bit); in bio_clear_flag()
268 static inline void bio_get_first_bvec(struct bio *bio, struct bio_vec *bv) in bio_get_first_bvec() argument
270 *bv = mp_bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter); in bio_get_first_bvec()
273 static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv) in bio_get_last_bvec() argument
275 struct bvec_iter iter = bio->bi_iter; in bio_get_last_bvec()
278 bio_get_first_bvec(bio, bv); in bio_get_last_bvec()
279 if (bv->bv_len == bio->bi_iter.bi_size) in bio_get_last_bvec()
282 bio_advance_iter(bio, &iter, iter.bi_size); in bio_get_last_bvec()
289 *bv = bio->bi_io_vec[idx]; in bio_get_last_bvec()
299 static inline struct bio_vec *bio_first_bvec_all(struct bio *bio) in bio_first_bvec_all() argument
301 WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); in bio_first_bvec_all()
302 return bio->bi_io_vec; in bio_first_bvec_all()
305 static inline struct page *bio_first_page_all(struct bio *bio) in bio_first_page_all() argument
307 return bio_first_bvec_all(bio)->bv_page; in bio_first_page_all()
310 static inline struct bio_vec *bio_last_bvec_all(struct bio *bio) in bio_last_bvec_all() argument
312 WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); in bio_last_bvec_all()
313 return &bio->bi_io_vec[bio->bi_vcnt - 1]; in bio_last_bvec_all()
328 struct bio *bip_bio; /* parent bio */
346 static inline struct bio_integrity_payload *bio_integrity(struct bio *bio) in bio_integrity() argument
348 if (bio->bi_opf & REQ_INTEGRITY) in bio_integrity()
349 return bio->bi_integrity; in bio_integrity()
354 static inline bool bio_integrity_flagged(struct bio *bio, enum bip_flags flag) in bio_integrity_flagged() argument
356 struct bio_integrity_payload *bip = bio_integrity(bio); in bio_integrity_flagged()
377 void bio_trim(struct bio *bio, sector_t offset, sector_t size);
378 extern struct bio *bio_split(struct bio *bio, int sectors,
391 static inline struct bio *bio_next_split(struct bio *bio, int sectors, in bio_next_split() argument
394 if (sectors >= bio_sectors(bio)) in bio_next_split()
395 return bio; in bio_next_split()
397 return bio_split(bio, sectors, gfp, bs); in bio_next_split()
410 struct bio *bio_alloc_bioset(gfp_t gfp, unsigned short nr_iovecs,
412 struct bio *bio_alloc_kiocb(struct kiocb *kiocb, unsigned short nr_vecs,
414 struct bio *bio_kmalloc(gfp_t gfp_mask, unsigned short nr_iovecs);
415 extern void bio_put(struct bio *);
417 extern void __bio_clone_fast(struct bio *, struct bio *);
418 extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
422 static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned short nr_iovecs) in bio_alloc()
427 extern blk_qc_t submit_bio(struct bio *);
429 extern void bio_endio(struct bio *);
431 static inline void bio_io_error(struct bio *bio) in bio_io_error() argument
433 bio->bi_status = BLK_STS_IOERR; in bio_io_error()
434 bio_endio(bio); in bio_io_error()
437 static inline void bio_wouldblock_error(struct bio *bio) in bio_wouldblock_error() argument
439 bio_set_flag(bio, BIO_QUIET); in bio_wouldblock_error()
440 bio->bi_status = BLK_STS_AGAIN; in bio_wouldblock_error()
441 bio_endio(bio); in bio_wouldblock_error()
458 extern int submit_bio_wait(struct bio *bio);
459 extern void bio_advance(struct bio *, unsigned);
461 extern void bio_init(struct bio *bio, struct bio_vec *table,
463 extern void bio_uninit(struct bio *);
464 extern void bio_reset(struct bio *);
465 void bio_chain(struct bio *, struct bio *);
467 extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
468 extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *,
470 int bio_add_zone_append_page(struct bio *bio, struct page *page,
472 bool __bio_try_merge_page(struct bio *bio, struct page *page,
474 void __bio_add_page(struct bio *bio, struct page *page,
476 int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter);
477 void bio_release_pages(struct bio *bio, bool mark_dirty);
478 extern void bio_set_pages_dirty(struct bio *bio);
479 extern void bio_check_pages_dirty(struct bio *bio);
481 extern void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter,
