X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=urcu%2Frculist.h;h=e67503d9431d5da5d68d8f0a888613b1cebe2395;hb=c01cfe733a13947b5d8ba49c8529b1f691558c9d;hp=575e1fb0d8f4f836166695f80b732898d8c0265a;hpb=a00718e7e5df2c582de11fbd6be3d9420ad6c0e3;p=userspace-rcu.git diff --git a/urcu/rculist.h b/urcu/rculist.h index 575e1fb..e67503d 100644 --- a/urcu/rculist.h +++ b/urcu/rculist.h @@ -33,11 +33,12 @@ */ static inline void cds_list_add_rcu(struct cds_list_head *newp, struct cds_list_head *head) { - newp->next = head->next; + struct cds_list_head *first = head->next; + + newp->next = first; newp->prev = head; - cmm_smp_wmb(); - head->next->prev = newp; - head->next = newp; + rcu_assign_pointer(head->next, newp); + first->prev = newp; } /* replace an old entry atomically. @@ -54,7 +55,7 @@ static inline void cds_list_replace_rcu(struct cds_list_head *old, struct cds_li static inline void cds_list_del_rcu(struct cds_list_head *elem) { elem->next->prev = elem->prev; - elem->prev->next = elem->next; + CMM_STORE_SHARED(elem->prev->next, elem->next); } /* @@ -71,8 +72,8 @@ static inline void cds_list_del_rcu(struct cds_list_head *elem) /* Iterate through elements of the list. */ #define cds_list_for_each_entry_rcu(pos, head, member) \ - for (pos = cds_list_entry(rcu_dereference((head)->next), typeof(*pos), member); \ + for (pos = cds_list_entry(rcu_dereference((head)->next), __typeof__(*pos), member); \ &pos->member != (head); \ - pos = cds_list_entry(rcu_dereference(pos->member.next), typeof(*pos), member)) + pos = cds_list_entry(rcu_dereference(pos->member.next), __typeof__(*pos), member)) #endif /* _URCU_RCULIST_H */