192 	struct uio auio;  in sys_read()  local
200 	auio.uio_iov = &aiov;  in sys_read()
201 	auio.uio_iovcnt = 1;  in sys_read()
202 	auio.uio_resid = uap->nbyte;  in sys_read()
203 	auio.uio_segflg = UIO_USERSPACE;  in sys_read()
204 	error = kern_readv(td, uap->fd, &auio);  in sys_read()
230 	struct uio auio;  in kern_pread()  local
238 	auio.uio_iov = &aiov;  in kern_pread()
239 	auio.uio_iovcnt = 1;  in kern_pread()
240 	auio.uio_resid = nbyte;  in kern_pread()
241 	auio.uio_segflg = UIO_USERSPACE;  in kern_pread()
242 	error = kern_preadv(td, fd, &auio, offset);  in kern_pread()
268 	struct uio *auio;  in sys_readv()  local
271 	error = copyinuio(uap->iovp, uap->iovcnt, &auio);  in sys_readv()
274 	error = kern_readv(td, uap->fd, auio);  in sys_readv()
275 	freeuio(auio);  in sys_readv()
280 kern_readv(struct thread *td, int fd, struct uio *auio)  in kern_readv()  argument
288 	error = dofileread(td, fd, fp, auio, (off_t)-1, 0);  in kern_readv()
307 	struct uio *auio;  in sys_preadv()  local
310 	error = copyinuio(uap->iovp, uap->iovcnt, &auio);  in sys_preadv()
313 	error = kern_preadv(td, uap->fd, auio, uap->offset);  in sys_preadv()
314 	freeuio(auio);  in sys_preadv()
319 kern_preadv(struct thread *td, int fd, struct uio *auio, off_t offset)  in kern_preadv()  argument
333 		error = dofileread(td, fd, fp, auio, offset, FOF_OFFSET);  in kern_preadv()
343 dofileread(struct thread *td, int fd, struct file *fp, struct uio *auio,  in dofileread()  argument
355 	if (auio->uio_resid == 0) {  in dofileread()
359 	auio->uio_rw = UIO_READ;  in dofileread()
360 	auio->uio_offset = offset;  in dofileread()
361 	auio->uio_td = td;  in dofileread()
364 		ktruio = cloneuio(auio);  in dofileread()
366 	cnt = auio->uio_resid;  in dofileread()
367 	if ((error = fo_read(fp, auio, td->td_ucred, flags, td))) {  in dofileread()
368 		if (auio->uio_resid != cnt && (error == ERESTART ||  in dofileread()
372 	cnt -= auio->uio_resid;  in dofileread()
393 	struct uio auio;  in sys_write()  local
401 	auio.uio_iov = &aiov;  in sys_write()
402 	auio.uio_iovcnt = 1;  in sys_write()
403 	auio.uio_resid = uap->nbyte;  in sys_write()
404 	auio.uio_segflg = UIO_USERSPACE;  in sys_write()
405 	error = kern_writev(td, uap->fd, &auio);  in sys_write()
432 	struct uio auio;  in kern_pwrite()  local
440 	auio.uio_iov = &aiov;  in kern_pwrite()
441 	auio.uio_iovcnt = 1;  in kern_pwrite()
442 	auio.uio_resid = nbyte;  in kern_pwrite()
443 	auio.uio_segflg = UIO_USERSPACE;  in kern_pwrite()
444 	error = kern_pwritev(td, fd, &auio, offset);  in kern_pwrite()
470 	struct uio *auio;  in sys_writev()  local
473 	error = copyinuio(uap->iovp, uap->iovcnt, &auio);  in sys_writev()
476 	error = kern_writev(td, uap->fd, auio);  in sys_writev()
477 	freeuio(auio);  in sys_writev()
482 kern_writev(struct thread *td, int fd, struct uio *auio)  in kern_writev()  argument
490 	error = dofilewrite(td, fd, fp, auio, (off_t)-1, 0);  in kern_writev()
509 	struct uio *auio;  in sys_pwritev()  local
512 	error = copyinuio(uap->iovp, uap->iovcnt, &auio);  in sys_pwritev()
515 	error = kern_pwritev(td, uap->fd, auio, uap->offset);  in sys_pwritev()
516 	freeuio(auio);  in sys_pwritev()
521 kern_pwritev(struct thread *td, int fd, struct uio *auio, off_t offset)  in kern_pwritev()  argument
535 		error = dofilewrite(td, fd, fp, auio, offset, FOF_OFFSET);  in kern_pwritev()
545 dofilewrite(struct thread *td, int fd, struct file *fp, struct uio *auio,  in dofilewrite()  argument
555 	auio->uio_rw = UIO_WRITE;  in dofilewrite()
556 	auio->uio_td = td;  in dofilewrite()
557 	auio->uio_offset = offset;  in dofilewrite()
560 		ktruio = cloneuio(auio);  in dofilewrite()
562 	cnt = auio->uio_resid;  in dofilewrite()
563 	error = fo_write(fp, auio, td->td_ucred, flags, td);  in dofilewrite()
569 		if (auio->uio_resid != cnt && (error == ERESTART ||  in dofilewrite()
578 	cnt -= auio->uio_resid;  in dofilewrite()