xref: /freebsd/sys/contrib/openzfs/module/os/linux/zfs/mmp_os.c (revision dbd5678dca91abcefe8d046aa2f9b66497a95ffb)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or https://opensource.org/licenses/CDDL-1.0.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2017 by Lawrence Livermore National Security, LLC.
23  */
24 
25 #include <sys/zfs_context.h>
26 #include <sys/mmp.h>
27 
28 int
param_set_multihost_interval(const char * val,zfs_kernel_param_t * kp)29 param_set_multihost_interval(const char *val, zfs_kernel_param_t *kp)
30 {
31 	int ret;
32 
33 	ret = spl_param_set_u64(val, kp);
34 	if (ret < 0)
35 		return (ret);
36 
37 	if (spa_mode_global != SPA_MODE_UNINIT)
38 		mmp_signal_all_threads();
39 
40 	return (ret);
41 }
42