xref: /freebsd-10.2-release/sys/dev/filemon/filemon_lock.c

/*-
 * Copyright (c) 2009-2011, Juniper Networks, Inc.
 * Copyright (c) 2015, EMC Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL JUNIPER NETWORKS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD: releng/10.2/sys/dev/filemon/filemon_lock.c 293893 2016-01-14 09:10:46Z glebius $");

static __inline void
filemon_filemon_lock(struct filemon *filemon)
{

	sx_xlock(&filemon->lock);
}

static __inline void
filemon_filemon_unlock(struct filemon *filemon)
{

	sx_xunlock(&filemon->lock);
}

static __inline void
filemon_lock_read(void)
{

	sx_slock(&access_lock);
}

static __inline void
filemon_unlock_read(void)
{

	sx_sunlock(&access_lock);
}

static __inline void
filemon_lock_write(void)
{

	sx_xlock(&access_lock);
}

static __inline void
filemon_unlock_write(void)
{

	sx_xunlock(&access_lock);
}