Searched refs:bvec (Results 1 - 25 of 98) sorted by relevance

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/linux-master/include/linux/
H A Dbvec.h3 * bvec iterator
25 * The following holds for a bvec if n * PAGE_SIZE < bv_offset + bv_len:
38 * bvec_set_page - initialize a bvec based off a struct page
39 * @bv: bvec to initialize
40 * @page: page the bvec should point to
41 * @len: length of the bvec
53 * bvec_set_folio - initialize a bvec based off a struct folio
54 * @bv: bvec to initialize
55 * @folio: folio the bvec should point to
56 * @len: length of the bvec
204 bvec_advance(const struct bio_vec *bvec, struct bvec_iter_all *iter_all) argument
233 bvec_kmap_local(struct bio_vec *bvec) argument
244 memcpy_from_bvec(char *to, struct bio_vec *bvec) argument
255 memcpy_to_bvec(struct bio_vec *bvec, const char *from) argument
266 memzero_bvec(struct bio_vec *bvec) argument
277 bvec_virt(struct bio_vec *bvec) argument
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H A Diov_iter.h12 #include <linux/bvec.h>
111 const struct bio_vec *p = iter->bvec;
136 iter->nr_segs -= p - iter->bvec;
137 iter->bvec = p;
/linux-master/block/
H A Dbio-integrity.c206 static int bio_integrity_copy_user(struct bio *bio, struct bio_vec *bvec, argument
221 iov_iter_bvec(&iter, direction, bvec, nr_vecs, len);
232 * We need to preserve the original bvec and the number of vecs
244 bio_integrity_unpin_bvec(bvec, nr_vecs, false);
246 memcpy(&bip->bip_vec[1], bvec, nr_vecs * sizeof(*bvec));
265 static int bio_integrity_init_user(struct bio *bio, struct bio_vec *bvec, argument
274 memcpy(bip->bip_vec, bvec, nr_vecs * sizeof(*bvec));
281 static unsigned int bvec_from_pages(struct bio_vec *bvec, struc argument
317 struct bio_vec stack_vec[UIO_FASTIOV], *bvec = stack_vec; local
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H A Dblk-map.c50 struct bio_vec *bvec; local
53 bio_for_each_segment_all(bvec, bio, iter_all) {
56 ret = copy_page_from_iter(bvec->bv_page,
57 bvec->bv_offset,
58 bvec->bv_len,
64 if (ret < bvec->bv_len)
81 struct bio_vec *bvec; local
84 bio_for_each_segment_all(bvec, bio, iter_all) {
87 ret = copy_page_to_iter(bvec->bv_page,
88 bvec
452 struct bio_vec *bvec; local
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H A Dbounce.c82 * its bvec from start to end, but the @from->bi_iter can't be
105 struct bio_vec *bvec, orig_vec; local
112 bio_for_each_segment_all(bvec, bio, iter_all) {
114 if (bvec->bv_page != orig_vec.bv_page) {
115 dec_zone_page_state(bvec->bv_page, NR_BOUNCE);
116 mempool_free(bvec->bv_page, &page_pool);
239 * so retrieve bvec from the table directly. This way is safe
240 * because the 'bio' is single-page bvec.
H A Dblk-merge.c33 return; /* this bio only has a single bvec */
39 else /* in the middle of bvec */
45 * iter.bi_bvec_done records actual length of the last bvec
78 * one single bvec of 'nb', otherwise the 'nb' can't
208 * bvec_split_segs - verify whether or not a bvec should be split in the middle
210 * @bv: [in] bvec to examine
220 * When splitting a bio, it can happen that a bvec is encountered that is too
251 /* tell the caller to split the bvec if it is too big to fit */
459 struct bio_vec *bvec, struct scatterlist *sglist,
462 unsigned nbytes = bvec
458 blk_bvec_map_sg(struct request_queue *q, struct bio_vec *bvec, struct scatterlist *sglist, struct scatterlist **sg) argument
503 __blk_segment_map_sg_merge(struct request_queue *q, struct bio_vec *bvec, struct bio_vec *bvprv, struct scatterlist **sg) argument
527 struct bio_vec bvec, bvprv = { NULL }; local
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/linux-master/fs/erofs/
H A Dzdata.c34 struct z_erofs_bvec bvec[total]; \
72 /* L: inline a certain number of bvec for bootstrap */
