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Searched refs:nr_segs (Results 1 – 25 of 26) sorted by relevance

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/Linux-v4.19/include/linux/
Duio.h42 unsigned long nr_segs; member
57 static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs) in iov_length() argument
62 for (seg = 0; seg < nr_segs; seg++) in iov_length()
185 unsigned long nr_segs, size_t count);
187 unsigned long nr_segs, size_t count);
189 unsigned long nr_segs, size_t count);
249 unsigned nr_segs, unsigned fast_segs,
255 unsigned nr_segs, unsigned fast_segs,
Dcompat.h516 unsigned long nr_segs,
660 unsigned int nr_segs, unsigned int flags);
Dsyscalls.h480 unsigned long nr_segs, unsigned int flags);
Dfs.h1817 unsigned long nr_segs, unsigned long fast_segs,
/Linux-v4.19/lib/
Diov_iter.c105 i->nr_segs -= i->bvec - bvec; \
115 i->nr_segs -= kvec - i->kvec; \
125 i->nr_segs -= iov - i->iov; \
229 i->nr_segs -= iov - i->iov; in copy_page_to_iter_iovec()
313 i->nr_segs -= iov - i->iov; in copy_page_from_iter_iovec()
432 const struct iovec *iov, unsigned long nr_segs, in iov_iter_init() argument
444 i->nr_segs = nr_segs; in iov_iter_init()
1023 i->nr_segs++; in iov_iter_revert()
1035 i->nr_segs++; in iov_iter_revert()
1054 if (i->nr_segs == 1) in iov_iter_single_seg_count()
[all …]
/Linux-v4.19/drivers/scsi/
Dxen-scsifront.c1059 unsigned int sg_grant, nr_segs; in scsifront_read_backend_params() local
1063 nr_segs = min_t(unsigned int, sg_grant, SG_ALL); in scsifront_read_backend_params()
1064 nr_segs = max_t(unsigned int, nr_segs, VSCSIIF_SG_TABLESIZE); in scsifront_read_backend_params()
1065 nr_segs = min_t(unsigned int, nr_segs, in scsifront_read_backend_params()
1070 dev_info(&dev->dev, "using up to %d SG entries\n", nr_segs); in scsifront_read_backend_params()
1071 else if (info->pause && nr_segs < host->sg_tablesize) in scsifront_read_backend_params()
1074 host->sg_tablesize, nr_segs); in scsifront_read_backend_params()
1076 host->sg_tablesize = nr_segs; in scsifront_read_backend_params()
1077 host->max_sectors = (nr_segs - 1) * PAGE_SIZE / 512; in scsifront_read_backend_params()
/Linux-v4.19/fs/
Dread_write.c754 unsigned long nr_segs, unsigned long fast_segs, in rw_copy_check_uvector() argument
767 if (nr_segs == 0) { in rw_copy_check_uvector()
776 if (nr_segs > UIO_MAXIOV) { in rw_copy_check_uvector()
780 if (nr_segs > fast_segs) { in rw_copy_check_uvector()
781 iov = kmalloc_array(nr_segs, sizeof(struct iovec), GFP_KERNEL); in rw_copy_check_uvector()
787 if (copy_from_user(iov, uvector, nr_segs*sizeof(*uvector))) { in rw_copy_check_uvector()
802 for (seg = 0; seg < nr_segs; seg++) { in rw_copy_check_uvector()
830 const struct compat_iovec __user *uvector, unsigned long nr_segs, in compat_rw_copy_check_uvector() argument
844 if (nr_segs == 0) in compat_rw_copy_check_uvector()
848 if (nr_segs > UIO_MAXIOV) in compat_rw_copy_check_uvector()
[all …]
Dsplice.c1344 unsigned long, nr_segs, unsigned int, flags) in SYSCALL_DEFINE4() argument
1358 error = import_iovec(type, uiov, nr_segs, in SYSCALL_DEFINE4()
1370 unsigned int, nr_segs, unsigned int, flags) in COMPAT_SYSCALL_DEFINE4() argument
1384 error = compat_import_iovec(type, iov32, nr_segs, in COMPAT_SYSCALL_DEFINE4()
/Linux-v4.19/fs/fuse/
Ddev.c700 unsigned long nr_segs; member
756 BUG_ON(!cs->nr_segs); in fuse_copy_fill()
762 cs->nr_segs--; in fuse_copy_fill()
764 if (cs->nr_segs == cs->pipe->buffers) in fuse_copy_fill()
780 cs->nr_segs++; in fuse_copy_fill()
855 BUG_ON(!cs->nr_segs); in fuse_try_move_page()
