From bf02499bae889e418cfda14a0bab9f65c72410bb Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Sat, 18 Oct 2014 18:33:39 +0200 Subject: [PATCH] rculist: allow reverse RCU traversal Signed-off-by: Mathieu Desnoyers --- urcu/rculist.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/urcu/rculist.h b/urcu/rculist.h index 1fd2df3..9a01dad 100644 --- a/urcu/rculist.h +++ b/urcu/rculist.h @@ -35,8 +35,8 @@ void cds_list_add_rcu(struct cds_list_head *newp, struct cds_list_head *head) { newp->next = head->next; newp->prev = head; - head->next->prev = newp; - rcu_assign_pointer(head->next, newp); + rcu_assign_pointer(head->next->prev, newp); + CMM_STORE_SHARED(head->next, newp); } /* Add new element at the tail of the list. */ @@ -47,7 +47,7 @@ void cds_list_add_tail_rcu(struct cds_list_head *newp, newp->next = head; newp->prev = head->prev; rcu_assign_pointer(head->prev->next, newp); - head->prev = newp; + CMM_STORE_SHARED(head->prev, newp); } /* @@ -61,14 +61,14 @@ void cds_list_replace_rcu(struct cds_list_head *old, struct cds_list_head *_new) _new->next = old->next; _new->prev = old->prev; rcu_assign_pointer(_new->prev->next, _new); - _new->next->prev = _new; + CMM_STORE_SHARED(_new->next->prev, _new); } /* Remove element from list. */ static inline void cds_list_del_rcu(struct cds_list_head *elem) { - elem->next->prev = elem->prev; + CMM_STORE_SHARED(elem->next->prev, elem->prev); CMM_STORE_SHARED(elem->prev->next, elem->next); } -- 2.34.1