vn_rdwr_inchunks
return (vn_rdwr_inchunks(UIO_WRITE, ctx->vp, __DECONST(void *, base),
error = vn_rdwr_inchunks(UIO_READ, vp, filebuf, count, offset,
int vn_rdwr_inchunks(enum uio_rw rw, struct vnode *vp, void *base,