/linux/lib/ |
H A D | iov_iter.c | 163 const struct iovec *iov, unsigned long nr_segs, in iov_iter_init() argument 172 .nr_segs = nr_segs, in iov_iter_init() 503 for (bvec = i->bvec, end = bvec + i->nr_segs; bvec < end; bvec++) { in iov_iter_bvec_advance() 509 i->nr_segs -= bvec - i->bvec; in iov_iter_bvec_advance() 522 for (iov = iter_iov(i), end = iov + i->nr_segs; iov < end; iov++) { in iov_iter_iovec_advance() 528 i->nr_segs -= iov - iter_iov(i); in iov_iter_iovec_advance() 634 i->nr_segs++; in iov_iter_revert() 649 i->nr_segs++; in iov_iter_revert() 666 if (i->nr_segs > 1) { in iov_iter_single_seg_count() 680 const struct kvec *kvec, unsigned long nr_segs, in iov_iter_kvec() argument [all …]
|
H A D | kunit_iov_iter.c | 127 KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); in iov_kunit_copy_to_kvec() 177 KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); in iov_kunit_copy_from_kvec() 286 KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); in iov_kunit_copy_to_bvec() 340 KUNIT_EXPECT_EQ(test, iter.nr_segs, 0); in iov_kunit_copy_from_bvec()
|
/linux/net/core/ |
H A D | net_test.c | 51 unsigned int nr_segs; member 60 .nr_segs = 1, 67 .nr_segs = 3, 76 .nr_segs = 3, 84 .nr_segs = 3, 93 .nr_segs = 2, 103 .nr_segs = 3, 111 .nr_segs = 2, 121 .nr_segs = 4, 135 .nr_segs = 4, [all …]
|
/linux/block/ |
H A D | blk-merge.c | 378 unsigned *nr_segs) in bio_split_rw() argument 381 bio_split_rw_at(bio, lim, nr_segs, in bio_split_rw() 393 const struct queue_limits *lim, unsigned *nr_segs) in bio_split_zone_append() argument 397 split_sectors = bio_split_rw_at(bio, lim, nr_segs, in bio_split_zone_append() 437 unsigned int nr_segs; in bio_split_to_limits() local 439 return __bio_split_to_limits(bio, bdev_limits(bio->bi_bdev), &nr_segs); in bio_split_to_limits() 640 int ll_back_merge_fn(struct request *req, struct bio *bio, unsigned int nr_segs) in ll_back_merge_fn() argument 655 return ll_new_hw_segment(req, bio, nr_segs); in ll_back_merge_fn() 659 unsigned int nr_segs) in ll_front_merge_fn() argument 674 return ll_new_hw_segment(req, bio, nr_segs); in ll_front_merge_fn() [all …]
|
H A D | blk.h | 303 struct bio *bio, unsigned int nr_segs); 305 unsigned int nr_segs); 307 struct bio *bio, unsigned int nr_segs); 347 unsigned *nr_segs); 349 const struct queue_limits *lim, unsigned *nr_segs); 384 const struct queue_limits *lim, unsigned int *nr_segs) in __bio_split_to_limits() argument 390 return bio_split_rw(bio, lim, nr_segs); in __bio_split_to_limits() 391 *nr_segs = 1; in __bio_split_to_limits() 394 return bio_split_zone_append(bio, lim, nr_segs); in __bio_split_to_limits() 397 return bio_split_discard(bio, lim, nr_segs); in __bio_split_to_limits() [all …]
|
H A D | blk-map.c | 26 if (data->nr_segs > UIO_MAXIOV) in bio_alloc_map_data() 29 bmd = kmalloc(struct_size(bmd, iov, data->nr_segs), gfp_mask); in bio_alloc_map_data() 34 memcpy(bmd->iov, iter_iov(data), sizeof(struct iovec) * data->nr_segs); in bio_alloc_map_data() 481 unsigned int nr_segs = 0; in blk_rq_append_bio() local 485 ret = bio_split_rw_at(bio, lim, &nr_segs, max_bytes); in blk_rq_append_bio() 494 if (!ll_back_merge_fn(rq, bio, nr_segs)) in blk_rq_append_bio() 503 rq->nr_phys_segments = nr_segs; in blk_rq_append_bio()
|
H A D | blk-mq-sched.h | 11 unsigned int nr_segs, struct request **merged_request); 13 unsigned int nr_segs);
|
