Commit 254245d2 authored by stephen hemminger's avatar stephen hemminger Committed by David S. Miller
Browse files

netdev: add netdev_continue_rcu



This adds an RCU macro for continuing search, useful for some
network devices like vlan.
Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 856540ee
......@@ -1079,6 +1079,8 @@ extern rwlock_t dev_base_lock; /* Device list lock */
list_for_each_entry_safe(d, n, &(net)->dev_base_head, dev_list)
#define for_each_netdev_continue(net, d) \
list_for_each_entry_continue(d, &(net)->dev_base_head, dev_list)
#define for_each_netdev_continue_rcu(net, d) \
list_for_each_entry_continue_rcu(d, &(net)->dev_base_head, dev_list)
#define net_device_entry(lh) list_entry(lh, struct net_device, dev_list)
static inline struct net_device *next_net_device(struct net_device *dev)
......
......@@ -261,6 +261,20 @@ static inline void list_splice_init_rcu(struct list_head *list,
prefetch((pos)->next), (pos) != (head); \
(pos) = rcu_dereference((pos)->next))
/**
* list_for_each_entry_continue_rcu - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*
* Continue to iterate over list of given type, continuing after
* the current position.
*/
#define list_for_each_entry_continue_rcu(pos, head, member) \
for (pos = list_entry_rcu(pos->member.next, typeof(*pos), member); \
prefetch(pos->member.next), &pos->member != (head); \
pos = list_entry_rcu(pos->member.next, typeof(*pos), member))
/**
* hlist_del_rcu - deletes entry from hash list without re-initialization
* @n: the element to delete from the hash list.
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment