FreeBSD/Linux Kernel Cross Reference
sys/compat/linuxkpi/common/include/linux/lockdep.h

     /*-
      * Copyright (c) 2010 Isilon Systems, Inc.
      * Copyright (c) 2010 iX Systems, Inc.
      * Copyright (c) 2010 Panasas, Inc.
      * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
      * 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 unmodified, 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 AUTHOR ``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 AUTHOR 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 _LINUXKPI_LINUX_LOCKDEP_H_
    #define _LINUXKPI_LINUX_LOCKDEP_H_
    
    #include <sys/types.h>
    #include <sys/lock.h>
    
    struct lock_class_key {
    };
    struct lockdep_map {
    };
    struct pin_cookie {
    };
    
    #define lockdep_set_class(lock, key)
    #define lockdep_set_subclass(lock, sub)
    #define lockdep_set_class_and_name(lock, key, name)
    #define lockdep_set_current_reclaim_state(g) do { } while (0)
    #define lockdep_clear_current_reclaim_state() do { } while (0)
    #define lockdep_init_map(_map, _name, _key, _x) do { } while(0)
    #define lockdep_register_key(key) do { } while(0)
    #define lockdep_unregister_key(key) do { } while(0)
    
    #ifdef INVARIANTS
    #define lockdep_assert_not_held(m) do {                                 \
            struct lock_object *__lock = (struct lock_object *)(m);         \
            LOCK_CLASS(__lock)->lc_assert(__lock, LA_UNLOCKED);             \
    } while (0)
    
    #define lockdep_assert_held(m) do {                                     \
            struct lock_object *__lock = (struct lock_object *)(m);         \
            LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED);               \
    } while (0)
    
    #define lockdep_assert_held_once(m) do {                                \
            struct lock_object *__lock = (struct lock_object *)(m);         \
            LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED | LA_NOTRECURSED); \
    } while (0)
    
    #define lockdep_assert_none_held_once() do { } while (0)
    
    static __inline bool
    lockdep_is_held(void *__m)
    {
            struct lock_object *__lock;
            struct thread *__td;
    
            __lock = __m;
            return (LOCK_CLASS(__lock)->lc_owner(__lock, &__td) != 0);
    }
    #define lockdep_is_held_type(_m, _t) lockdep_is_held(_m)
    
    #else
    #define lockdep_assert_not_held(m) do { (void)(m); } while (0)
    #define lockdep_assert_held(m) do { (void)(m); } while (0)
    #define lockdep_assert_none_held_once() do { } while (0)
    
    #define lockdep_assert_held_once(m) do { (void)(m); } while (0)
    
    #define lockdep_is_held(m)      1
    #define lockdep_is_held_type(_m, _t)    1
    #endif
    
    #define might_lock(m)   do { } while (0)
    #define might_lock_read(m) do { } while (0)
    #define might_lock_nested(m, n) do { } while (0)
    
    #define lock_acquire(...) do { } while (0)
    #define lock_release(...) do { } while (0)
   #define lock_acquire_shared_recursive(...) do { } while (0)
   
   #define mutex_acquire(...) do { } while (0)
   #define mutex_release(...) do { } while (0)
   
   #define lock_map_acquire(_map) do { } while (0)
   #define lock_map_acquire_read(_map) do { } while (0)
   #define lock_map_release(_map) do { } while (0)
   
   #define lockdep_pin_lock(l) ({ struct pin_cookie __pc = { }; __pc; })
   #define lockdep_repin_lock(l,c) do { (void)(l); (void)(c); } while (0)
   #define lockdep_unpin_lock(l,c) do { (void)(l); (void)(c); } while (0)
   
   #endif /* _LINUXKPI_LINUX_LOCKDEP_H_ */

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