482 struct bio *src, struct bvec_iter *src_iter);
483 extern void bio_copy_data(struct bio *dst, struct bio *src);
484 extern void bio_free_pages(struct bio *bio);
485 void bio_truncate(struct bio *bio, unsigned new_size);
486 void guard_bio_eod(struct bio *bio);
487 void zero_fill_bio(struct bio *bio);
489 extern const char *bio_devname(struct bio *bio, char *buffer);
491 #define bio_set_dev(bio, bdev) \ argument
493 bio_clear_flag(bio, BIO_REMAPPED); \
494 if ((bio)->bi_bdev != (bdev)) \
495 bio_clear_flag(bio, BIO_THROTTLED); \
496 (bio)->bi_bdev = (bdev); \
497 bio_associate_blkg(bio); \
507 #define bio_dev(bio) \ argument
508 disk_devt((bio)->bi_bdev->bd_disk)
511 void bio_associate_blkg(struct bio *bio);
512 void bio_associate_blkg_from_css(struct bio *bio,
514 void bio_clone_blkg_association(struct bio *dst, struct bio *src);
516 static inline void bio_associate_blkg(struct bio *bio) { } in bio_associate_blkg() argument
517 static inline void bio_associate_blkg_from_css(struct bio *bio, in bio_associate_blkg_from_css() argument
520 static inline void bio_clone_blkg_association(struct bio *dst, in bio_clone_blkg_association()
521 struct bio *src) { } in bio_clone_blkg_association()
532 struct bio *head;
533 struct bio *tail;
548 #define bio_list_for_each(bio, bl) \ argument
549 for (bio = (bl)->head; bio; bio = bio->bi_next)
554 struct bio *bio; in bio_list_size() local
556 bio_list_for_each(bio, bl) in bio_list_size()
562 static inline void bio_list_add(struct bio_list *bl, struct bio *bio) in bio_list_add() argument
564 bio->bi_next = NULL; in bio_list_add()
567 bl->tail->bi_next = bio; in bio_list_add()
569 bl->head = bio; in bio_list_add()
571 bl->tail = bio; in bio_list_add()
574 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio) in bio_list_add_head() argument
576 bio->bi_next = bl->head; in bio_list_add_head()
578 bl->head = bio; in bio_list_add_head()
581 bl->tail = bio; in bio_list_add_head()
611 static inline struct bio *bio_list_peek(struct bio_list *bl) in bio_list_peek()
616 static inline struct bio *bio_list_pop(struct bio_list *bl) in bio_list_pop()
618 struct bio *bio = bl->head; in bio_list_pop() local
620 if (bio) { in bio_list_pop()
625 bio->bi_next = NULL; in bio_list_pop()
628 return bio; in bio_list_pop()
631 static inline struct bio *bio_list_get(struct bio_list *bl) in bio_list_get()
633 struct bio *bio = bl->head; in bio_list_get() local
637 return bio; in bio_list_get()
644 static inline void bio_inc_remaining(struct bio *bio) in bio_inc_remaining() argument
646 bio_set_flag(bio, BIO_CHAIN); in bio_inc_remaining()
648 atomic_inc(&bio->__bi_remaining); in bio_inc_remaining()
705 extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
706 extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
707 extern bool bio_integrity_prep(struct bio *);
708 extern void bio_integrity_advance(struct bio *, unsigned int);
709 extern void bio_integrity_trim(struct bio *);
710 extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);
717 static inline void *bio_integrity(struct bio *bio) in bio_integrity() argument
732 static inline bool bio_integrity_prep(struct bio *bio) in bio_integrity_prep() argument
737 static inline int bio_integrity_clone(struct bio *bio, struct bio *bio_src, in bio_integrity_clone() argument
743 static inline void bio_integrity_advance(struct bio *bio, in bio_integrity_advance() argument
749 static inline void bio_integrity_trim(struct bio *bio) in bio_integrity_trim() argument
759 static inline bool bio_integrity_flagged(struct bio *bio, enum bip_flags flag) in bio_integrity_flagged() argument
764 static inline void *bio_integrity_alloc(struct bio * bio, gfp_t gfp, in bio_integrity_alloc() argument
770 static inline int bio_integrity_add_page(struct bio *bio, struct page *page, in bio_integrity_add_page() argument
785 static inline void bio_set_polled(struct bio *bio, struct kiocb *kiocb) in bio_set_polled() argument
787 bio->bi_opf |= REQ_HIPRI; in bio_set_polled()
789 bio->bi_opf |= REQ_NOWAIT; in bio_set_polled()
792 struct bio *blk_next_bio(struct bio *bio, unsigned int nr_pages, gfp_t gfp);