segvn_sparse_t
#define SEGVN_MAX_SPARSE ((128 * 1024) / sizeof (segvn_sparse_t))
segvn_sparse_t *svw_sparse;
segvn_sparse_t *const cur =
const segvn_sparse_t *const l = lp;
const segvn_sparse_t *const r = rp;
segvn_sparse_t *const svs =