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Searched refs:bvec (Results 1 – 25 of 75) sorted by relevance

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/Linux-v5.15/include/linux/
Dbvec.h59 #define __bvec_iter_bvec(bvec, iter) (&(bvec)[(iter).bi_idx]) argument
62 #define mp_bvec_iter_page(bvec, iter) \ argument
63 (__bvec_iter_bvec((bvec), (iter))->bv_page)
65 #define mp_bvec_iter_len(bvec, iter) \ argument
67 __bvec_iter_bvec((bvec), (iter))->bv_len - (iter).bi_bvec_done)
69 #define mp_bvec_iter_offset(bvec, iter) \ argument
70 (__bvec_iter_bvec((bvec), (iter))->bv_offset + (iter).bi_bvec_done)
72 #define mp_bvec_iter_page_idx(bvec, iter) \ argument
73 (mp_bvec_iter_offset((bvec), (iter)) / PAGE_SIZE)
75 #define mp_bvec_iter_bvec(bvec, iter) \ argument
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/Linux-v5.15/drivers/block/zram/
Dzram_drv.c59 static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec,
149 static inline bool is_partial_io(struct bio_vec *bvec) in is_partial_io() argument
151 return bvec->bv_len != PAGE_SIZE; in is_partial_io()
154 static inline bool is_partial_io(struct bio_vec *bvec) in is_partial_io() argument
184 static void update_position(u32 *index, int *offset, struct bio_vec *bvec) in update_position() argument
186 *index += (*offset + bvec->bv_len) / PAGE_SIZE; in update_position()
187 *offset = (*offset + bvec->bv_len) % PAGE_SIZE; in update_position()
585 static int read_from_bdev_async(struct zram *zram, struct bio_vec *bvec, in read_from_bdev_async() argument
596 if (!bio_add_page(bio, bvec->bv_page, bvec->bv_len, bvec->bv_offset)) { in read_from_bdev_async()
667 struct bio_vec bvec; in writeback_store() local
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/Linux-v5.15/block/
Dblk-map.c48 struct bio_vec *bvec; in bio_copy_from_iter() local
51 bio_for_each_segment_all(bvec, bio, iter_all) { in bio_copy_from_iter()
54 ret = copy_page_from_iter(bvec->bv_page, in bio_copy_from_iter()
55 bvec->bv_offset, in bio_copy_from_iter()
56 bvec->bv_len, in bio_copy_from_iter()
62 if (ret < bvec->bv_len) in bio_copy_from_iter()
79 struct bio_vec *bvec; in bio_copy_to_iter() local
82 bio_for_each_segment_all(bvec, bio, iter_all) { in bio_copy_to_iter()
85 ret = copy_page_to_iter(bvec->bv_page, in bio_copy_to_iter()
86 bvec->bv_offset, in bio_copy_to_iter()
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Dbio.c832 struct bio_vec *bvec; in bio_add_hw_page() local
848 bvec = &bio->bi_io_vec[bio->bi_vcnt - 1]; in bio_add_hw_page()
849 if (bvec_gap_to_prev(q, bvec, offset)) in bio_add_hw_page()
859 bvec = &bio->bi_io_vec[bio->bi_vcnt]; in bio_add_hw_page()
860 bvec->bv_page = page; in bio_add_hw_page()
861 bvec->bv_len = len; in bio_add_hw_page()
862 bvec->bv_offset = offset; in bio_add_hw_page()
1021 struct bio_vec *bvec; in bio_release_pages() local
1026 bio_for_each_segment_all(bvec, bio, iter_all) { in bio_release_pages()
1027 if (mark_dirty && !PageCompound(bvec->bv_page)) in bio_release_pages()
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Dblk-merge.c425 struct bio_vec *bvec, struct scatterlist *sglist, in blk_bvec_map_sg() argument
428 unsigned nbytes = bvec->bv_len; in blk_bvec_map_sg()
432 unsigned offset = bvec->bv_offset + total; in blk_bvec_map_sg()
433 unsigned len = min(get_max_segment_size(q, bvec->bv_page, in blk_bvec_map_sg()
435 struct page *page = bvec->bv_page; in blk_bvec_map_sg()
469 __blk_segment_map_sg_merge(struct request_queue *q, struct bio_vec *bvec, in __blk_segment_map_sg_merge() argument
473 int nbytes = bvec->bv_len; in __blk_segment_map_sg_merge()
481 if (!biovec_phys_mergeable(q, bvprv, bvec)) in __blk_segment_map_sg_merge()
493 struct bio_vec bvec, bvprv = { NULL }; in __blk_bios_map_sg() local
499 bio_for_each_bvec(bvec, bio, iter) { in __blk_bios_map_sg()
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Dbounce.c104 struct bio_vec *bvec, orig_vec; in bounce_end_io() local
