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zfs/include/sys/uio_impl.h

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Add basic uio support This code originates in OpenSolaris and was modified by KQ Infotech to be compatible with Linux. While supporting uios in the short term is useful to get something working this is not an abstraction we want to keep. This code is expected to be short lived and removed as soon as all the remaining uio based APIs and updated.
2010-12-22 20:13:57 +00:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#ifndef _SYS_UIO_IMPL_H
#define _SYS_UIO_IMPL_H
#include <sys/uio.h>
Extending FreeBSD UIO Struct In FreeBSD the struct uio was just a typedef to uio_t. In order to extend this struct, outside of the definition for the struct uio, the struct uio has been embedded inside of a uio_t struct. Also renamed all the uio_* interfaces to be zfs_uio_* to make it clear this is a ZFS interface. Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Jorgen Lundman <lundman@lundman.net> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Brian Atkinson <batkinson@lanl.gov> Closes #11438
2021-01-21 05:27:30 +00:00
extern int zfs_uiomove(void *, size_t, zfs_uio_rw_t, zfs_uio_t *);
extern int zfs_uio_prefaultpages(ssize_t, zfs_uio_t *);
extern int zfs_uiocopy(void *, size_t, zfs_uio_rw_t, zfs_uio_t *, size_t *);
extern void zfs_uioskip(zfs_uio_t *, size_t);
Add basic uio support This code originates in OpenSolaris and was modified by KQ Infotech to be compatible with Linux. While supporting uios in the short term is useful to get something working this is not an abstraction we want to keep. This code is expected to be short lived and removed as soon as all the remaining uio based APIs and updated.
2010-12-22 20:13:57 +00:00
#endif /* _SYS_UIO_IMPL_H */