Loading include/linux/list.h +30 −0 Original line number Original line Diff line number Diff line Loading @@ -634,6 +634,21 @@ static inline void hlist_add_after(struct hlist_node *n, next->next->pprev = &next->next; next->next->pprev = &next->next; } } /** * hlist_add_before_rcu - adds the specified element to the specified hlist * before the specified node while permitting racing traversals. * @n: the new element to add to the hash list. * @next: the existing element to add the new element before. * * The caller must take whatever precautions are necessary * (such as holding appropriate locks) to avoid racing * with another list-mutation primitive, such as hlist_add_head_rcu() * or hlist_del_rcu(), running on this same list. * However, it is perfectly legal to run concurrently with * the _rcu list-traversal primitives, such as * hlist_for_each_rcu(), used to prevent memory-consistency * problems on Alpha CPUs. */ static inline void hlist_add_before_rcu(struct hlist_node *n, static inline void hlist_add_before_rcu(struct hlist_node *n, struct hlist_node *next) struct hlist_node *next) { { Loading @@ -644,6 +659,21 @@ static inline void hlist_add_before_rcu(struct hlist_node *n, *(n->pprev) = n; *(n->pprev) = n; } } /** * hlist_add_after_rcu - adds the specified element to the specified hlist * after the specified node while permitting racing traversals. * @prev: the existing element to add the new element after. * @n: the new element to add to the hash list. * * The caller must take whatever precautions are necessary * (such as holding appropriate locks) to avoid racing * with another list-mutation primitive, such as hlist_add_head_rcu() * or hlist_del_rcu(), running on this same list. * However, it is perfectly legal to run concurrently with * the _rcu list-traversal primitives, such as * hlist_for_each_rcu(), used to prevent memory-consistency * problems on Alpha CPUs. */ static inline void hlist_add_after_rcu(struct hlist_node *prev, static inline void hlist_add_after_rcu(struct hlist_node *prev, struct hlist_node *n) struct hlist_node *n) { { Loading Loading
include/linux/list.h +30 −0 Original line number Original line Diff line number Diff line Loading @@ -634,6 +634,21 @@ static inline void hlist_add_after(struct hlist_node *n, next->next->pprev = &next->next; next->next->pprev = &next->next; } } /** * hlist_add_before_rcu - adds the specified element to the specified hlist * before the specified node while permitting racing traversals. * @n: the new element to add to the hash list. * @next: the existing element to add the new element before. * * The caller must take whatever precautions are necessary * (such as holding appropriate locks) to avoid racing * with another list-mutation primitive, such as hlist_add_head_rcu() * or hlist_del_rcu(), running on this same list. * However, it is perfectly legal to run concurrently with * the _rcu list-traversal primitives, such as * hlist_for_each_rcu(), used to prevent memory-consistency * problems on Alpha CPUs. */ static inline void hlist_add_before_rcu(struct hlist_node *n, static inline void hlist_add_before_rcu(struct hlist_node *n, struct hlist_node *next) struct hlist_node *next) { { Loading @@ -644,6 +659,21 @@ static inline void hlist_add_before_rcu(struct hlist_node *n, *(n->pprev) = n; *(n->pprev) = n; } } /** * hlist_add_after_rcu - adds the specified element to the specified hlist * after the specified node while permitting racing traversals. * @prev: the existing element to add the new element after. * @n: the new element to add to the hash list. * * The caller must take whatever precautions are necessary * (such as holding appropriate locks) to avoid racing * with another list-mutation primitive, such as hlist_add_head_rcu() * or hlist_del_rcu(), running on this same list. * However, it is perfectly legal to run concurrently with * the _rcu list-traversal primitives, such as * hlist_for_each_rcu(), used to prevent memory-consistency * problems on Alpha CPUs. */ static inline void hlist_add_after_rcu(struct hlist_node *prev, static inline void hlist_add_after_rcu(struct hlist_node *prev, struct hlist_node *n) struct hlist_node *n) { { Loading
David S. Miller <davem@davemloft.net>David S. Miller <davem@davemloft.net>