| /kernel/linux/linux-5.10/include/linux/ |
| D | bvec.h | 58 #define __bvec_iter_bvec(bvec, iter) (&(bvec)[(iter).bi_idx]) argument
61 #define mp_bvec_iter_page(bvec, iter) \ argument
62 (__bvec_iter_bvec((bvec), (iter))->bv_page)
64 #define mp_bvec_iter_len(bvec, iter) \ argument
66 __bvec_iter_bvec((bvec), (iter))->bv_len - (iter).bi_bvec_done)
68 #define mp_bvec_iter_offset(bvec, iter) \ argument
69 (__bvec_iter_bvec((bvec), (iter))->bv_offset + (iter).bi_bvec_done)
71 #define mp_bvec_iter_page_idx(bvec, iter) \ argument
72 (mp_bvec_iter_offset((bvec), (iter)) / PAGE_SIZE)
74 #define mp_bvec_iter_bvec(bvec, iter) \ argument
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| D | bio.h | 175 #define bio_iter_last(bvec, iter) ((iter).bi_size == (bvec).bv_len) argument
507 static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags) in bvec_kmap_irq() argument
516 addr = (unsigned long) kmap_atomic(bvec->bv_page); in bvec_kmap_irq()
520 return (char *) addr + bvec->bv_offset; in bvec_kmap_irq()
532 static inline char *bvec_kmap_irq(struct bio_vec *bvec, unsigned long *flags) in bvec_kmap_irq() argument
534 return page_address(bvec->bv_page) + bvec->bv_offset; in bvec_kmap_irq()
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| /kernel/linux/linux-5.10/fs/squashfs/ |
| D | block.c | 39 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()
53 page_address(bvec->bv_page) + bvec->bv_offset + offset, in copy_bio_to_actor()
66 if (offset >= bvec->bv_len) { in copy_bio_to_actor()
165 struct bio_vec *bvec = bvec_init_iter_all(&iter_all); in squashfs_read_data() local
180 data = page_address(bvec->bv_page) + bvec->bv_offset; in squashfs_read_data()
182 if (offset < bvec->bv_len - 1) { in squashfs_read_data()
189 data = page_address(bvec->bv_page) + bvec->bv_offset; in squashfs_read_data()
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| D | zlib_wrapper.c | 57 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 = page_address(bvec->bv_page) + bvec->bv_offset; in zlib_uncompress()
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| 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 = page_address(bvec->bv_page) + bvec->bv_offset; in lzo_uncompress()
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| D | zstd_wrapper.c | 72 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 = page_address(bvec->bv_page) + bvec->bv_offset; in zstd_uncompress()
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| 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 = page_address(bvec->bv_page) + bvec->bv_offset; in lz4_uncompress()
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| D | xz_wrapper.c | 124 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 = page_address(bvec->bv_page) + bvec->bv_offset; in squashfs_xz_uncompress()
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| /kernel/linux/linux-5.10/drivers/block/zram/ |
| D | zram_drv.c | 63 static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec,
95 static inline bool is_partial_io(struct bio_vec *bvec) in is_partial_io() argument
97 return bvec->bv_len != PAGE_SIZE; in is_partial_io()
100 static inline bool is_partial_io(struct bio_vec *bvec) in is_partial_io() argument
130 static void update_position(u32 *index, int *offset, struct bio_vec *bvec) in update_position() argument
132 *index += (*offset + bvec->bv_len) / PAGE_SIZE; in update_position()
133 *offset = (*offset + bvec->bv_len) % PAGE_SIZE; in update_position()
541 static int read_from_bdev_async(struct zram *zram, struct bio_vec *bvec, in read_from_bdev_async() argument
552 if (!bio_add_page(bio, bvec->bv_page, bvec->bv_len, bvec->bv_offset)) { in read_from_bdev_async()
610 struct bio_vec bvec; in writeback_store() local
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| /kernel/linux/linux-5.10/block/ |
| D | blk-map.c | 48 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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| D | bio.c | 795 struct bio_vec *bvec; in bio_add_hw_page() local
