xref: /illumos-gate/usr/src/uts/common/sys/uio.h (revision b4203d757c7c247e39c94c09a94021a3a8121062)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
517169044Sbrutus  * Common Development and Distribution License (the "License").
617169044Sbrutus  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
217c478bd9Sstevel@tonic-gate /*
22ba3594baSGarrett D'Amore  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
23ba3594baSGarrett D'Amore  *
24c242f9a0Schunli zhang - Sun Microsystems - Irvine United States  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
257c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
26b819cea2SGordon Ross  *
27b819cea2SGordon Ross  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
28fca543caSDJ Hoffman  * Copyright (c) 2015, Joyent, Inc.  All rights reserved.
297c478bd9Sstevel@tonic-gate  */
307c478bd9Sstevel@tonic-gate 
317c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
32*b4203d75SMarcel Telka /*	  All Rights Reserved	*/
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate /*
357c478bd9Sstevel@tonic-gate  * University Copyright- Copyright (c) 1982, 1986, 1988
367c478bd9Sstevel@tonic-gate  * The Regents of the University of California
377c478bd9Sstevel@tonic-gate  * All Rights Reserved
387c478bd9Sstevel@tonic-gate  *
397c478bd9Sstevel@tonic-gate  * University Acknowledgment- Portions of this document are derived from
407c478bd9Sstevel@tonic-gate  * software developed by the University of California, Berkeley, and its
417c478bd9Sstevel@tonic-gate  * contributors.
427c478bd9Sstevel@tonic-gate  */
437c478bd9Sstevel@tonic-gate 
447c478bd9Sstevel@tonic-gate #ifndef _SYS_UIO_H
457c478bd9Sstevel@tonic-gate #define	_SYS_UIO_H
467c478bd9Sstevel@tonic-gate 
477c478bd9Sstevel@tonic-gate #include <sys/feature_tests.h>
487c478bd9Sstevel@tonic-gate 
497c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
507c478bd9Sstevel@tonic-gate extern "C" {
517c478bd9Sstevel@tonic-gate #endif
527c478bd9Sstevel@tonic-gate 
537c478bd9Sstevel@tonic-gate #include <sys/types.h>
547c478bd9Sstevel@tonic-gate 
557c478bd9Sstevel@tonic-gate /*
567c478bd9Sstevel@tonic-gate  * I/O parameter information.  A uio structure describes the I/O which
577c478bd9Sstevel@tonic-gate  * is to be performed by an operation.  Typically the data movement will
587c478bd9Sstevel@tonic-gate  * be performed by a routine such as uiomove(), which updates the uio
597c478bd9Sstevel@tonic-gate  * structure to reflect what was done.
607c478bd9Sstevel@tonic-gate  */
617c478bd9Sstevel@tonic-gate 
627c478bd9Sstevel@tonic-gate #if	defined(_XPG4_2)
637c478bd9Sstevel@tonic-gate typedef struct iovec {
647c478bd9Sstevel@tonic-gate 	void	*iov_base;
657c478bd9Sstevel@tonic-gate 	size_t	iov_len;
667c478bd9Sstevel@tonic-gate } iovec_t;
677c478bd9Sstevel@tonic-gate #else
687c478bd9Sstevel@tonic-gate typedef struct iovec {
697c478bd9Sstevel@tonic-gate 	caddr_t	iov_base;
707c478bd9Sstevel@tonic-gate #if defined(_LP64)
717c478bd9Sstevel@tonic-gate 	size_t	iov_len;
727c478bd9Sstevel@tonic-gate #else
737c478bd9Sstevel@tonic-gate 	long	iov_len;
747c478bd9Sstevel@tonic-gate #endif
757c478bd9Sstevel@tonic-gate } iovec_t;
767c478bd9Sstevel@tonic-gate #endif	/* defined(_XPG4_2) */
777c478bd9Sstevel@tonic-gate 
787c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32)
797c478bd9Sstevel@tonic-gate 
807c478bd9Sstevel@tonic-gate /* Kernel's view of user ILP32 iovec struct */
817c478bd9Sstevel@tonic-gate 
827c478bd9Sstevel@tonic-gate typedef	struct iovec32 {
837c478bd9Sstevel@tonic-gate 	caddr32_t	iov_base;
847c478bd9Sstevel@tonic-gate 	int32_t		iov_len;
857c478bd9Sstevel@tonic-gate } iovec32_t;
867c478bd9Sstevel@tonic-gate 
877c478bd9Sstevel@tonic-gate #endif	/* _SYSCALL32 */
887c478bd9Sstevel@tonic-gate 
897c478bd9Sstevel@tonic-gate #if 	!defined(_XPG4_2) || defined(__EXTENSIONS__)
907c478bd9Sstevel@tonic-gate /*
917c478bd9Sstevel@tonic-gate  * Segment flag values.
