mirror of
https://git.proxmox.com/git/mirror_zfs
synced 2025-10-31 20:33:04 +00:00
9d0887402b
This will be used to implement kqfilter support for zvol cdevs. Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Rob Wing <rew@FreeBSD.org> Closes #13773
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2022 Rob Wing
|
|
*
|
|
* 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 THE REGENTS 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 THE REGENTS 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/param.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/sx.h>
|
|
#include <sys/event.h>
|
|
|
|
#include <sys/freebsd_event.h>
|
|
|
|
static void
|
|
knlist_sx_xlock(void *arg)
|
|
{
|
|
|
|
sx_xlock((struct sx *)arg);
|
|
}
|
|
|
|
static void
|
|
knlist_sx_xunlock(void *arg)
|
|
{
|
|
|
|
sx_xunlock((struct sx *)arg);
|
|
}
|
|
|
|
static void
|
|
knlist_sx_assert_lock(void *arg, int what)
|
|
{
|
|
|
|
if (what == LA_LOCKED)
|
|
sx_assert((struct sx *)arg, SX_LOCKED);
|
|
else
|
|
sx_assert((struct sx *)arg, SX_UNLOCKED);
|
|
}
|
|
|
|
void
|
|
knlist_init_sx(struct knlist *knl, struct sx *lock)
|
|
{
|
|
|
|
knlist_init(knl, lock, knlist_sx_xlock, knlist_sx_xunlock,
|
|
knlist_sx_assert_lock);
|
|
}
|