811 bvec = &bio->bi_io_vec[bio->bi_vcnt - 1]; in bio_add_hw_page()
812 if (bvec_gap_to_prev(q, bvec, offset)) in bio_add_hw_page()
822 bvec = &bio->bi_io_vec[bio->bi_vcnt]; in bio_add_hw_page()
823 bvec->bv_page = page; in bio_add_hw_page()
824 bvec->bv_len = len; in bio_add_hw_page()
825 bvec->bv_offset = offset; in bio_add_hw_page()
951 struct bio_vec *bvec; in bio_release_pages() local
956 bio_for_each_segment_all(bvec, bio, iter_all) { in bio_release_pages()
957 if (mark_dirty && !PageCompound(bvec->bv_page)) in bio_release_pages()
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| D | blk-merge.c | 418 struct bio_vec *bvec, struct scatterlist *sglist, in blk_bvec_map_sg() argument
421 unsigned nbytes = bvec->bv_len; in blk_bvec_map_sg()
425 unsigned offset = bvec->bv_offset + total; in blk_bvec_map_sg()
426 unsigned len = min(get_max_segment_size(q, bvec->bv_page, in blk_bvec_map_sg()
428 struct page *page = bvec->bv_page; in blk_bvec_map_sg()
462 __blk_segment_map_sg_merge(struct request_queue *q, struct bio_vec *bvec, in __blk_segment_map_sg_merge() argument
466 int nbytes = bvec->bv_len; in __blk_segment_map_sg_merge()
474 if (!biovec_phys_mergeable(q, bvprv, bvec)) in __blk_segment_map_sg_merge()
486 struct bio_vec bvec, bvprv = { NULL }; in __blk_bios_map_sg() local
492 bio_for_each_bvec(bvec, bio, iter) { in __blk_bios_map_sg()
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| D | bounce.c | 165 struct bio_vec *bvec, orig_vec; in bounce_end_io() local
172 bio_for_each_segment_all(bvec, bio, iter_all) { in bounce_end_io()
174 if (bvec->bv_page != orig_vec.bv_page) { in bounce_end_io()
175 dec_zone_page_state(bvec->bv_page, NR_BOUNCE); in bounce_end_io()
176 mempool_free(bvec->bv_page, pool); in bounce_end_io()
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| /kernel/linux/linux-5.10/drivers/target/ |
| D | target_core_file.c | 271 struct bio_vec *bvec; in fd_execute_rw_aio() local
279 bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL); in fd_execute_rw_aio()
280 if (!bvec) { in fd_execute_rw_aio()
286 bvec[i].bv_page = sg_page(sg); in fd_execute_rw_aio()
287 bvec[i].bv_len = sg->length; in fd_execute_rw_aio()
288 bvec[i].bv_offset = sg->offset; in fd_execute_rw_aio()
293 iov_iter_bvec(&iter, is_write, bvec, sgl_nents, len); in fd_execute_rw_aio()
310 kfree(bvec); in fd_execute_rw_aio()
324 struct bio_vec *bvec; in fd_do_rw() local
329 bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL); in fd_do_rw()
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| /kernel/linux/linux-5.10/drivers/nvme/target/ |
| D | io-cmd-file.c | 120 iov_iter_bvec(&iter, rw, req->f.bvec, nr_segs, count); in nvmet_file_submit_bvec()
134 if (req->f.bvec != req->inline_bvec) { in nvmet_file_io_done()
136 kfree(req->f.bvec); in nvmet_file_io_done()
138 mempool_free(req->f.bvec, req->ns->bvec_pool); in nvmet_file_io_done()
168 nvmet_file_init_bvec(&req->f.bvec[bv_cnt], sg); in nvmet_file_execute_io()
169 len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io()
170 total_len += req->f.bvec[bv_cnt].bv_len; in nvmet_file_execute_io()
256 req->f.bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec), in nvmet_file_execute_rw()
259 req->f.bvec = req->inline_bvec; in nvmet_file_execute_rw()
261 if (unlikely(!req->f.bvec)) { in nvmet_file_execute_rw()
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| /kernel/linux/linux-5.10/fs/9p/ |
| D | vfs_addr.c | 42 struct bio_vec bvec = {.bv_page = page, .bv_len = PAGE_SIZE}; in v9fs_fid_readpage() local
54 iov_iter_bvec(&to, READ, &bvec, 1, PAGE_SIZE); in v9fs_fid_readpage()
154 struct bio_vec bvec; in v9fs_vfs_writepage_locked() local
162 bvec.bv_page = page; in v9fs_vfs_writepage_locked()
163 bvec.bv_offset = 0; in v9fs_vfs_writepage_locked()
164 bvec.bv_len = len; in v9fs_vfs_writepage_locked()
165 iov_iter_bvec(&from, WRITE, &bvec, 1, len); in v9fs_vfs_writepage_locked()
