FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/freebsd/spl/sys/mod_os.h

     /*
      * 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 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_u64_args(var) \
        CTLTYPE_U64, &var, 0, param_set_arc_u64, "QU"
    
    #define param_set_arc_int_args(var) \
        CTLTYPE_INT, &var, 0, param_set_arc_int, "I"
    
    #define param_set_arc_min_args(var) \
        CTLTYPE_U64, NULL, 0, param_set_arc_min, "QU"
    
    #define param_set_arc_max_args(var) \
        CTLTYPE_U64, NULL, 0, param_set_arc_max, "QU"
    
    #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_U64, NULL, 0, param_set_deadman_synctime, "QU"
    
    #define param_set_deadman_ziotime_args(var) \
        CTLTYPE_U64, NULL, 0, param_set_deadman_ziotime, "QU"
    
    #define param_set_multihost_interval_args(var) \
        CTLTYPE_U64, NULL, 0, param_set_multihost_interval, "QU"
    
    #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_UINT, NULL, 0, param_set_min_auto_ashift, "IU"
    
    #define param_set_max_auto_ashift_args(var) \
        CTLTYPE_UINT, NULL, 0, param_set_max_auto_ashift, "IU"
    
    #define fletcher_4_param_set_args(var) \
        CTLTYPE_STRING, NULL, 0, fletcher_4_param, "A"
    
    #define blake3_param_set_args(var) \
        CTLTYPE_STRING, NULL, 0, blake3_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 */

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