927c478bd9Sstevel@tonic-gate  */
937c478bd9Sstevel@tonic-gate typedef enum uio_seg { UIO_USERSPACE, UIO_SYSSPACE, UIO_USERISPACE } uio_seg_t;
947c478bd9Sstevel@tonic-gate 
957c478bd9Sstevel@tonic-gate typedef struct uio {
967c478bd9Sstevel@tonic-gate 	iovec_t		*uio_iov;	/* pointer to array of iovecs */
977c478bd9Sstevel@tonic-gate 	int		uio_iovcnt;	/* number of iovecs */
987c478bd9Sstevel@tonic-gate 	lloff_t		_uio_offset;	/* file offset */
997c478bd9Sstevel@tonic-gate 	uio_seg_t	uio_segflg;	/* address space (kernel or user) */
1007c478bd9Sstevel@tonic-gate 	uint16_t	uio_fmode;	/* file mode flags */
1017c478bd9Sstevel@tonic-gate 	uint16_t	uio_extflg;	/* extended flags */
1027c478bd9Sstevel@tonic-gate 	lloff_t		_uio_limit;	/* u-limit (maximum byte offset) */
1037c478bd9Sstevel@tonic-gate 	ssize_t		uio_resid;	/* residual count */
1047c478bd9Sstevel@tonic-gate } uio_t;
1057c478bd9Sstevel@tonic-gate 
10617169044Sbrutus /*
10717169044Sbrutus  * Extended uio_t uioa_t used for asynchronous uio.
10817169044Sbrutus  *
10917169044Sbrutus  * Note: UIOA_IOV_MAX is defined and used as it is in "fs/vncalls.c"
11017169044Sbrutus  *	 as there isn't a formal definition of IOV_MAX for the kernel.
11117169044Sbrutus  */
11217169044Sbrutus #define	UIOA_IOV_MAX	16
11317169044Sbrutus 
11417169044Sbrutus typedef struct uioa_page_s {		/* locked uio_iov state */
11517169044Sbrutus 	int	uioa_pfncnt;		/* count of pfn_t(s) in *uioa_ppp */
11617169044Sbrutus 	void	**uioa_ppp;		/* page_t or pfn_t arrary */
11717169044Sbrutus 	caddr_t	uioa_base;		/* address base */
11817169044Sbrutus 	size_t	uioa_len;		/* span length */
11917169044Sbrutus } uioa_page_t;
12017169044Sbrutus 
12117169044Sbrutus typedef struct uioa_s {
12217169044Sbrutus 	iovec_t		*uio_iov;	/* pointer to array of iovecs */
12317169044Sbrutus 	int		uio_iovcnt;	/* number of iovecs */
12417169044Sbrutus 	lloff_t		_uio_offset;	/* file offset */
12517169044Sbrutus 	uio_seg_t	uio_segflg;	/* address space (kernel or user) */
12617169044Sbrutus 	uint16_t	uio_fmode;	/* file mode flags */
12717169044Sbrutus 	uint16_t	uio_extflg;	/* extended flags */
12817169044Sbrutus 	lloff_t		_uio_limit;	/* u-limit (maximum byte offset) */
12917169044Sbrutus 	ssize_t		uio_resid;	/* residual count */
13017169044Sbrutus 	/*
13117169044Sbrutus 	 * uioa extended members.
