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/Linux-v5.4/block/
Dbio.c1093 struct bio_map_data *bmd; in bio_alloc_map_data() local
1097 bmd = kmalloc(struct_size(bmd, iov, data->nr_segs), gfp_mask); in bio_alloc_map_data()
1098 if (!bmd) in bio_alloc_map_data()
1100 memcpy(bmd->iov, data->iov, sizeof(struct iovec) * data->nr_segs); in bio_alloc_map_data()
1101 bmd->iter = *data; in bio_alloc_map_data()
1102 bmd->iter.iov = bmd->iov; in bio_alloc_map_data()
1103 return bmd; in bio_alloc_map_data()
1187 struct bio_map_data *bmd = bio->bi_private; in bio_uncopy_user() local
1199 ret = bio_copy_to_iter(bio, bmd->iter); in bio_uncopy_user()
1200 if (bmd->is_our_pages) in bio_uncopy_user()
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