/linux/include/linux/ |
H A D | bvec.h | 98 #define __bvec_iter_bvec(bvec, iter) (&(bvec)[(iter).bi_idx]) argument 125 #define bvec_iter_len(bvec, iter) \ argument 129 #define bvec_iter_page(bvec, iter) \ argument 213 bv->bv_page = bvec->bv_page + (bvec->bv_offset >> PAGE_SHIFT); in bvec_advance() 217 bvec->bv_len - iter_all->done); in bvec_advance() 220 if (iter_all->done == bvec->bv_len) { in bvec_advance() 235 return kmap_local_page(bvec->bv_page) + bvec->bv_offset; in bvec_kmap_local() 246 memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len); in memcpy_from_bvec() 257 memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len); in memcpy_to_bvec() 268 memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len); in memzero_bvec() [all …]
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/linux/fs/erofs/ |
H A D | zdata.c | 250 iter->bvset->bvec[iter->cur++] = *bvec; in z_erofs_bvec_enqueue() 262 *bvec = iter->bvset->bvec[iter->cur++]; in z_erofs_bvec_dequeue() 1100 bvec->offset + bvec->end == be->pcl->length)) { in z_erofs_do_decompressed_bvec() 1111 item->bvec = *bvec; in z_erofs_do_decompressed_bvec() 1127 cur = bvi->bvec.offset < 0 ? -bvi->bvec.offset : 0; in z_erofs_fill_other_copies() 1129 bvi->bvec.end); in z_erofs_fill_other_copies() 1426 bvec->bv_offset = 0; in z_erofs_fill_bio_vec() 1456 bvec->bv_len = round_up(zbv.end, bs) - bvec->bv_offset; in z_erofs_fill_bio_vec() 1499 bvec->bv_page = page; in z_erofs_fill_bio_vec() 1642 if (!bvec.bv_page) in z_erofs_submit_queue() [all …]
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/linux/block/ |
H A D | bio-integrity.c | 243 iov_iter_bvec(&iter, direction, bvec, nr_vecs, len); in bio_integrity_copy_user() 266 bio_integrity_unpin_bvec(bvec, nr_vecs, false); in bio_integrity_copy_user() 268 memcpy(&bip->bip_vec[1], bvec, nr_vecs * sizeof(*bvec)); in bio_integrity_copy_user() 296 memcpy(bip->bip_vec, bvec, nr_vecs * sizeof(*bvec)); in bio_integrity_init_user() 361 bvec = kcalloc(nr_vecs, sizeof(*bvec), GFP_KERNEL); in bio_integrity_map_user() 362 if (!bvec) in bio_integrity_map_user() 385 if (bvec != stack_vec) in bio_integrity_map_user() 386 kfree(bvec); in bio_integrity_map_user() 391 bio_integrity_unpin_bvec(bvec, nr_bvecs, false); in bio_integrity_map_user() 393 if (bvec != stack_vec) in bio_integrity_map_user() [all …]
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H A D | blk-map.c | 50 struct bio_vec *bvec; in bio_copy_from_iter() local 57 bvec->bv_offset, in bio_copy_from_iter() 58 bvec->bv_len, in bio_copy_from_iter() 64 if (ret < bvec->bv_len) in bio_copy_from_iter() 81 struct bio_vec *bvec; in bio_copy_to_iter() local 88 bvec->bv_offset, in bio_copy_to_iter() 89 bvec->bv_len, in bio_copy_to_iter() 95 if (ret < bvec->bv_len) in bio_copy_to_iter() 452 struct bio_vec *bvec; in bio_copy_kern_endio_read() local 456 memcpy_from_bvec(p, bvec); in bio_copy_kern_endio_read() [all …]
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H A D | blk-merge.c | 463 unsigned nbytes = bvec->bv_len; in blk_bvec_map_sg() 467 unsigned offset = bvec->bv_offset + total; in blk_bvec_map_sg() 469 bvec->bv_page, offset), nbytes); in blk_bvec_map_sg() 470 struct page *page = bvec->bv_page; in blk_bvec_map_sg() 508 int nbytes = bvec->bv_len; in __blk_segment_map_sg_merge() 516 if (!biovec_phys_mergeable(q, bvprv, bvec)) in __blk_segment_map_sg_merge() 528 struct bio_vec bvec, bvprv = { NULL }; in __blk_bios_map_sg() local 534 bio_for_each_bvec(bvec, bio, iter) { in __blk_bios_map_sg() 544 if (bvec.bv_offset + bvec.bv_len <= PAGE_SIZE) in __blk_bios_map_sg() 545 nsegs += __blk_bvec_map_sg(bvec, sglist, sg); in __blk_bios_map_sg() [all …]
