mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 10:21:01 +03:00
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/*
|
|
* This file is part of the SPL: Solaris Porting Layer.
|
|
*
|
|
* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
|
|
* Produced at Lawrence Livermore National Laboratory
|
|
* Written by:
|
|
* Brian Behlendorf <behlendorf1@llnl.gov>,
|
|
* Herb Wartens <wartens2@llnl.gov>,
|
|
* Jim Garlick <garlick@llnl.gov>
|
|
* UCRL-CODE-235197
|
|
*
|
|
* This is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <sys/kobj.h>
|
|
|
|
#ifdef DEBUG_SUBSYSTEM
|
|
#undef DEBUG_SUBSYSTEM
|
|
#endif
|
|
|
|
#define DEBUG_SUBSYSTEM S_KOBJ
|
|
|
|
struct _buf *
|
|
kobj_open_file(const char *name)
|
|
{
|
|
struct _buf *file;
|
|
vnode_t *vp;
|
|
int rc;
|
|
ENTRY;
|
|
|
|
file = kmalloc(sizeof(_buf_t), GFP_KERNEL);
|
|
if (file == NULL)
|
|
RETURN((_buf_t *)-1UL);
|
|
|
|
if ((rc = vn_open(name, UIO_SYSSPACE, FREAD, 0644, &vp, 0, 0))) {
|
|
kfree(file);
|
|
RETURN((_buf_t *)-1UL);
|
|
}
|
|
|
|
file->vp = vp;
|
|
|
|
RETURN(file);
|
|
} /* kobj_open_file() */
|
|
EXPORT_SYMBOL(kobj_open_file);
|
|
|
|
void
|
|
kobj_close_file(struct _buf *file)
|
|
{
|
|
ENTRY;
|
|
VOP_CLOSE(file->vp, 0, 0, 0, 0, 0);
|
|
VN_RELE(file->vp);
|
|
kfree(file);
|
|
EXIT;
|
|
} /* kobj_close_file() */
|
|
EXPORT_SYMBOL(kobj_close_file);
|
|
|
|
int
|
|
kobj_read_file(struct _buf *file, char *buf, ssize_t size, offset_t off)
|
|
{
|
|
ENTRY;
|
|
RETURN(vn_rdwr(UIO_READ, file->vp, buf, size, off,
|
|
UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL));
|
|
} /* kobj_read_file() */
|
|
EXPORT_SYMBOL(kobj_read_file);
|
|
|
|
int
|
|
kobj_get_filesize(struct _buf *file, uint64_t *size)
|
|
{
|
|
vattr_t vap;
|
|
int rc;
|
|
ENTRY;
|
|
|
|
rc = VOP_GETATTR(file->vp, &vap, 0, 0, NULL);
|
|
if (rc)
|
|
RETURN(rc);
|
|
|
|
*size = vap.va_size;
|
|
|
|
RETURN(rc);
|
|
} /* kobj_get_filesize() */
|
|
EXPORT_SYMBOL(kobj_get_filesize);
|