1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef _LINUXKPI_LINUX_LOCKDEP_H_ 31 #define _LINUXKPI_LINUX_LOCKDEP_H_ 32 33 #include <sys/types.h> 34 #include <sys/lock.h> 35 36 struct lock_class_key { 37 }; 38 struct lockdep_map { 39 }; 40 struct pin_cookie { 41 }; 42 43 #define lockdep_set_class(lock, key) 44 #define lockdep_set_subclass(lock, sub) 45 #define lockdep_set_class_and_name(lock, key, name) 46 #define lockdep_set_current_reclaim_state(g) do { } while (0) 47 #define lockdep_clear_current_reclaim_state() do { } while (0) 48 #define lockdep_init_map(_map, _name, _key, _x) do { } while(0) 49 #define lockdep_register_key(key) do { } while(0) 50 #define lockdep_unregister_key(key) do { } while(0) 51 52 #ifdef INVARIANTS 53 #define lockdep_assert(cond) do { WARN_ON(!(cond)); } while (0) 54 #define lockdep_assert_once(cond) do { WARN_ON_ONCE(!(cond)); } while (0) 55 56 #define lockdep_assert_not_held(m) do { \ 57 struct lock_object *__lock = (struct lock_object *)(m); \ 58 LOCK_CLASS(__lock)->lc_assert(__lock, LA_UNLOCKED); \ 59 } while (0) 60 61 #define lockdep_assert_held(m) do { \ 62 struct lock_object *__lock = (struct lock_object *)(m); \ 63 LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED); \ 64 } while (0) 65 66 #define lockdep_assert_held_once(m) do { \ 67 struct lock_object *__lock = (struct lock_object *)(m); \ 68 LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED | LA_NOTRECURSED); \ 69 } while (0) 70 71 #define lockdep_assert_none_held_once() do { } while (0) 72 73 #else 74 #define lockdep_assert(cond) do { } while (0) 75 #define lockdep_assert_once(cond) do { } while (0) 76 77 #define lockdep_assert_not_held(m) do { (void)(m); } while (0) 78 #define lockdep_assert_held(m) do { (void)(m); } while (0) 79 #define lockdep_assert_none_held_once() do { } while (0) 80 81 #define lockdep_assert_held_once(m) do { (void)(m); } while (0) 82 83 #endif 84 85 static __inline bool 86 lockdep_is_held(void *__m __diagused) 87 { 88 #ifdef INVARIANTS 89 struct lock_object *__lock; 90 struct thread *__td; 91 92 __lock = __m; 93 return (LOCK_CLASS(__lock)->lc_owner(__lock, &__td) != 0); 94 #else 95 return (true); 96 #endif 97 } 98 #define lockdep_is_held_type(_m, _t) lockdep_is_held(_m) 99 100 #define might_lock(m) do { } while (0) 101 #define might_lock_read(m) do { } while (0) 102 #define might_lock_nested(m, n) do { } while (0) 103 104 #define lock_acquire(...) do { } while (0) 105 #define lock_release(...) do { } while (0) 106 #define lock_acquire_shared_recursive(...) do { } while (0) 107 108 #define mutex_acquire(...) do { } while (0) 109 #define mutex_release(...) do { } while (0) 110 111 #define lock_map_acquire(_map) do { } while (0) 112 #define lock_map_acquire_read(_map) do { } while (0) 113 #define lock_map_release(_map) do { } while (0) 114 115 #define lockdep_pin_lock(l) ({ struct pin_cookie __pc = { }; __pc; }) 116 #define lockdep_repin_lock(l,c) do { (void)(l); (void)(c); } while (0) 117 #define lockdep_unpin_lock(l,c) do { (void)(l); (void)(c); } while (0) 118 119 #endif /* _LINUXKPI_LINUX_LOCKDEP_H_ */ 120