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H A D | bounce.c | 105 struct bio_vec *bvec, orig_vec; in bounce_end_io() local 112 bio_for_each_segment_all(bvec, bio, iter_all) { in bounce_end_io() 114 if (bvec->bv_page != orig_vec.bv_page) { in bounce_end_io() 115 dec_zone_page_state(bvec->bv_page, NR_BOUNCE); in bounce_end_io() 116 mempool_free(bvec->bv_page, &page_pool); in bounce_end_io()
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/linux/lib/ |
H A D | iov_iter.c | 501 for (bvec = i->bvec, end = bvec + i->nr_segs; bvec < end; bvec++) { in iov_iter_bvec_advance() 507 i->nr_segs -= bvec - i->bvec; in iov_iter_bvec_advance() 508 i->bvec = bvec; in iov_iter_bvec_advance() 568 const struct bio_vec *bvec = i->bvec; in iov_iter_revert() local 573 i->bvec = bvec; in iov_iter_revert() 634 .bvec = bvec, in iov_iter_bvec() 719 const struct bio_vec *bvec = i->bvec; in iov_iter_aligned_bvec() local 733 bvec++; in iov_iter_aligned_bvec() 803 const struct bio_vec *bvec = i->bvec; in iov_iter_alignment_bvec() local 814 bvec++; in iov_iter_alignment_bvec() [all …]
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H A D | kunit_iov_iter.c | 218 struct bio_vec *bvec, unsigned int bvmax, in iov_kunit_load_bvec() argument 239 bvec[i].bv_len += pr->to; in iov_kunit_load_bvec() 241 bvec_set_page(&bvec[i], page, pr->to - pr->from, pr->from); in iov_kunit_load_bvec() 251 iov_iter_bvec(iter, dir, bvec, i, size); in iov_kunit_load_bvec() 261 struct bio_vec bvec[8]; in iov_kunit_copy_to_bvec() local 277 iov_kunit_load_bvec(test, &iter, READ, bvec, ARRAY_SIZE(bvec), in iov_kunit_copy_to_bvec() 315 struct bio_vec bvec[8]; in iov_kunit_copy_from_bvec() local 331 iov_kunit_load_bvec(test, &iter, WRITE, bvec, ARRAY_SIZE(bvec), in iov_kunit_copy_from_bvec() 610 struct bio_vec bvec[8]; in iov_kunit_extract_pages_bvec() local 619 iov_kunit_load_bvec(test, &iter, READ, bvec, ARRAY_SIZE(bvec), in iov_kunit_extract_pages_bvec()
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/linux/drivers/nvme/target/ |
H A D | io-cmd-file.c | 94 iov_iter_bvec(&iter, rw, req->f.bvec, nr_segs, count); in nvmet_file_submit_bvec() 108 if (req->f.bvec != req->inline_bvec) { in nvmet_file_io_done() 110 kfree(req->f.bvec); in nvmet_file_io_done() 112 mempool_free(req->f.bvec, req->ns->bvec_pool); in nvmet_file_io_done() 142 bvec_set_page(&req->f.bvec[bv_cnt], sg_page(sg), sg->length, in nvmet_file_execute_io() 144 len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io() 145 total_len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io() 231 req->f.bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec), in nvmet_file_execute_rw() 234 req->f.bvec = req->inline_bvec; in nvmet_file_execute_rw() 236 if (unlikely(!req->f.bvec)) { in nvmet_file_execute_rw() [all …]
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/linux/mm/ |
H A D | page_io.c | 246 struct bio_vec bvec[SWAP_CLUSTER_MAX]; member 268 struct page *page = sio->bvec[0].bv_page; in sio_write_complete() 285 page = sio->bvec[p].bv_page; in sio_write_complete() 292 end_page_writeback(sio->bvec[p].bv_page); in sio_write_complete() 324 bvec_set_folio(&sio->bvec[sio->pages], folio, folio_size(folio), 0); in swap_writepage_fs() 327 if (sio->pages == ARRAY_SIZE(sio->bvec) || !wbc->swap_plug) { in swap_writepage_fs() 399 iov_iter_bvec(&from, ITER_SOURCE, sio->bvec, sio->pages, sio->len); in swap_write_unplug() 412 struct folio *folio = page_folio(sio->bvec[p].bv_page); in sio_read_complete() 420 struct folio *folio = page_folio(sio->bvec[p].bv_page); in sio_read_complete() 455 if (sio->pages == ARRAY_SIZE(sio->bvec) || !plug) { in swap_read_folio_fs() [all …]
