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967ce75669
For each tunable declaration, we create a zfs_tunable_t with its details, and then a pointer to it in the 'zfs_tunables' ELF section, that we can access later with a little support from the linker. Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #17537
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
// SPDX-License-Identifier: CDDL-1.0
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
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* Copyright (c) 2012, Joyent, Inc. All rights reserved.
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* Copyright (c) 2025, Rob Norris <robn@despairlabs.com>
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*/
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#ifndef _SYS_MOD_H
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#define _SYS_MOD_H
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#include <sys/tunables.h>
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#define ZFS_MODULE_PARAM(scope, prefix, name, type, perm, desc) \
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static const zfs_tunable_t _zfs_tunable_##prefix##name = { \
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.zt_name = #prefix#name, \
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.zt_varp = &prefix##name, \
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.zt_varsz = sizeof (prefix##name), \
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.zt_type = ZFS_TUNABLE_TYPE_##type, \
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.zt_perm = ZFS_TUNABLE_PERM_##perm, \
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.zt_desc = desc \
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}; \
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static const zfs_tunable_t * \
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__zfs_tunable_##prefix##name \
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__attribute__((__section__("zfs_tunables"))) \
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__attribute__((__used__)) \
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= &_zfs_tunable_##prefix##name;
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#define ZFS_MODULE_PARAM_ARGS void
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#define ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, \
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getfunc, perm, desc)
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#define EXPORT_SYMBOL(x)
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#endif
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