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d1d7e2689d
The vast majority of these changes are in Linux specific code. They are the result of not having an automated style checker to validate the code when it was originally written. Others were caused when the common code was slightly adjusted for Linux. This patch contains no functional changes. It only refreshes the code to conform to style guide. Everyone submitting patches for inclusion upstream should now run 'make checkstyle' and resolve any warning prior to opening a pull request. The automated builders have been updated to fail a build if when 'make checkstyle' detects an issue. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1821
109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/*
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* University Copyright- Copyright (c) 1982, 1986, 1988
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* The Regents of the University of California
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* All Rights Reserved
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*
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* University Acknowledgment- Portions of this document are derived from
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* software developed by the University of California, Berkeley, and its
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* contributors.
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*/
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#ifndef _LIBSPL_SYS_UIO_H
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#define _LIBSPL_SYS_UIO_H
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#include_next <sys/uio.h>
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typedef struct iovec iovec_t;
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typedef enum uio_rw {
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UIO_READ = 0,
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UIO_WRITE = 1,
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} uio_rw_t;
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typedef enum uio_seg {
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UIO_USERSPACE = 0,
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UIO_SYSSPACE = 1,
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UIO_USERISPACE = 2,
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} uio_seg_t;
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typedef struct uio {
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struct iovec *uio_iov; /* pointer to array of iovecs */
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int uio_iovcnt; /* number of iovecs */
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offset_t uio_loffset; /* file offset */
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uio_seg_t uio_segflg; /* address space (kernel or user) */
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uint16_t uio_fmode; /* file mode flags */
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uint16_t uio_extflg; /* extended flags */
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offset_t uio_limit; /* u-limit (maximum byte offset) */
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ssize_t uio_resid; /* residual count */
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} uio_t;
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typedef enum xuio_type {
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UIOTYPE_ASYNCIO,
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UIOTYPE_ZEROCOPY,
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} xuio_type_t;
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#define UIOA_IOV_MAX 16
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typedef struct uioa_page_s { /* locked uio_iov state */
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int uioa_pfncnt; /* count of pfn_t(s) in *uioa_ppp */
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void **uioa_ppp; /* page_t or pfn_t arrary */
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caddr_t uioa_base; /* address base */
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size_t uioa_len; /* span length */
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} uioa_page_t;
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typedef struct xuio {
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uio_t xu_uio; /* embedded UIO structure */
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/* Extended uio fields */
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enum xuio_type xu_type; /* uio type */
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union {
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struct {
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uint32_t xu_a_state; /* state of async i/o */
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ssize_t xu_a_mbytes; /* bytes moved */
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uioa_page_t *xu_a_lcur; /* uioa_locked[] pointer */
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void **xu_a_lppp; /* lcur->uioa_pppp[] pointer */
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void *xu_a_hwst[4]; /* opaque hardware state */
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uioa_page_t xu_a_locked[UIOA_IOV_MAX];
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} xu_aio;
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struct {
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int xu_zc_rw; /* read or write buffer */
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void *xu_zc_priv; /* fs specific */
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} xu_zc;
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} xu_ext;
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} xuio_t;
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#define XUIO_XUZC_PRIV(xuio) xuio->xu_ext.xu_zc.xu_zc_priv
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#define XUIO_XUZC_RW(xuio) xuio->xu_ext.xu_zc.xu_zc_rw
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#endif /* _SYS_UIO_H */
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