mirror_zfs/include/os/freebsd/spl/sys/mod_os.h
Ryan Moeller 7bb707ffaf FreeBSD: Organize sysctls
FreeBSD had a few platform-specific ARC tunables in the wrong place:

- Move FreeBSD-specifc ARC tunables into the same vfs.zfs.arc node as
  the rest of the ARC tunables.
- Move the handlers from arc_os.c to sysctl_os.c and add compat sysctls
  for the legacy names.

While here, some additional clean up:

- Most handlers are specific to a particular variable and don't need a
  pointer passed through the args.
- Group blocks of related variables, handlers, and sysctl declarations
  into logical sections.
- Match variable types for temporaries in handlers with the type of the
  global variable.
- Remove leftover comments.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #13756
2022-09-02 13:26:24 -07:00

127 lines
4.2 KiB
C

/*
* Copyright (c) 2020 iXsystems, Inc.
* 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 THE AUTHORS 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 AUTHORS 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.
*
* $FreeBSD$
*/
#ifndef _SPL_MOD_H
#define _SPL_MOD_H
#include <sys/sysctl.h>
#define EXPORT_SYMBOL(x)
#define module_param(a, b, c)
#define MODULE_PARM_DESC(a, b)
#define ZMOD_RW CTLFLAG_RWTUN
#define ZMOD_RD CTLFLAG_RDTUN
#define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc) \
SYSCTL_DECL(_vfs_ ## scope_prefix); \
SYSCTL_##type(_vfs_ ## scope_prefix, OID_AUTO, name, perm, \
&name_prefix ## name, 0, desc)
#define ZFS_MODULE_PARAM_ARGS SYSCTL_HANDLER_ARGS
#define ZFS_MODULE_PARAM_CALL_IMPL(parent, name, perm, args, desc) \
SYSCTL_DECL(parent); \
SYSCTL_PROC(parent, OID_AUTO, name, CTLFLAG_MPSAFE | perm | args, desc)
#define ZFS_MODULE_PARAM_CALL( \
scope_prefix, name_prefix, name, func, _, perm, desc) \
ZFS_MODULE_PARAM_CALL_IMPL(_vfs_ ## scope_prefix, name, perm, \
func ## _args(name_prefix ## name), desc)
#define ZFS_MODULE_VIRTUAL_PARAM_CALL ZFS_MODULE_PARAM_CALL
#define param_set_arc_long_args(var) \
CTLTYPE_ULONG, &var, 0, param_set_arc_long, "LU"
#define param_set_arc_int_args(var) \
CTLTYPE_INT, &var, 0, param_set_arc_int, "I"
#define param_set_arc_min_args(var) \
CTLTYPE_ULONG, NULL, 0, param_set_arc_min, "LU"
#define param_set_arc_max_args(var) \
CTLTYPE_ULONG, NULL, 0, param_set_arc_max, "LU"
#define param_set_arc_free_target_args(var) \
CTLTYPE_UINT, NULL, 0, param_set_arc_free_target, "IU"
#define param_set_arc_no_grow_shift_args(var) \
CTLTYPE_INT, NULL, 0, param_set_arc_no_grow_shift, "I"
#define param_set_deadman_failmode_args(var) \
CTLTYPE_STRING, NULL, 0, param_set_deadman_failmode, "A"
#define param_set_deadman_synctime_args(var) \
CTLTYPE_ULONG, NULL, 0, param_set_deadman_synctime, "LU"
#define param_set_deadman_ziotime_args(var) \
CTLTYPE_ULONG, NULL, 0, param_set_deadman_ziotime, "LU"
#define param_set_multihost_interval_args(var) \
CTLTYPE_ULONG, NULL, 0, param_set_multihost_interval, "LU"
#define param_set_slop_shift_args(var) \
CTLTYPE_INT, NULL, 0, param_set_slop_shift, "I"
#define param_set_min_auto_ashift_args(var) \
CTLTYPE_U64, NULL, 0, param_set_min_auto_ashift, "QU"
#define param_set_max_auto_ashift_args(var) \
CTLTYPE_U64, NULL, 0, param_set_max_auto_ashift, "QU"
#define fletcher_4_param_set_args(var) \
CTLTYPE_STRING, NULL, 0, fletcher_4_param, "A"
#include <sys/kernel.h>
#define module_init(fn) \
static void \
wrap_ ## fn(void *dummy __unused) \
{ \
fn(); \
} \
SYSINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL)
#define module_init_early(fn) \
static void \
wrap_ ## fn(void *dummy __unused) \
{ \
fn(); \
} \
SYSINIT(zfs_ ## fn, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_FIRST, wrap_ ## fn, NULL)
#define module_exit(fn) \
static void \
wrap_ ## fn(void *dummy __unused) \
{ \
fn(); \
} \
SYSUNINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL)
#endif /* SPL_MOD_H */