preadv
if ((n = preadv(bc->bc_fd, br->br_iov, br->br_iovcnt,
ssize_t preadv(int, const struct iovec *, int, off_t);
ret = preadv(file->ff_fd, req->lr_data_iov, niov,
if ((read = preadv(fd, iov, 1, off)) != DATA_LEN)
ssize_t read = preadv(fd, iov, IOV_MAX, 0);
ssize_t preadv(int, struct iovec *, int, off_t, off_t);
/* 123 */ SYSENT_CL("preadv", preadv, 5),
/* 123 */ SYSENT_CI("preadv", preadv, 5),
#define preadv64 preadv
extern ssize_t preadv(int, const struct iovec *, int, off_t);