13217169044Sbrutus 	 */
13317169044Sbrutus 	uint32_t	uioa_state;	/* state of asynch i/o */
13496e0e3daSYu Xiangning 	ssize_t		uioa_mbytes;	/* bytes that have been uioamove()ed */
13517169044Sbrutus 	uioa_page_t	*uioa_lcur;	/* pointer into uioa_locked[] */
13617169044Sbrutus 	void		**uioa_lppp;	/* pointer into lcur->uioa_ppp[] */
13717169044Sbrutus 	void		*uioa_hwst[4];	/* opaque hardware state */
13817169044Sbrutus 	uioa_page_t	uioa_locked[UIOA_IOV_MAX]; /* Per iov locked pages */
13917169044Sbrutus } uioa_t;
14017169044Sbrutus 
141c242f9a0Schunli zhang - Sun Microsystems - Irvine United States /*
142c242f9a0Schunli zhang - Sun Microsystems - Irvine United States  * uio extensions
143c242f9a0Schunli zhang - Sun Microsystems - Irvine United States  *
144c242f9a0Schunli zhang - Sun Microsystems - Irvine United States  * PSARC 2009/478: Copy Reduction Interfaces
145c242f9a0Schunli zhang - Sun Microsystems - Irvine United States  */
146c242f9a0Schunli zhang - Sun Microsystems - Irvine United States typedef enum xuio_type {
147c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	UIOTYPE_ASYNCIO,
148c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	UIOTYPE_ZEROCOPY
149c242f9a0Schunli zhang - Sun Microsystems - Irvine United States } xuio_type_t;
150c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 
151c242f9a0Schunli zhang - Sun Microsystems - Irvine United States typedef struct xuio {
152c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	uio_t xu_uio;		/* Embedded UIO structure */
153c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 
154c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	/* Extended uio fields */
155c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	enum xuio_type xu_type;	/* What kind of uio structure? */
156c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	union {
157c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		/* Async I/O Support, intend to replace uioa_t. */
158c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		struct {
159c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			uint32_t xu_a_state;	/* state of async i/o */
160c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			/* bytes that have been uioamove()ed */
161c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			ssize_t xu_a_mbytes;
162c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			uioa_page_t *xu_a_lcur;	/* pointer into uioa_locked[] */
163c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			/* pointer into lcur->uioa_ppp[] */
164c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			void **xu_a_lppp;
165c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			void *xu_a_hwst[4];	/* opaque hardware state */
166c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			/* Per iov locked pages */
167c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			uioa_page_t xu_a_locked[UIOA_IOV_MAX];
168c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		} xu_aio;
169c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 
170c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		/*
171c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		 * Copy Reduction Support -- facilate loaning / returning of
172c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		 * filesystem cache buffers.
173c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		 */
174c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		struct {
175c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			int xu_zc_rw;	/* read or write buffer */
176c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 			void *xu_zc_priv;	/* fs specific */
177c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 		} xu_zc;
178c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 	} xu_ext;
179c242f9a0Schunli zhang - Sun Microsystems - Irvine United States } xuio_t;
180c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 
181c242f9a0Schunli zhang - Sun Microsystems - Irvine United States #define	XUIO_XUZC_PRIV(xuio)    xuio->xu_ext.xu_zc.xu_zc_priv
182c242f9a0Schunli zhang - Sun Microsystems - Irvine United States #define	XUIO_XUZC_RW(xuio)	xuio->xu_ext.xu_zc.xu_zc_rw
183c242f9a0Schunli zhang - Sun Microsystems - Irvine United States 
18417169044Sbrutus #define	UIOA_ALLOC	0x0001		/* allocated but not yet initialized */
18517169044Sbrutus #define	UIOA_INIT	0x0002		/* initialized but not yet enabled */
18617169044Sbrutus #define	UIOA_ENABLED	0x0004		/* enabled, asynch i/o active */
18717169044Sbrutus #define	UIOA_FINI	0x0008		/* finished waiting for uioafini() */
18817169044Sbrutus 
18917169044Sbrutus #define	UIOA_CLR	(~0x000F)	/* clear mutually exclusive bits */
19017169044Sbrutus 
19117169044Sbrutus #define	UIOA_POLL	0x0010		/* need dcopy_poll() */
19217169044Sbrutus 
1937c478bd9Sstevel@tonic-gate #define	uio_loffset	_uio_offset._f
1947c478bd9Sstevel@tonic-gate #if !defined(_LP64)
1957c478bd9Sstevel@tonic-gate #define	uio_offset	_uio_offset._p._l
1967c478bd9Sstevel@tonic-gate #else
1977c478bd9Sstevel@tonic-gate #define	uio_offset	uio_loffset
1987c478bd9Sstevel@tonic-gate #endif
1997c478bd9Sstevel@tonic-gate 
2007c478bd9Sstevel@tonic-gate #define	uio_llimit	_uio_limit._f
2017c478bd9Sstevel@tonic-gate #if !defined(_LP64)
2027c478bd9Sstevel@tonic-gate #define	uio_limit	_uio_limit._p._l
2037c478bd9Sstevel@tonic-gate #else
2047c478bd9Sstevel@tonic-gate #define	uio_limit	uio_llimit
2057c478bd9Sstevel@tonic-gate #endif
2067c478bd9Sstevel@tonic-gate 
2077c478bd9Sstevel@tonic-gate /*
2087c478bd9Sstevel@tonic-gate  * I/O direction.