198 unsigned long base = (unsigned long)((struct z_erofs_bvset *)0)->bvec;
230 struct z_erofs_bvec *bvec,
250 iter->bvset->bvec[iter->cur++] = *bvec;
255 struct z_erofs_bvec *bvec,
262 *bvec = iter->bvset->bvec[iter->cur++];
717 struct z_erofs_bvec *bvec, boo
229 z_erofs_bvec_enqueue(struct z_erofs_bvec_iter *iter, struct z_erofs_bvec *bvec, struct page **candidate_bvpage, struct page **pagepool) argument
254 z_erofs_bvec_dequeue(struct z_erofs_bvec_iter *iter, struct z_erofs_bvec *bvec, struct page **old_bvpage) argument
716 z_erofs_attach_page(struct z_erofs_decompress_frontend *fe, struct z_erofs_bvec *bvec, bool exclusive) argument
1088 struct z_erofs_bvec bvec; member in struct:z_erofs_bvec_item
1092 z_erofs_do_decompressed_bvec(struct z_erofs_decompress_backend *be, struct z_erofs_bvec *bvec) argument
1166 struct z_erofs_bvec bvec; local
1191 struct z_erofs_bvec *bvec = &pcl->compressed_bvecs[i]; local
1412 z_erofs_fill_bio_vec(struct bio_vec *bvec, struct z_erofs_decompress_frontend *f, struct z_erofs_pcluster *pcl, unsigned int nr, struct address_space *mc) argument
1619 struct bio_vec bvec; local
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/linux-master/fs/squashfs/
H A Dzstd_wrapper.c72 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
100 avail = min(length, ((int)bvec->bv_len) - offset);
101 data = bvec_virt(bvec);
H A Dzlib_wrapper.c57 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
83 avail = min(length, ((int)bvec->bv_len) - offset);
84 data = bvec_virt(bvec);
H A Dlzo_wrapper.c70 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
77 int avail = min(bytes, ((int)bvec->bv_len) - offset);
79 data = bvec_virt(bvec);
H A Dlz4_wrapper.c96 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
102 int avail = min(bytes, ((int)bvec->bv_len) - offset);
104 data = bvec_virt(bvec);
H A Dblock.c39 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
50 int bytes_to_copy = min_t(int, bvec->bv_len - offset,
56 memcpy(actor_addr + actor_offset, bvec_virt(bvec) +
69 if (offset >= bvec->bv_len) {
286 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
301 data = bvec_virt(bvec);
303 if (offset < bvec->bv_len - 1) {
310 data = bvec_virt(bvec);
H A Dxz_wrapper.c124 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); local
152 avail = min(length, ((int)bvec->bv_len) - offset);
153 data = bvec_virt(bvec);
/linux-master/lib/
H A Diov_iter.c3 #include <linux/bvec.h>
493 const struct bio_vec *bvec, *end; local
501 for (bvec = i->bvec, end = bvec + i->nr_segs; bvec < end; bvec++) {
502 if (likely(size < bvec->bv_len))
504 size -= bvec->bv_len;
507 i->nr_segs -= bvec
568 const struct bio_vec *bvec = i->bvec; local
626 iov_iter_bvec(struct iov_iter *i, unsigned int direction, const struct bio_vec *bvec, unsigned long nr_segs, size_t count) argument
719 const struct bio_vec *bvec = i->bvec; local
803 const struct bio_vec *bvec = i->bvec; local
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H A Dkunit_iov_iter.c14 #include <linux/bvec.h>
218 struct bio_vec *bvec, unsigned int bvmax,
239 bvec[i].bv_len += pr->to;
241 bvec_set_page(&bvec[i], page, pr->to - pr->from, pr->from);
251 iov_iter_bvec(iter, dir, bvec, i, size);
261 struct bio_vec bvec[8]; local
277 iov_kunit_load_bvec(test, &iter, READ, bvec, ARRAY_SIZE(bvec),
315 struct bio_vec bvec[8]; local
331 iov_kunit_load_bvec(test, &iter, WRITE, bvec, ARRAY_SIZ
216 iov_kunit_load_bvec(struct kunit *test, struct iov_iter *iter, int dir, struct bio_vec *bvec, unsigned int bvmax, struct page **pages, size_t npages, size_t bufsize, const struct bvec_test_range *pr) argument
610 struct bio_vec bvec[8]; local
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/linux-master/drivers/block/
H A Dn64cart.c60 * Process a single bvec of a bio.