H A D | blk-zoned.c | 776 struct bio *bio, unsigned int nr_segs) in disk_zone_wplug_add_bio() argument 809 bio->__bi_nr_segments = nr_segs; in disk_zone_wplug_add_bio() 983 static bool blk_zone_wplug_handle_write(struct bio *bio, unsigned int nr_segs) in blk_zone_wplug_handle_write() argument 1052 disk_zone_wplug_add_bio(disk, zwplug, bio, nr_segs); in blk_zone_wplug_handle_write() 1112 bool blk_zone_plug_bio(struct bio *bio, unsigned int nr_segs) in blk_zone_plug_bio() argument 1163 return blk_zone_wplug_handle_write(bio, nr_segs); in blk_zone_plug_bio()
|
H A D | blk-mq.c | 2654 unsigned int nr_segs) in blk_mq_bio_to_request() argument 2664 rq->nr_phys_segments = nr_segs; in blk_mq_bio_to_request() 2955 struct bio *bio, unsigned int nr_segs) in blk_mq_attempt_bio_merge() argument 2958 if (blk_attempt_plug_merge(q, bio, nr_segs)) in blk_mq_attempt_bio_merge() 2960 if (blk_mq_sched_bio_merge(q, bio, nr_segs)) in blk_mq_attempt_bio_merge() 3062 unsigned int nr_segs; in blk_mq_submit_bio() local 3078 nr_segs = bio->__bi_nr_segments; in blk_mq_submit_bio() 3111 bio = __bio_split_to_limits(bio, &q->limits, &nr_segs); in blk_mq_submit_bio() 3118 if (blk_mq_attempt_bio_merge(q, bio, nr_segs)) in blk_mq_submit_bio() 3121 if (blk_queue_is_zoned(q) && blk_zone_plug_bio(bio, nr_segs)) in blk_mq_submit_bio() [all …]
|
/linux/fs/smb/server/ |
H A D | transport_tcp.c | 117 unsigned int nr_segs, size_t bytes) in kvec_array_init() argument 128 nr_segs--; in kvec_array_init() 133 memcpy(new, iov, sizeof(*iov) * nr_segs); in kvec_array_init() 136 return nr_segs; in kvec_array_init() 146 static struct kvec *get_conn_iovec(struct tcp_transport *t, unsigned int nr_segs) in get_conn_iovec() argument 150 if (t->iov && nr_segs <= t->nr_iov) in get_conn_iovec() 154 new_iov = kmalloc_array(nr_segs, sizeof(*new_iov), KSMBD_DEFAULT_GFP); in get_conn_iovec() 158 t->nr_iov = nr_segs; in get_conn_iovec() 305 unsigned int nr_segs, unsigned int to_read, in ksmbd_tcp_readv() argument 315 iov = get_conn_iovec(t, nr_segs); in ksmbd_tcp_readv() [all …]
|
/linux/drivers/scsi/ |
H A D | xen-scsifront.c | 1133 unsigned int sg_grant, nr_segs; in scsifront_read_backend_params() local 1137 nr_segs = min_t(unsigned int, sg_grant, SG_ALL); in scsifront_read_backend_params() 1138 nr_segs = max_t(unsigned int, nr_segs, VSCSIIF_SG_TABLESIZE); in scsifront_read_backend_params() 1139 nr_segs = min_t(unsigned int, nr_segs, in scsifront_read_backend_params() 1144 dev_info(&dev->dev, "using up to %d SG entries\n", nr_segs); in scsifront_read_backend_params() 1145 else if (info->pause && nr_segs < host->sg_tablesize) in scsifront_read_backend_params() 1148 host->sg_tablesize, nr_segs); in scsifront_read_backend_params() 1150 host->sg_tablesize = nr_segs; in scsifront_read_backend_params() 1151 host->max_sectors = (nr_segs - 1) * PAGE_SIZE / 512; in scsifront_read_backend_params()
|
/linux/arch/powerpc/mm/ |
H A D | dma-noncoherent.c | 65 int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE; in __dma_sync_page_highmem() local 84 } while (seg_nr < nr_segs); in __dma_sync_page_highmem()
|
/linux/drivers/hwtracing/intel_th/ |
H A D | msu.c | 74 unsigned int nr_segs; member 339 for_each_sg(win->sgt->sgl, sg, win->nr_segs, blk) { in msc_win_total_sz() 434 for_each_sg(win->sgt->sgl, sg, win->nr_segs, blk) { in msc_win_oldest_sg() 671 for_each_sg(win->sgt->sgl, sg, win->nr_segs, blk) { in msc_buffer_clear_hw_header() 1003 unsigned int nr_segs) in __msc_buffer_win_alloc() argument 1009 ret = sg_alloc_table(win->sgt, nr_segs, GFP_KERNEL); in __msc_buffer_win_alloc() 1013 for_each_sg(win->sgt->sgl, sg_ptr, nr_segs, i) { in __msc_buffer_win_alloc() 1023 return nr_segs; in __msc_buffer_win_alloc() 1048 for_each_sg(win->sgt->sgl, sg_ptr, win->nr_segs, i) { in msc_buffer_set_uc() 1068 for_each_sg(win->sgt->sgl, sg_ptr, win->nr_segs, i) { in msc_buffer_set_wb() [all …]
|
/linux/drivers/md/bcache/ |
