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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) 2016 Gvozden Neskovic <neskovic@gmail.com>.
*/
#ifndef _MOD_COMPAT_H
#define _MOD_COMPAT_H
#include <linux/module.h>
#include <linux/moduleparam.h>
/* Grsecurity kernel API change */
#ifdef MODULE_PARAM_CALL_CONST
typedef const struct kernel_param zfs_kernel_param_t;
#else
typedef struct kernel_param zfs_kernel_param_t;
#endif
#define ZMOD_RW 0644
#define ZMOD_RD 0444
/* BEGIN CSTYLED */
#define INT int
#define UINT uint
#define ULONG ulong
#define LONG long
#define STRING charp
/* END CSTYLED */
enum scope_prefix_types {
zfs,
zfs_arc,
zfs_condense,
zfs_dbuf,
zfs_dbuf_cache,
zfs_deadman,
zfs_dedup,
zfs_l2arc,
zfs_livelist,
zfs_livelist_condense,
zfs_lua,
zfs_metaslab,
zfs_mg,
zfs_multihost,
zfs_prefetch,
zfs_reconstruct,
zfs_recv,
zfs_send,
zfs_spa,
zfs_trim,
zfs_txg,
zfs_vdev,
zfs_vdev_cache,
zfs_vdev_mirror,
zfs_zevent,
zfs_zio,
zfs_zil
};
/*
* Declare a module parameter / sysctl node
*
* "scope_prefix" the part of the the sysctl / sysfs tree the node resides under
* (currently a no-op on Linux)
* "name_prefix" the part of the variable name that will be excluded from the
* exported names on platforms with a hierarchical namespace
* "name" the part of the variable that will be exposed on platforms with a
* hierarchical namespace, or as name_prefix ## name on Linux
* "type" the variable type
* "perm" the permissions (read/write or read only)
* "desc" a brief description of the option
*
* Examples:
* ZFS_MODULE_PARAM(zfs_vdev_mirror, zfs_vdev_mirror_, rotating_inc, UINT,
* ZMOD_RW, "Rotating media load increment for non-seeking I/O's");
* on FreeBSD:
* vfs.zfs.vdev.mirror.rotating_inc
* on Linux:
* zfs_vdev_mirror_rotating_inc
*
* ZFS_MODULE_PARAM(zfs, , dmu_prefetch_max, UINT, ZMOD_RW,
* "Limit one prefetch call to this size");
* on FreeBSD:
* vfs.zfs.dmu_prefetch_max
* on Linux:
* dmu_prefetch_max
*/
/* BEGIN CSTYLED */
#define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc) \
CTASSERT_GLOBAL((sizeof (scope_prefix) == sizeof (enum scope_prefix_types))); \
module_param(name_prefix ## name, type, perm); \
MODULE_PARM_DESC(name_prefix ## name, desc)
/* END CSTYLED */
/*
* Declare a module parameter / sysctl node
*
* "scope_prefix" the part of the the sysctl / sysfs tree the node resides under
* (currently a no-op on Linux)
* "name_prefix" the part of the variable name that will be excluded from the
* exported names on platforms with a hierarchical namespace
* "name" the part of the variable that will be exposed on platforms with a
* hierarchical namespace, or as name_prefix ## name on Linux
* "setfunc" setter function
* "getfunc" getter function
* "perm" the permissions (read/write or read only)
* "desc" a brief description of the option
*
* Examples:
* ZFS_MODULE_PARAM_CALL(zfs_spa, spa_, slop_shift, param_set_slop_shift,
* param_get_int, ZMOD_RW, "Reserved free space in pool");
* on FreeBSD:
* vfs.zfs.spa_slop_shift
* on Linux:
* spa_slop_shift
*/
/* BEGIN CSTYLED */
#define ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, getfunc, perm, desc) \
CTASSERT_GLOBAL((sizeof (scope_prefix) == sizeof (enum scope_prefix_types))); \
module_param_call(name_prefix ## name, setfunc, getfunc, &name_prefix ## name, perm); \
MODULE_PARM_DESC(name_prefix ## name, desc)
/* END CSTYLED */
#define ZFS_MODULE_PARAM_ARGS const char *buf, zfs_kernel_param_t *kp
#define ZFS_MODULE_DESCRIPTION(s) MODULE_DESCRIPTION(s)
#define ZFS_MODULE_AUTHOR(s) MODULE_AUTHOR(s)
#define ZFS_MODULE_LICENSE(s) MODULE_LICENSE(s)
#define ZFS_MODULE_VERSION(s) MODULE_VERSION(s)
#endif /* _MOD_COMPAT_H */
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