111 bio_for_each_segment_all(bvec, bio, iter_all) { in bounce_end_io()
113 if (bvec->bv_page != orig_vec.bv_page) { in bounce_end_io()
114 dec_zone_page_state(bvec->bv_page, NR_BOUNCE); in bounce_end_io()
115 mempool_free(bvec->bv_page, &page_pool); in bounce_end_io()
/Linux-v5.15/fs/squashfs/
Dblock.c39 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in copy_bio_to_actor() local
47 int bytes_to_copy = min_t(int, bvec->bv_len - offset, in copy_bio_to_actor()
52 memcpy(actor_addr + actor_offset, bvec_virt(bvec) + offset, in copy_bio_to_actor()
65 if (offset >= bvec->bv_len) { in copy_bio_to_actor()
164 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in squashfs_read_data() local
179 data = bvec_virt(bvec); in squashfs_read_data()
181 if (offset < bvec->bv_len - 1) { in squashfs_read_data()
188 data = bvec_virt(bvec); in squashfs_read_data()
Dzlib_wrapper.c57 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in zlib_uncompress() local
78 avail = min(length, ((int)bvec->bv_len) - offset); in zlib_uncompress()
79 data = bvec_virt(bvec); in zlib_uncompress()
Dlzo_wrapper.c70 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()
Dzstd_wrapper.c72 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in zstd_uncompress() local
96 avail = min(length, ((int)bvec->bv_len) - offset); in zstd_uncompress()
97 data = bvec_virt(bvec); in zstd_uncompress()
Dlz4_wrapper.c96 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()
Dxz_wrapper.c124 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in squashfs_xz_uncompress() local
148 avail = min(length, ((int)bvec->bv_len) - offset); in squashfs_xz_uncompress()
149 data = bvec_virt(bvec); in squashfs_xz_uncompress()
/Linux-v5.15/drivers/nvme/target/
Dio-cmd-file.c119 iov_iter_bvec(&iter, rw, req->f.bvec, nr_segs, count); in nvmet_file_submit_bvec()
133 if (req->f.bvec != req->inline_bvec) { in nvmet_file_io_done()
135 kfree(req->f.bvec); in nvmet_file_io_done()
137 mempool_free(req->f.bvec, req->ns->bvec_pool); in nvmet_file_io_done()
167 nvmet_file_init_bvec(&req->f.bvec[bv_cnt], sg); in nvmet_file_execute_io()
168 len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io()
169 total_len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io()
255 req->f.bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec), in nvmet_file_execute_rw()
258 req->f.bvec = req->inline_bvec; in nvmet_file_execute_rw()
260 if (unlikely(!req->f.bvec)) { in nvmet_file_execute_rw()
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/Linux-v5.15/fs/9p/
Dvfs_addr.c41 struct bio_vec bvec = {.bv_page = page, .bv_len = PAGE_SIZE}; in v9fs_fid_readpage() local
53 iov_iter_bvec(&to, READ, &bvec, 1, PAGE_SIZE); in v9fs_fid_readpage()
155 struct bio_vec bvec; in v9fs_vfs_writepage_locked() local
163 bvec.bv_page = page; in v9fs_vfs_writepage_locked()
164 bvec.bv_offset = 0; in v9fs_vfs_writepage_locked()
165 bvec.bv_len = len; in v9fs_vfs_writepage_locked()
166 iov_iter_bvec(&from, WRITE, &bvec, 1, len); in v9fs_vfs_writepage_locked()
/Linux-v5.15/arch/m68k/emu/
Dnfblock.c64 struct bio_vec bvec; in nfhd_submit_bio() local
71 bio_for_each_segment(bvec, bio, iter) { in nfhd_submit_bio()
72 len = bvec.bv_len; in nfhd_submit_bio()
75 page_to_phys(bvec.bv_page) + bvec.bv_offset); in nfhd_submit_bio()
/Linux-v5.15/drivers/target/
Dtarget_core_file.c316 struct bio_vec *bvec; in fd_do_rw() local
321 bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL); in fd_do_rw()
322 if (!bvec) { in fd_do_rw()
328 bvec[i].bv_page = sg_page(sg); in fd_do_rw()
329 bvec[i].bv_len = sg->length; in fd_do_rw()
330 bvec[i].bv_offset = sg->offset; in fd_do_rw()
335 iov_iter_bvec(&iter, READ, bvec, sgl_nents, len); in fd_do_rw()
379 kfree(bvec); in fd_do_rw()
436 struct bio_vec *bvec; in fd_execute_write_same() local
460 bvec = kcalloc(nolb, sizeof(struct bio_vec), GFP_KERNEL); in fd_execute_write_same()
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/Linux-v5.15/drivers/block/