2097c478bd9Sstevel@tonic-gate  */
2107c478bd9Sstevel@tonic-gate typedef enum uio_rw { UIO_READ, UIO_WRITE } uio_rw_t;
2117c478bd9Sstevel@tonic-gate 
2127c478bd9Sstevel@tonic-gate /*
2137c478bd9Sstevel@tonic-gate  * uio_extflg: extended flags
2147c478bd9Sstevel@tonic-gate  *
2157c478bd9Sstevel@tonic-gate  * NOTE: This flag will be used in uiomove to determine if non-temporal
2167c478bd9Sstevel@tonic-gate  * access, ie, access bypassing caches, should be used.  Filesystems that
2177c478bd9Sstevel@tonic-gate  * don't initialize this field could experience suboptimal performance due to
2187c478bd9Sstevel@tonic-gate  * the random data the field contains.
21917169044Sbrutus  *
22017169044Sbrutus  * NOTE: This flag is also used by uioasync callers to pass an extended
22117169044Sbrutus  * uio_t (uioa_t), to uioasync enabled consumers. Unlike above all
22217169044Sbrutus  * consumers of a uioa_t require the uio_extflg to be initialized.
2237c478bd9Sstevel@tonic-gate  */
2247c478bd9Sstevel@tonic-gate #define	UIO_COPY_DEFAULT	0x0000	/* no special options to copy */
2257c478bd9Sstevel@tonic-gate #define	UIO_COPY_CACHED		0x0001	/* copy should not bypass caches */
2267c478bd9Sstevel@tonic-gate 
22717169044Sbrutus #define	UIO_ASYNC		0x0002	/* uio_t is really a uioa_t */
228c242f9a0Schunli zhang - Sun Microsystems - Irvine United States #define	UIO_XUIO		0x0004	/* Structure is xuio_t */
22917169044Sbrutus 
23017169044Sbrutus /*
23117169044Sbrutus  * Global uioasync capability shadow state.
23217169044Sbrutus  */
23317169044Sbrutus typedef struct uioasync_s {
23417169044Sbrutus 	boolean_t	enabled;	/* Is uioasync enabled? */
23517169044Sbrutus 	size_t		mincnt;		/* Minimum byte count for use of */
23617169044Sbrutus } uioasync_t;
23717169044Sbrutus 
2387c478bd9Sstevel@tonic-gate #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
2397c478bd9Sstevel@tonic-gate 
240b819cea2SGordon Ross #if defined(_KERNEL) || defined(_FAKE_KERNEL)
2417c478bd9Sstevel@tonic-gate 
2427c478bd9Sstevel@tonic-gate int	uiomove(void *, size_t, enum uio_rw, uio_t *);
2436f5f1c63SDonghai Qiao void	uio_prefaultpages(ssize_t, uio_t *);
2442fdbea25SAleksandr Guzovskiy int	uiocopy(void *, size_t, enum uio_rw, uio_t *, size_t *);
2457c478bd9Sstevel@tonic-gate int	ureadc(int, uio_t *);	/* should be errno_t in future */
2467c478bd9Sstevel@tonic-gate int	uwritec(struct uio *);
2477c478bd9Sstevel@tonic-gate void	uioskip(uio_t *, size_t);
2487c478bd9Sstevel@tonic-gate int	uiodup(uio_t *, uio_t *, iovec_t *, int);
2497c478bd9Sstevel@tonic-gate 
25017169044Sbrutus int	uioamove(void *, size_t, enum uio_rw, uioa_t *);
25117169044Sbrutus int	uioainit(uio_t *, uioa_t *);
25217169044Sbrutus int	uioafini(uio_t *, uioa_t *);
25317169044Sbrutus extern	uioasync_t uioasync;
25417169044Sbrutus 
2557c478bd9Sstevel@tonic-gate #else	/* defined(_KERNEL) */
2567c478bd9Sstevel@tonic-gate 