859 cs->nr_segs--; in fuse_try_move_page()
940 if (cs->nr_segs == cs->pipe->buffers) in fuse_ref_page()
956 cs->nr_segs++; in fuse_ref_page()
1388 if (pipe->nrbufs + cs.nr_segs > pipe->buffers) { in fuse_dev_splice_read()
[all …]
/Linux-v4.19/arch/powerpc/mm/
Ddma-noncoherent.c361 int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE; in __dma_sync_page_highmem() local
380 } while (seg_nr < nr_segs); in __dma_sync_page_highmem()
/Linux-v4.19/drivers/nvme/target/
Dio-cmd-file.c86 unsigned long nr_segs, size_t count) in nvmet_file_submit_bvec() argument
104 iov_iter_bvec(&iter, ITER_BVEC | rw, req->f.bvec, nr_segs, count); in nvmet_file_submit_bvec()
/Linux-v4.19/drivers/block/xen-blkback/
Dblkback.c759 invcount = xen_blkbk_unmap_prepare(ring, pages, req->nr_segs, in xen_blkbk_unmap_and_respond()
947 pending_req->nr_segs, in xen_blkbk_map_seg()
963 nseg = pending_req->nr_segs; in xen_blkbk_parse_indirect()
1293 pending_req->nr_segs = nseg; in dispatch_rw_block_io()
1416 pending_req->nr_segs); in dispatch_rw_block_io()
Dcommon.h345 int nr_segs; member
/Linux-v4.19/mm/
Dswap.c150 int get_kernel_pages(const struct kvec *kiov, int nr_segs, int write, in get_kernel_pages() argument
155 for (seg = 0; seg < nr_segs; seg++) { in get_kernel_pages()
/Linux-v4.19/sound/core/
Dpcm_native.c3070 if (to->nr_segs > 1024 || to->nr_segs != runtime->channels) in snd_pcm_readv()
3075 bufs = kmalloc_array(to->nr_segs, sizeof(void *), GFP_KERNEL); in snd_pcm_readv()
3078 for (i = 0; i < to->nr_segs; ++i) in snd_pcm_readv()
3106 if (from->nr_segs > 128 || from->nr_segs != runtime->channels || in snd_pcm_writev()
3110 bufs = kmalloc_array(from->nr_segs, sizeof(void *), GFP_KERNEL); in snd_pcm_writev()
3113 for (i = 0; i < from->nr_segs; ++i) in snd_pcm_writev()
/Linux-v4.19/block/
Dbio.c1051 if (data->nr_segs > UIO_MAXIOV) in bio_alloc_map_data()
1055 sizeof(struct iovec) * data->nr_segs, gfp_mask); in bio_alloc_map_data()
1058 memcpy(bmd->iov, data->iov, sizeof(struct iovec) * data->nr_segs); in bio_alloc_map_data()
/Linux-v4.19/fs/cifs/
Dsmb1ops.c756 struct kvec *iov, unsigned long nr_segs) in cifs_sync_write() argument
760 return CIFSSMBWrite2(xid, parms, written, iov, nr_segs); in cifs_sync_write()
Dsmb2ops.c1228 struct kvec *iov, unsigned long nr_segs) in smb2_sync_write() argument
1233 return SMB2_write(xid, parms, written, iov, nr_segs); in smb2_sync_write()
/Linux-v4.19/include/trace/events/
Dafs.h378 __entry->nr = msg->msg_iter.nr_segs;
/Linux-v4.19/fs/afs/
Drxrpc.c323 nr = msg->msg_iter.nr_segs; in afs_send_pages()
/Linux-v4.19/net/ipv4/
Dtcp_input.c333 u32 nr_segs; in tcp_sndbuf_expand() local
345 nr_segs = max_t(u32, TCP_INIT_CWND, tp->snd_cwnd); in tcp_sndbuf_expand()
346 nr_segs = max_t(u32, nr_segs, tp->reordering + 1); in tcp_sndbuf_expand()
353 sndmem *= nr_segs * per_mss; in tcp_sndbuf_expand()
/Linux-v4.19/drivers/infiniband/hw/qib/
Dqib_file_ops.c2250 if (!iter_is_iovec(from) || !from->nr_segs || !pq) in qib_write_iter()
2253 return qib_user_sdma_writev(rcd, pq, from->iov, from->nr_segs); in qib_write_iter()
/Linux-v4.19/fs/ocfs2/
Dfile.c2264 (unsigned int)from->nr_segs); /* GRRRRR */ in ocfs2_file_write_iter()
2412 to->nr_segs); /* GRRRRR */ in ocfs2_file_read_iter()
/Linux-v4.19/drivers/infiniband/hw/hfi1/
Dfile_ops.c307 unsigned long dim = from->nr_segs; in hfi1_write_iter()
/Linux-v4.19/drivers/net/
Dtun.c1448 if (it->nr_segs > MAX_SKB_FRAGS + 1) in tun_napi_alloc_frags()
1466 for (i = 1; i < it->nr_segs; i++) { in tun_napi_alloc_frags()

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