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/linux/fs/squashfs/ |
H A D | block.c | 39 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in copy_bio_to_actor() local 50 int bytes_to_copy = min_t(int, bvec->bv_len - offset, in copy_bio_to_actor() 56 memcpy(actor_addr + actor_offset, bvec_virt(bvec) + in copy_bio_to_actor() 69 if (offset >= bvec->bv_len) { in copy_bio_to_actor() 286 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in squashfs_read_data() local 301 data = bvec_virt(bvec); in squashfs_read_data() 303 if (offset < bvec->bv_len - 1) { in squashfs_read_data() 310 data = bvec_virt(bvec); in squashfs_read_data()
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H A D | lzo_wrapper.c | 70 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in lzo_uncompress() local 77 int avail = min(bytes, ((int)bvec->bv_len) - offset); in lzo_uncompress() 79 data = bvec_virt(bvec); in lzo_uncompress()
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H A D | zlib_wrapper.c | 57 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in zlib_uncompress() local 83 avail = min(length, ((int)bvec->bv_len) - offset); in zlib_uncompress() 84 data = bvec_virt(bvec); in zlib_uncompress()
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H A D | lz4_wrapper.c | 96 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in lz4_uncompress() local 102 int avail = min(bytes, ((int)bvec->bv_len) - offset); in lz4_uncompress() 104 data = bvec_virt(bvec); in lz4_uncompress()
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H A D | zstd_wrapper.c | 72 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in zstd_uncompress() local 100 avail = min(length, ((int)bvec->bv_len) - offset); in zstd_uncompress() 101 data = bvec_virt(bvec); in zstd_uncompress()
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H A D | xz_wrapper.c | 124 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in squashfs_xz_uncompress() local 152 avail = min(length, ((int)bvec->bv_len) - offset); in squashfs_xz_uncompress() 153 data = bvec_virt(bvec); in squashfs_xz_uncompress()
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/linux/arch/m68k/emu/ |
H A D | nfblock.c | 63 struct bio_vec bvec; in nfhd_submit_bio() local 70 bio_for_each_segment(bvec, bio, iter) { in nfhd_submit_bio() 71 len = bvec.bv_len; in nfhd_submit_bio() 74 page_to_phys(bvec.bv_page) + bvec.bv_offset); in nfhd_submit_bio()
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/linux/drivers/block/ |
H A D | n64cart.c | 89 struct bio_vec bvec; in n64cart_submit_bio() local 94 bio_for_each_segment(bvec, bio, iter) { in n64cart_submit_bio() 95 if (!n64cart_do_bvec(dev, &bvec, pos)) { in n64cart_submit_bio() 99 pos += bvec.bv_len; in n64cart_submit_bio()
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H A D | loop.c | 87 struct bio_vec *bvec; member 244 iov_iter_bvec(&i, ITER_SOURCE, bvec, 1, bvec->bv_len); in lo_write_bvec() 262 struct bio_vec bvec; in lo_write_simple() local 285 iov_iter_bvec(&i, ITER_DEST, &bvec, 1, bvec.bv_len); in lo_read_simple() 399 kfree(cmd->bvec); in lo_rw_aio_do_completion() 400 cmd->bvec = NULL; in lo_rw_aio_do_completion() 434 if (!bvec) in lo_rw_aio() 436 cmd->bvec = bvec; in lo_rw_aio() 445 *bvec = tmp; in lo_rw_aio() 446 bvec++; in lo_rw_aio() [all …]
