Differential D20719 Diff 58871 head/sys/compat/linuxkpi/common/include/linux/rculist.h

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head/sys/compat/linuxkpi/common/include/linux/rculist.h

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	*/			*/

	#ifndef _LINUX_RCULIST_H_			#ifndef _LINUX_RCULIST_H_
	#define _LINUX_RCULIST_H_			#define _LINUX_RCULIST_H_

	#include <linux/list.h>			#include <linux/list.h>
	#include <linux/rcupdate.h>			#include <linux/rcupdate.h>

				#define list_entry_rcu(ptr, type, member) \
				container_of(READ_ONCE(ptr), type, member)

				#define list_next_rcu(head) (((struct list_head *)(&(head)->next)))

				#define list_for_each_entry_rcu(pos, head, member) \
				for (pos = list_entry_rcu((head)->next, typeof(*(pos)), member); \
				&(pos)->member != (head); \
				pos = list_entry_rcu((pos)->member.next, typeof(*(pos)), member))

				static inline void
				list_add_rcu(struct list_head new, struct list_head prev)
				{
				new->next = prev->next;
				new->prev = prev;
				rcu_assign_pointer(list_next_rcu(prev), new);
				prev->prev = new;
				}

	#define hlist_first_rcu(head) (((struct hlist_node *)(&(head)->first)))			#define hlist_first_rcu(head) (((struct hlist_node *)(&(head)->first)))
	#define hlist_next_rcu(node) (((struct hlist_node *)(&(node)->next)))			#define hlist_next_rcu(node) (((struct hlist_node *)(&(node)->next)))
	#define hlist_pprev_rcu(node) (((struct hlist_node *)((node)->pprev)))			#define hlist_pprev_rcu(node) (((struct hlist_node *)((node)->pprev)))

	static inline void			static inline void
	hlist_add_behind_rcu(struct hlist_node n, struct hlist_node prev)			hlist_add_behind_rcu(struct hlist_node n, struct hlist_node prev)
	{			{
	n->next = prev->next;			n->next = prev->next;
	n->pprev = &prev->next;			n->pprev = &prev->next;
	rcu_assign_pointer(hlist_next_rcu(prev), n);			rcu_assign_pointer(hlist_next_rcu(prev), n);
	if (n->next)			if (n->next)
	n->next->pprev = &n->next;			n->next->pprev = &n->next;
	}			}

	#define hlist_for_each_entry_rcu(pos, head, member) \			#define hlist_for_each_entry_rcu(pos, head, member) \
	hlist_for_each_entry(pos, head, member)			for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\
				typeof(*(pos)), member); \
				(pos); \
				pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu( \
				&(pos)->member)), typeof(*(pos)), member))

	static inline void			static inline void
	hlist_del_rcu(struct hlist_node *n)			hlist_del_rcu(struct hlist_node *n)
	{			{
	struct hlist_node *next = n->next;			struct hlist_node *next = n->next;
	struct hlist_node **pprev = n->pprev;			struct hlist_node **pprev = n->pprev;

	WRITE_ONCE(*pprev, next);			WRITE_ONCE(*pprev, next);
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