89 struct bio_vec bvec; local
94 bio_for_each_segment(bvec, bio, iter) {
95 if (!n64cart_do_bvec(dev, &bvec, pos)) {
99 pos += bvec.bv_len;
H A Dloop.c87 struct bio_vec *bvec; member in struct:loop_cmd
239 static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos) argument
244 iov_iter_bvec(&i, ITER_SOURCE, bvec, 1, bvec->bv_len);
248 if (likely(bw == bvec->bv_len))
253 (unsigned long long)*ppos, bvec->bv_len);
262 struct bio_vec bvec; local
266 rq_for_each_segment(bvec, rq, iter) {
267 ret = lo_write_bvec(lo->lo_backing_file, &bvec, &pos);
279 struct bio_vec bvec; local
395 struct bio_vec *bvec; local
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H A Dbrd.c208 * Process a single bvec of a bio.
247 struct bio_vec bvec; local
250 bio_for_each_segment(bvec, bio, iter) {
251 unsigned int len = bvec.bv_len;
255 WARN_ON_ONCE((bvec.bv_offset & (SECTOR_SIZE - 1)) ||
258 err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset,
/linux-master/drivers/nvme/target/
H A Dio-cmd-file.c94 iov_iter_bvec(&iter, rw, req->f.bvec, nr_segs, count);
108 if (req->f.bvec != req->inline_bvec) {
110 kfree(req->f.bvec);
112 mempool_free(req->f.bvec, req->ns->bvec_pool);
142 bvec_set_page(&req->f.bvec[bv_cnt], sg_page(sg), sg->length,
144 len += req->f.bvec[bv_cnt].bv_len;
145 total_len += req->f.bvec[bv_cnt].bv_len;
231 req->f.bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec),
234 req->f.bvec = req->inline_bvec;
236 if (unlikely(!req->f.bvec)) {
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/linux-master/fs/netfs/
H A Dbuffered_read.c280 struct bio_vec *bvec; local
289 bvec = kmalloc_array(nr_bvec, sizeof(*bvec), GFP_KERNEL);
290 if (!bvec)
299 rreq->direct_bv = bvec;
302 bvec_set_folio(&bvec[i++], folio, from, 0);
307 bvec_set_folio(&bvec[i++], sink, part, 0);
311 bvec_set_folio(&bvec[i++], folio, flen - to, to);
312 iov_iter_bvec(&rreq->iter, ITER_DEST, bvec, i, rreq->len);
/linux-master/arch/m68k/emu/
H A Dnfblock.c63 struct bio_vec bvec; local
70 bio_for_each_segment(bvec, bio, iter) {
71 len = bvec.bv_len;
74 page_to_phys(bvec.bv_page) + bvec.bv_offset);
/linux-master/mm/
H A Dpage_io.c245 struct bio_vec bvec[SWAP_CLUSTER_MAX]; member in struct:swap_iocb
267 struct page *page = sio->bvec[0].bv_page;
284 page = sio->bvec[p].bv_page;
291 end_page_writeback(sio->bvec[p].bv_page);
323 bvec_set_folio(&sio->bvec[sio->pages], folio, folio_size(folio), 0);
326 if (sio->pages == ARRAY_SIZE(sio->bvec) || !wbc->swap_plug) {
398 iov_iter_bvec(&from, ITER_SOURCE, sio->bvec, sio->pages, sio->len);
411 struct folio *folio = page_folio(sio->bvec[p].bv_page);
419 struct folio *folio = page_folio(sio->bvec[p].bv_page);
451 bvec_set_folio(&sio->bvec[si
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/linux-master/io_uring/
H A Drsrc.c142 unpin_user_page(imu->bvec[i].bv_page);
833 if (!PageCompound(imu->bvec[j].bv_page))
835 if (compound_head(imu->bvec[j].bv_page) == hpage)
935 /* If it's a huge page, try to coalesce them into a single bvec entry */
961 imu = kvmalloc(struct_size(imu, bvec, nr_pages), GFP_KERNEL);
981 bvec_set_page(&imu->bvec[0], pages[0], size, off);
988 bvec_set_page(&imu->bvec[i], pages[i], vec_len, off);
1079 iov_iter_bvec(iter, ddir, imu->bvec, imu->nr_bvecs, offset + len);
1090 * first and last bvec
1093 * If the offset is within the first bvec (o
1098 const struct bio_vec *bvec = imu->bvec; local
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/linux-master/arch/xtensa/platforms/iss/
H A Dsimdisk.c106 struct bio_vec bvec; local
110 bio_for_each_segment(bvec, bio, iter) {
111 char *buffer = bvec_kmap_local(&bvec);
112 unsigned len = bvec.bv_len >> SECTOR_SHIFT;
/linux-master/net/rds/
H A Dtcp_send.c76 struct bio_vec bvec; local
120 bvec_set_page(&bvec, sg_page(&rm->data.op_sg[sg]),
123 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1,

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