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H A D | brd.c | 246 struct bio_vec bvec; in brd_submit_bio() local 255 bio_for_each_segment(bvec, bio, iter) { in brd_submit_bio() 256 unsigned int len = bvec.bv_len; in brd_submit_bio() 260 WARN_ON_ONCE((bvec.bv_offset & (SECTOR_SIZE - 1)) || in brd_submit_bio() 263 err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset, in brd_submit_bio()
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/linux/io_uring/ |
H A D | rsrc.c | 144 unpin_user_page(imu->bvec[i].bv_page); in io_buffer_unmap() 833 if (!PageCompound(imu->bvec[j].bv_page)) in headpage_already_acct() 835 if (compound_head(imu->bvec[j].bv_page) == hpage) in headpage_already_acct() 945 bvec_set_page(&imu->bvec[0], pages[0], size, off); in io_sqe_buffer_register() 1062 const struct bio_vec *bvec = imu->bvec; in io_import_fixed() local 1064 if (offset < bvec->bv_len) { in io_import_fixed() 1070 iter->bvec = bvec; in io_import_fixed() 1071 iter->nr_segs = bvec->bv_len; in io_import_fixed() 1078 offset -= bvec->bv_len; in io_import_fixed() 1081 iter->bvec = bvec + seg_skip; in io_import_fixed() [all …]
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/linux/fs/netfs/ |
H A D | buffered_read.c | 296 struct bio_vec *bvec; in netfs_read_folio() local 305 bvec = kmalloc_array(nr_bvec, sizeof(*bvec), GFP_KERNEL); in netfs_read_folio() 306 if (!bvec) in netfs_read_folio() 315 rreq->direct_bv = bvec; in netfs_read_folio() 318 bvec_set_folio(&bvec[i++], folio, from, 0); in netfs_read_folio() 323 bvec_set_folio(&bvec[i++], sink, part, 0); in netfs_read_folio() 327 bvec_set_folio(&bvec[i++], folio, flen - to, to); in netfs_read_folio() 328 iov_iter_bvec(&rreq->iter, ITER_DEST, bvec, i, rreq->len); in netfs_read_folio()
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/linux/Documentation/block/ |
H A D | biovecs.rst | 20 bytes completed in the current bvec. 43 As of 5.12 bvec segments with zero bv_len are not supported. 52 exactly one bvec at a time - for example, bio_copy_data() in block/bio.c, 60 coding bvec iterators before, and having common implementation considerably 65 it somewhere else if there was an error) had to save the entire bvec array 68 * Biovecs can be shared between multiple bios - a bvec iter can represent an 76 bios with more than a single bvec! Now, we can efficiently split arbitrary 88 fine to _most_ devices, but since accessing the raw bvec array was the 90 since all drivers _must_ go through the bvec iterator - and have been 146 * The following helpers iterate over multi-page bvec. The passed 'struct
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/linux/drivers/target/ |
H A D | target_core_file.c | 318 struct bio_vec *bvec; in fd_do_rw() local 323 bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL); in fd_do_rw() 324 if (!bvec) { in fd_do_rw() 334 iov_iter_bvec(&iter, is_write, bvec, sgl_nents, len); in fd_do_rw() 378 kfree(bvec); in fd_do_rw() 435 struct bio_vec *bvec; in fd_execute_write_same() local 458 bvec = kcalloc(nolb, sizeof(struct bio_vec), GFP_KERNEL); in fd_execute_write_same() 459 if (!bvec) in fd_execute_write_same() 463 bvec_set_page(&bvec[i], sg_page(&cmd->t_data_sg[0]), in fd_execute_write_same() 469 iov_iter_bvec(&iter, ITER_SOURCE, bvec, nolb, len); in fd_execute_write_same() [all …]
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/linux/net/rds/ |
H A D | tcp_send.c | 76 struct bio_vec bvec; in rds_tcp_xmit() local 120 bvec_set_page(&bvec, sg_page(&rm->data.op_sg[sg]), in rds_tcp_xmit() 123 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, in rds_tcp_xmit()
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