2577c478bd9Sstevel@tonic-gate extern ssize_t readv(int, const struct iovec *, int);
2587c478bd9Sstevel@tonic-gate extern ssize_t writev(int, const struct iovec *, int);
2597c478bd9Sstevel@tonic-gate 
260fca543caSDJ Hoffman /*
261fca543caSDJ Hoffman  * When in the large file compilation environment,
262fca543caSDJ Hoffman  * map preadv/pwritev to their 64 bit offset versions
263fca543caSDJ Hoffman  */
264fca543caSDJ Hoffman #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
265fca543caSDJ Hoffman #ifdef __PRAGMA_REDEFINE_EXTNAME
266fca543caSDJ Hoffman #pragma	redefine_extname	preadv	preadv64
267fca543caSDJ Hoffman #pragma	redefine_extname	pwritev	pwritev64
268fca543caSDJ Hoffman #else /* __PRAGMA_REDEFINE_EXTNAME */
269fca543caSDJ Hoffman #define	preadv	preadv64
270fca543caSDJ Hoffman #define	pwritev	pwritev64
271fca543caSDJ Hoffman #endif /* __PRAGMA_REDEFINE_EXTNAME */
272fca543caSDJ Hoffman #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
273fca543caSDJ Hoffman 
274fca543caSDJ Hoffman /* In the LP64 compilation environment, the APIs are already large file */
275fca543caSDJ Hoffman #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
276fca543caSDJ Hoffman #ifdef  __PRAGMA_REDEFINE_EXTNAME
277fca543caSDJ Hoffman #pragma	redefine_extname	preadv64	preadv
278fca543caSDJ Hoffman #pragma	redefine_extname	pwritev64	pwritev
279fca543caSDJ Hoffman #else   /* __PRAGMA_REDEFINE_EXTNAME */
280fca543caSDJ Hoffman #define	preadv64	preadv
281fca543caSDJ Hoffman #define	pwritev64	pwritev
282fca543caSDJ Hoffman #endif  /* __PRAGMA_REDEFINE_EXTNAME */
283fca543caSDJ Hoffman #endif  /* _LP64 && _LARGEFILE64_SOURCE */
284fca543caSDJ Hoffman 
285fca543caSDJ Hoffman extern ssize_t preadv(int, const struct iovec *, int, off_t);
286fca543caSDJ Hoffman extern ssize_t pwritev(int, const struct iovec *, int, off_t);
287fca543caSDJ Hoffman 
288fca543caSDJ Hoffman /*
289fca543caSDJ Hoffman  * preadv64 and pwritev64 should be defined when:
290fca543caSDJ Hoffman  * - Using the transitional compilation environment, and not
291fca543caSDJ Hoffman  *     the large file compilation environment.
292fca543caSDJ Hoffman  */
293fca543caSDJ Hoffman #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
294fca543caSDJ Hoffman 	!defined(__PRAGMA_REDEFINE_EXTNAME))
295fca543caSDJ Hoffman extern ssize_t preadv64(int, const struct iovec *, int, off64_t);
296fca543caSDJ Hoffman extern ssize_t pwritev64(int, const struct iovec *, int, off64_t);
297fca543caSDJ Hoffman #endif /* _LARGEFILE64_SOURCE */
298fca543caSDJ Hoffman 
2997c478bd9Sstevel@tonic-gate #endif	/* defined(_KERNEL) */
3007c478bd9Sstevel@tonic-gate 
3017c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
3027c478bd9Sstevel@tonic-gate }
3037c478bd9Sstevel@tonic-gate #endif
3047c478bd9Sstevel@tonic-gate 
3057c478bd9Sstevel@tonic-gate #endif	/* _SYS_UIO_H */
306