32 struct anon_vma {  struct
33 	struct anon_vma *root;		/* Root of this anon_vma tree */  argument
36 	 * The refcount is taken on an anon_vma when there is no  argument
48 	 * This counter is used for making decision about reusing anon_vma  argument
52 	/* Count of VMAs whose ->anon_vma pointer points to this object. */  argument
55 	struct anon_vma *parent;	/* Parent of this anon_vma */  argument
71  * The copy-on-write semantics of fork mean that an anon_vma  argument
85 	struct anon_vma *anon_vma;  member
107 static inline void get_anon_vma(struct anon_vma *anon_vma)  in get_anon_vma()
114 static inline void put_anon_vma(struct anon_vma *anon_vma)  in put_anon_vma()
120 static inline void anon_vma_lock_write(struct anon_vma *anon_vma)  in anon_vma_lock_write()
125 static inline int anon_vma_trylock_write(struct anon_vma *anon_vma)  in anon_vma_trylock_write()
130 static inline void anon_vma_unlock_write(struct anon_vma *anon_vma)  in anon_vma_unlock_write()
135 static inline void anon_vma_lock_read(struct anon_vma *anon_vma)  in anon_vma_lock_read()
140 static inline int anon_vma_trylock_read(struct anon_vma *anon_vma)  in anon_vma_trylock_read()
145 static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)  in anon_vma_unlock_read()