1 /* Public domain. */ 2 3 #ifndef LINUX_RCUPDATE_H 4 #define LINUX_RCUPDATE_H 5 6 #include <linux/cpumask.h> 7 8 struct rcu_head { 9 }; 10 11 #define __rcu 12 #define rcu_dereference(p) (p) 13 #define rcu_dereference_raw(p) (p) 14 #define rcu_dereference_protected(p, c) (p) 15 #define rcu_access_pointer(p) (p) 16 #define RCU_INIT_POINTER(p, v) do { (p) = (v); } while(0) 17 #define rcu_assign_pointer(p, v) do { (p) = (v); } while(0) 18 #define rcu_read_lock() 19 #define rcu_read_unlock() 20 #define rcu_pointer_handoff(p) (p) 21 22 #define kfree_rcu(objp, name) do { free((void *)objp, M_DRM, 0); } while(0) 23 24 #define rcu_barrier() __asm __volatile("" : : : "memory") 25 26 typedef void (*rcu_callback_t)(struct rcu_head *head); 27 28 static inline void 29 call_rcu(struct rcu_head *head, void (*fn)(struct rcu_head *)) 30 { 31 fn(head); 32 } 33 34 #define synchronize_rcu() 35 36 #endif 37