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/*
* 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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/errno.h>
#include <sys/kmem.h>
#include <sys/sunddi.h>
#include <sys/zfs_ioctl.h>
#include <sys/zfs_onexit.h>
static int
zfs_onexit_minor_to_state(minor_t minor, zfs_onexit_t **zo)
{
*zo = zfsdev_get_state(minor, ZST_ONEXIT);
if (*zo == NULL)
return (SET_ERROR(EBADF));
return (0);
}
int
zfs_onexit_fd_hold(int fd, minor_t *minorp)
{
file_t *fp, *tmpfp;
zfs_onexit_t *zo;
void *data;
int error;
if ((error = zfs_file_get(fd, &fp)))
return (error);
tmpfp = curthread->td_fpop;
curthread->td_fpop = fp;
error = devfs_get_cdevpriv(&data);
if (error == 0)
*minorp = (minor_t)(uintptr_t)data;
curthread->td_fpop = tmpfp;
if (error != 0)
return (SET_ERROR(EBADF));
return (zfs_onexit_minor_to_state(*minorp, &zo));
}
void
zfs_onexit_fd_rele(int fd)
{
zfs_file_put(fd);
}
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