14 				       unsigned int bytes)  in dm_bvec_iter_rewind()  argument
18 	iter->bi_size += bytes;  in dm_bvec_iter_rewind()
19 	if (bytes <= iter->bi_bvec_done) {  in dm_bvec_iter_rewind()
20 		iter->bi_bvec_done -= bytes;  in dm_bvec_iter_rewind()
24 	bytes -= iter->bi_bvec_done;  in dm_bvec_iter_rewind()
27 	while (idx >= 0 && bytes && bytes > bv[idx].bv_len) {  in dm_bvec_iter_rewind()
28 		bytes -= bv[idx].bv_len;  in dm_bvec_iter_rewind()
32 	if (WARN_ONCE(idx < 0 && bytes,  in dm_bvec_iter_rewind()
34 		iter->bi_size -= bytes;  in dm_bvec_iter_rewind()
41 	iter->bi_bvec_done = bv[idx].bv_len - bytes;  in dm_bvec_iter_rewind()
50  * @bytes_done:	number of data bytes to rewind
52  * Description: This function calculates how many integrity bytes the
53  * number of completed data bytes correspond to and rewind the
60 	unsigned int bytes = bio_integrity_bytes(bi, bytes_done >> 9);  in dm_bio_integrity_rewind()  local
63 	dm_bvec_iter_rewind(bip->bip_vec, &bip->bip_iter, bytes);  in dm_bio_integrity_rewind()
94 static void dm_bio_crypt_rewind(struct bio *bio, unsigned int bytes)  in dm_bio_crypt_rewind()  argument
99 				   bytes >> bc->bc_key->data_unit_size_bits);  in dm_bio_crypt_rewind()
104 static inline void dm_bio_crypt_rewind(struct bio *bio, unsigned int bytes)  in dm_bio_crypt_rewind()  argument
111 				      struct bvec_iter *iter, unsigned int bytes)  in dm_bio_rewind_iter()  argument
113 	iter->bi_sector -= bytes >> 9;  in dm_bio_rewind_iter()
117 		iter->bi_size += bytes;  in dm_bio_rewind_iter()
119 		dm_bvec_iter_rewind(bio->bi_io_vec, iter, bytes);  in dm_bio_rewind_iter()
123  * dm_bio_rewind - update ->bi_iter of @bio by rewinding @bytes.
125  * @bytes: how many bytes to rewind
132 static void dm_bio_rewind(struct bio *bio, unsigned int bytes)  in dm_bio_rewind()  argument
135 		dm_bio_integrity_rewind(bio, bytes);  in dm_bio_rewind()
138 		dm_bio_crypt_rewind(bio, bytes);  in dm_bio_rewind()
140 	dm_bio_rewind_iter(bio, &bio->bi_iter, bytes);  in dm_bio_rewind()