H A D | debug.c | 110 unsigned int nr_segs = bio_segments(bio); in bch_data_verify() local 115 check = bio_kmalloc(nr_segs, GFP_NOIO); in bch_data_verify() 118 bio_init(check, bio->bi_bdev, check->bi_inline_vecs, nr_segs, in bch_data_verify()
|
/linux/io_uring/ |
H A D | net.c | 176 kmsg->free_iov_nr = kmsg->msg.msg_iter.nr_segs; in io_net_vec_assign() 202 int ret, nr_segs; in io_compat_msg_copy_hdr() local 205 nr_segs = iomsg->free_iov_nr; in io_compat_msg_copy_hdr() 209 nr_segs = 1; in io_compat_msg_copy_hdr() 238 nr_segs, &iov, &iomsg->msg.msg_iter, true); in io_compat_msg_copy_hdr() 253 int ret, nr_segs; in io_msg_copy_hdr() local 256 nr_segs = iomsg->free_iov_nr; in io_msg_copy_hdr() 260 nr_segs = 1; in io_msg_copy_hdr() 298 ret = __import_iovec(ddir, msg->msg_iov, msg->msg_iovlen, nr_segs, in io_msg_copy_hdr() 315 iomsg->msg.msg_iter.nr_segs = 0; in io_sendmsg_copy_hdr() [all …]
|
H A D | rw.c | 100 int nr_segs, ret; in __io_import_iovec() local 119 nr_segs = io->free_iov_nr; in __io_import_iovec() 123 nr_segs = 1; in __io_import_iovec() 125 ret = __import_iovec(ddir, buf, sqe_len, nr_segs, &iov, &io->iter, in __io_import_iovec() 131 io->free_iov_nr = io->iter.nr_segs; in __io_import_iovec()
|
/linux/include/linux/ |
H A D | iov_iter.h | 64 iter->nr_segs -= p - iter->__iov; in iterate_iovec() 98 iter->nr_segs -= p - iter->kvec; in iterate_kvec() 137 iter->nr_segs -= p - iter->bvec; in iterate_bvec()
|
H A D | bio.h | 17 static inline unsigned int bio_max_segs(unsigned int nr_segs) in bio_max_segs() argument 19 return min(nr_segs, BIO_MAX_VECS); in bio_max_segs()
|
/linux/fs/fuse/ |
H A D | dev.c | 757 BUG_ON(!cs->nr_segs); in fuse_copy_fill() 763 cs->nr_segs--; in fuse_copy_fill() 765 if (cs->nr_segs >= cs->pipe->max_usage) in fuse_copy_fill() 781 cs->nr_segs++; in fuse_copy_fill() 865 BUG_ON(!cs->nr_segs); in fuse_try_move_page() 869 cs->nr_segs--; in fuse_try_move_page() 956 if (cs->nr_segs >= cs->pipe->max_usage) in fuse_ref_page() 974 cs->nr_segs++; in fuse_ref_page() 1460 if (pipe_buf_usage(pipe) + cs.nr_segs > pipe->max_usage) { in fuse_dev_splice_read() 1465 for (ret = total = 0; page_nr < cs.nr_segs; total += ret) { in fuse_dev_splice_read() [all …]
|
/linux/drivers/nvme/target/ |
H A D | io-cmd-file.c | 77 unsigned long nr_segs, size_t count, int ki_flags) in nvmet_file_submit_bvec() argument 94 iov_iter_bvec(&iter, rw, req->f.bvec, nr_segs, count); in nvmet_file_submit_bvec()
|
/linux/fs/bcachefs/ |
H A D | fs-io-direct.c | 322 if (dio->iter.nr_segs > ARRAY_SIZE(dio->inline_vecs)) { in bch2_dio_write_copy_iov() 323 dio->iov = iov = kmalloc_array(dio->iter.nr_segs, sizeof(*iov), in bch2_dio_write_copy_iov() 329 memcpy(iov, dio->iter.__iov, dio->iter.nr_segs * sizeof(*iov)); in bch2_dio_write_copy_iov()
|
/linux/drivers/block/xen-blkback/ |
H A D | blkback.c | 710 invcount = xen_blkbk_unmap_prepare(ring, pages, req->nr_segs, in xen_blkbk_unmap_and_respond() 907 pending_req->nr_segs, in xen_blkbk_map_seg() 923 nseg = pending_req->nr_segs; in xen_blkbk_parse_indirect() 1361 pending_req->nr_segs = nseg; in dispatch_rw_block_io() 1475 pending_req->nr_segs); in dispatch_rw_block_io()
|
H A D | common.h | 347 int nr_segs; member
|
/linux/fs/netfs/ |
H A D | iterator.c | 113 unsigned int nbv = iter->nr_segs, ix = 0, nsegs = 0; in netfs_limit_bvec()
|
/linux/drivers/usb/host/ |
H A D | xen-hcd.c | 719 int nr_segs = 0; in xenhcd_gnttab_done() local 728 nr_segs = shadow->req.nr_buffer_segs; in xenhcd_gnttab_done() 731 nr_segs += shadow->req.u.isoc.nr_frame_desc_segs; in xenhcd_gnttab_done() 733 for (i = 0; i < nr_segs; i++) { in xenhcd_gnttab_done()
|