20 void __mmap_lock_do_trace_start_locking(struct mm_struct *mm, bool write);
21 void __mmap_lock_do_trace_acquire_returned(struct mm_struct *mm, bool write,
23 void __mmap_lock_do_trace_released(struct mm_struct *mm, bool write);
25 static inline void __mmap_lock_trace_start_locking(struct mm_struct *mm,  in __mmap_lock_trace_start_locking()  argument
29 		__mmap_lock_do_trace_start_locking(mm, write);  in __mmap_lock_trace_start_locking()
32 static inline void __mmap_lock_trace_acquire_returned(struct mm_struct *mm,  in __mmap_lock_trace_acquire_returned()  argument
36 		__mmap_lock_do_trace_acquire_returned(mm, write, success);  in __mmap_lock_trace_acquire_returned()
39 static inline void __mmap_lock_trace_released(struct mm_struct *mm, bool write)  in __mmap_lock_trace_released()  argument
42 		__mmap_lock_do_trace_released(mm, write);  in __mmap_lock_trace_released()
47 static inline void __mmap_lock_trace_start_locking(struct mm_struct *mm,  in __mmap_lock_trace_start_locking()  argument
52 static inline void __mmap_lock_trace_acquire_returned(struct mm_struct *mm,  in __mmap_lock_trace_acquire_returned()  argument
57 static inline void __mmap_lock_trace_released(struct mm_struct *mm, bool write)  in __mmap_lock_trace_released()  argument
63 static inline void mmap_init_lock(struct mm_struct *mm)  in mmap_init_lock()  argument
65 	init_rwsem(&mm->mmap_lock);  in mmap_init_lock()
68 static inline void mmap_write_lock(struct mm_struct *mm)  in mmap_write_lock()  argument
70 	__mmap_lock_trace_start_locking(mm, true);  in mmap_write_lock()
71 	down_write(&mm->mmap_lock);  in mmap_write_lock()
72 	__mmap_lock_trace_acquire_returned(mm, true, true);  in mmap_write_lock()
75 static inline void mmap_write_lock_nested(struct mm_struct *mm, int subclass)  in mmap_write_lock_nested()  argument
77 	__mmap_lock_trace_start_locking(mm, true);  in mmap_write_lock_nested()
78 	down_write_nested(&mm->mmap_lock, subclass);  in mmap_write_lock_nested()
79 	__mmap_lock_trace_acquire_returned(mm, true, true);  in mmap_write_lock_nested()
82 static inline int mmap_write_lock_killable(struct mm_struct *mm)  in mmap_write_lock_killable()  argument
86 	__mmap_lock_trace_start_locking(mm, true);  in mmap_write_lock_killable()
87 	ret = down_write_killable(&mm->mmap_lock);  in mmap_write_lock_killable()
88 	__mmap_lock_trace_acquire_returned(mm, true, ret == 0);  in mmap_write_lock_killable()
92 static inline bool mmap_write_trylock(struct mm_struct *mm)  in mmap_write_trylock()  argument
96 	__mmap_lock_trace_start_locking(mm, true);  in mmap_write_trylock()
97 	ret = down_write_trylock(&mm->mmap_lock) != 0;  in mmap_write_trylock()
98 	__mmap_lock_trace_acquire_returned(mm, true, ret);  in mmap_write_trylock()
102 static inline void mmap_write_unlock(struct mm_struct *mm)  in mmap_write_unlock()  argument
104 	up_write(&mm->mmap_lock);  in mmap_write_unlock()
105 	__mmap_lock_trace_released(mm, true);  in mmap_write_unlock()
108 static inline void mmap_write_downgrade(struct mm_struct *mm)  in mmap_write_downgrade()  argument
110 	downgrade_write(&mm->mmap_lock);  in mmap_write_downgrade()
111 	__mmap_lock_trace_acquire_returned(mm, false, true);  in mmap_write_downgrade()
114 static inline void mmap_read_lock(struct mm_struct *mm)  in mmap_read_lock()  argument
116 	__mmap_lock_trace_start_locking(mm, false);  in mmap_read_lock()
117 	down_read(&mm->mmap_lock);  in mmap_read_lock()
118 	__mmap_lock_trace_acquire_returned(mm, false, true);  in mmap_read_lock()
121 static inline int mmap_read_lock_killable(struct mm_struct *mm)  in mmap_read_lock_killable()  argument
125 	__mmap_lock_trace_start_locking(mm, false);  in mmap_read_lock_killable()
126 	ret = down_read_killable(&mm->mmap_lock);  in mmap_read_lock_killable()
127 	__mmap_lock_trace_acquire_returned(mm, false, ret == 0);  in mmap_read_lock_killable()
131 static inline bool mmap_read_trylock(struct mm_struct *mm)  in mmap_read_trylock()  argument
135 	__mmap_lock_trace_start_locking(mm, false);  in mmap_read_trylock()
136 	ret = down_read_trylock(&mm->mmap_lock) != 0;  in mmap_read_trylock()
137 	__mmap_lock_trace_acquire_returned(mm, false, ret);  in mmap_read_trylock()
141 static inline void mmap_read_unlock(struct mm_struct *mm)  in mmap_read_unlock()  argument
143 	up_read(&mm->mmap_lock);  in mmap_read_unlock()
144 	__mmap_lock_trace_released(mm, false);  in mmap_read_unlock()
147 static inline bool mmap_read_trylock_non_owner(struct mm_struct *mm)  in mmap_read_trylock_non_owner()  argument
149 	if (mmap_read_trylock(mm)) {  in mmap_read_trylock_non_owner()
150 		rwsem_release(&mm->mmap_lock.dep_map, _RET_IP_);  in mmap_read_trylock_non_owner()
156 static inline void mmap_read_unlock_non_owner(struct mm_struct *mm)  in mmap_read_unlock_non_owner()  argument
158 	up_read_non_owner(&mm->mmap_lock);  in mmap_read_unlock_non_owner()
159 	__mmap_lock_trace_released(mm, false);  in mmap_read_unlock_non_owner()
162 static inline void mmap_assert_locked(struct mm_struct *mm)  in mmap_assert_locked()  argument
164 	lockdep_assert_held(&mm->mmap_lock);  in mmap_assert_locked()
165 	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);  in mmap_assert_locked()
168 static inline void mmap_assert_write_locked(struct mm_struct *mm)  in mmap_assert_write_locked()  argument
170 	lockdep_assert_held_write(&mm->mmap_lock);  in mmap_assert_write_locked()
171 	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);  in mmap_assert_write_locked()
174 static inline int mmap_lock_is_contended(struct mm_struct *mm)  in mmap_lock_is_contended()  argument
176 	return rwsem_is_contended(&mm->mmap_lock);  in mmap_lock_is_contended()