Dloop.c320 static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos) in lo_write_bvec() argument
325 iov_iter_bvec(&i, WRITE, bvec, 1, bvec->bv_len); in lo_write_bvec()
331 if (likely(bw == bvec->bv_len)) in lo_write_bvec()
336 (unsigned long long)*ppos, bvec->bv_len); in lo_write_bvec()
345 struct bio_vec bvec; in lo_write_simple() local
349 rq_for_each_segment(bvec, rq, iter) { in lo_write_simple()
350 ret = lo_write_bvec(lo->lo_backing_file, &bvec, &pos); in lo_write_simple()
367 struct bio_vec bvec, b; in lo_write_transfer() local
376 rq_for_each_segment(bvec, rq, iter) { in lo_write_transfer()
377 ret = lo_do_transfer(lo, WRITE, page, 0, bvec.bv_page, in lo_write_transfer()
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Dn64cart.c89 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()
97 pos += bvec.bv_len; in n64cart_submit_bio()
Dbrd.c289 struct bio_vec bvec; in brd_submit_bio() local
292 bio_for_each_segment(bvec, bio, iter) { in brd_submit_bio()
293 unsigned int len = bvec.bv_len; in brd_submit_bio()
297 WARN_ON_ONCE((bvec.bv_offset & (SECTOR_SIZE - 1)) || in brd_submit_bio()
300 err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset, in brd_submit_bio()
/Linux-v5.15/Documentation/block/
Dbiovecs.rst20 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
145 * The following helpers iterate over multi-page bvec. The passed 'struct
/Linux-v5.15/net/sunrpc/
Dsvcsock.c228 static void svc_flush_bvec(const struct bio_vec *bvec, size_t size, size_t seek) in svc_flush_bvec() argument
235 bvec_iter_advance(bvec, &bi, seek & PAGE_MASK); in svc_flush_bvec()
236 for_each_bvec(bv, bvec, bi, bi) in svc_flush_bvec()
240 static inline void svc_flush_bvec(const struct bio_vec *bvec, size_t size, in svc_flush_bvec() argument
256 struct bio_vec *bvec = rqstp->rq_bvec; in svc_tcp_read_msg() local
267 bvec[i].bv_page = rqstp->rq_pages[i]; in svc_tcp_read_msg()
268 bvec[i].bv_len = PAGE_SIZE; in svc_tcp_read_msg()
269 bvec[i].bv_offset = 0; in svc_tcp_read_msg()
274 iov_iter_bvec(&msg.msg_iter, READ, bvec, i, buflen); in svc_tcp_read_msg()
281 svc_flush_bvec(bvec, len, seek); in svc_tcp_read_msg()
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/Linux-v5.15/lib/
Diov_iter.c124 const struct bio_vec *bvec = i->bvec; \
128 bvec, (K)) \
129 i->nr_segs -= bvec - i->bvec; \
130 i->bvec = bvec; \
990 bvec_iter_advance(i->bvec, &bi, size); in iov_iter_bvec_advance()
992 i->bvec += bi.bi_idx; in iov_iter_bvec_advance()
1083 const struct bio_vec *bvec = i->bvec; in iov_iter_revert() local
1085 size_t n = (--bvec)->bv_len; in iov_iter_revert()
1088 i->bvec = bvec; in iov_iter_revert()
1119 return min(i->count, i->bvec->bv_len - i->iov_offset); in iov_iter_single_seg_count()
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/Linux-v5.15/drivers/nvdimm/
Dblk.c171 struct bio_vec bvec; in nd_blk_submit_bio() local
183 bio_for_each_segment(bvec, bio, iter) { in nd_blk_submit_bio()
184 unsigned int len = bvec.bv_len; in nd_blk_submit_bio()
187 err = nsblk_do_bvec(nsblk, bip, bvec.bv_page, len, in nd_blk_submit_bio()
188 bvec.bv_offset, rw, iter.bi_sector); in nd_blk_submit_bio()
Dpmem.c199 struct bio_vec bvec; in pmem_submit_bio() local
210 bio_for_each_segment(bvec, bio, iter) { in pmem_submit_bio()
212 rc = pmem_do_write(pmem, bvec.bv_page, bvec.bv_offset, in pmem_submit_bio()
213 iter.bi_sector, bvec.bv_len); in pmem_submit_bio()
215 rc = pmem_do_read(pmem, bvec.bv_page, bvec.bv_offset, in pmem_submit_bio()
216 iter.bi_sector, bvec.bv_len); in pmem_submit_bio()
/Linux-v5.15/arch/xtensa/platforms/iss/
Dsimdisk.c106 struct bio_vec bvec; in simdisk_submit_bio() local
110 bio_for_each_segment(bvec, bio, iter) { in simdisk_submit_bio()
111 char *buffer = kmap_atomic(bvec.bv_page) + bvec.bv_offset; in simdisk_submit_bio()
112 unsigned len = bvec.bv_len >> SECTOR_SHIFT; in simdisk_submit_bio()

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