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| /kernel/linux/linux-5.10/drivers/block/ |
| D | loop.c | 267 static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos) in lo_write_bvec() argument
272 iov_iter_bvec(&i, WRITE, bvec, 1, bvec->bv_len); in lo_write_bvec()
278 if (likely(bw == bvec->bv_len)) in lo_write_bvec()
283 (unsigned long long)*ppos, bvec->bv_len); in lo_write_bvec()
292 struct bio_vec bvec; in lo_write_simple() local
296 rq_for_each_segment(bvec, rq, iter) { in lo_write_simple()
297 ret = lo_write_bvec(lo->lo_backing_file, &bvec, &pos); in lo_write_simple()
314 struct bio_vec bvec, b; in lo_write_transfer() local
323 rq_for_each_segment(bvec, rq, iter) { in lo_write_transfer()
324 ret = lo_do_transfer(lo, WRITE, page, 0, bvec.bv_page, in lo_write_transfer()
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| D | brd.c | 288 struct bio_vec bvec; in brd_submit_bio() local
296 bio_for_each_segment(bvec, bio, iter) { in brd_submit_bio()
297 unsigned int len = bvec.bv_len; in brd_submit_bio()
301 WARN_ON_ONCE((bvec.bv_offset & (SECTOR_SIZE - 1)) || in brd_submit_bio()
304 err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset, in brd_submit_bio()
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| /kernel/linux/linux-5.10/arch/m68k/emu/ |
| D | nfblock.c | 65 struct bio_vec bvec; in nfhd_submit_bio() local
72 bio_for_each_segment(bvec, bio, iter) { in nfhd_submit_bio()
73 len = bvec.bv_len; in nfhd_submit_bio()
76 page_to_phys(bvec.bv_page) + bvec.bv_offset); in nfhd_submit_bio()
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| /kernel/linux/linux-5.10/drivers/s390/block/ |
| D | xpram.c | 188 struct bio_vec bvec; in xpram_submit_bio() local
206 bio_for_each_segment(bvec, bio, iter) { in xpram_submit_bio()
208 kmap(bvec.bv_page) + bvec.bv_offset; in xpram_submit_bio()
209 bytes = bvec.bv_len; in xpram_submit_bio()
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| /kernel/linux/linux-5.10/Documentation/block/ |
| D | biovecs.rst | 20 bytes completed in the current bvec.
50 exactly one bvec at a time - for example, bio_copy_data() in block/bio.c,
58 coding bvec iterators before, and having common implementation considerably
63 it somewhere else if there was an error) had to save the entire bvec array
66 * Biovecs can be shared between multiple bios - a bvec iter can represent an
74 bios with more than a single bvec! Now, we can efficiently split arbitrary
86 fine to _most_ devices, but since accessing the raw bvec array was the
88 since all drivers _must_ go through the bvec iterator - and have been
143 * The following helpers iterate over multi-page bvec. The passed 'struct
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| /kernel/linux/linux-5.10/net/sunrpc/ |
| D | svcsock.c | 228 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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| /kernel/linux/linux-5.10/drivers/nvdimm/ |
| D | blk.c | 171 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()
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| D | pmem.c | 198 struct bio_vec bvec; in pmem_submit_bio() local
209 bio_for_each_segment(bvec, bio, iter) { in pmem_submit_bio()
211 rc = pmem_do_write(pmem, bvec.bv_page, bvec.bv_offset, in pmem_submit_bio()
212 iter.bi_sector, bvec.bv_len); in pmem_submit_bio()
214 rc = pmem_do_read(pmem, bvec.bv_page, bvec.bv_offset, in pmem_submit_bio()
215 iter.bi_sector, bvec.bv_len); in pmem_submit_bio()
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| /kernel/linux/linux-5.10/arch/xtensa/platforms/iss/ |
| D | simdisk.c | 107 struct bio_vec bvec; in simdisk_submit_bio() local
111 bio_for_each_segment(bvec, bio, iter) { in simdisk_submit_bio()
112 char *buffer = kmap_atomic(bvec.bv_page) + bvec.bv_offset; in simdisk_submit_bio()
113 unsigned len = bvec.bv_len >> SECTOR_SHIFT; in simdisk_submit_bio()
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