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716154c592
Updated AUTHORS, COPYING, DISCLAIMER, and INSTALL files. Added standardized headers to all source file to clearly indicate the copyright, license, and to give credit where credit is due.
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://github.com/behlendorf/spl/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************
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* Solaris Porting Layer (SPL) Kobj Implementation.
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\*****************************************************************************/
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#include <sys/kobj.h>
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#ifdef DEBUG_SUBSYSTEM
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#undef DEBUG_SUBSYSTEM
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#endif
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#define DEBUG_SUBSYSTEM S_KOBJ
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struct _buf *
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kobj_open_file(const char *name)
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{
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struct _buf *file;
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vnode_t *vp;
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int rc;
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ENTRY;
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file = kmalloc(sizeof(_buf_t), GFP_KERNEL);
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if (file == NULL)
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RETURN((_buf_t *)-1UL);
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if ((rc = vn_open(name, UIO_SYSSPACE, FREAD, 0644, &vp, 0, 0))) {
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kfree(file);
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RETURN((_buf_t *)-1UL);
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}
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file->vp = vp;
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RETURN(file);
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} /* kobj_open_file() */
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EXPORT_SYMBOL(kobj_open_file);
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void
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kobj_close_file(struct _buf *file)
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{
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ENTRY;
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VOP_CLOSE(file->vp, 0, 0, 0, 0, 0);
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VN_RELE(file->vp);
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kfree(file);
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EXIT;
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} /* kobj_close_file() */
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EXPORT_SYMBOL(kobj_close_file);
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int
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kobj_read_file(struct _buf *file, char *buf, ssize_t size, offset_t off)
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{
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ENTRY;
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RETURN(vn_rdwr(UIO_READ, file->vp, buf, size, off,
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UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL));
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} /* kobj_read_file() */
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EXPORT_SYMBOL(kobj_read_file);
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int
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kobj_get_filesize(struct _buf *file, uint64_t *size)
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{
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vattr_t vap;
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int rc;
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ENTRY;
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rc = VOP_GETATTR(file->vp, &vap, 0, 0, NULL);
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if (rc)
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RETURN(rc);
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*size = vap.va_size;
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RETURN(rc);
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} /* kobj_get_filesize() */
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EXPORT_SYMBOL(kobj_get_filesize);
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