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authorCong Wang <xiyou.wangcong@gmail.com>2018-05-23 15:26:53 -0700
committerDavid S. Miller <davem@davemloft.net>2018-05-24 22:56:15 -0400
commitaaa908ffbee18a65529b716efb346a626e81559a (patch)
tree0ff6902780f9a964ac1b8fe8ea6a2bb7d7898cc7 /net/sched/cls_matchall.c
parent1bb58d2d3cbebeb2ee38d11e8fa86b06117f5f75 (diff)
net_sched: switch to rcu_work
Commit 05f0fe6b74db ("RCU, workqueue: Implement rcu_work") introduces new API's for dispatching work in a RCU callback. Now we can just switch to the new API's for tc filters. This could get rid of a lot of code. Cc: Tejun Heo <tj@kernel.org> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_matchall.c')
-rw-r--r--net/sched/cls_matchall.c21
1 files changed, 5 insertions, 16 deletions
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 2ba721a590a7..47b207ef7762 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -21,10 +21,7 @@ struct cls_mall_head {
struct tcf_result res;
u32 handle;
u32 flags;
- union {
- struct work_struct work;
- struct rcu_head rcu;
- };
+ struct rcu_work rwork;
};
static int mall_classify(struct sk_buff *skb, const struct tcf_proto *tp,
@@ -53,22 +50,14 @@ static void __mall_destroy(struct cls_mall_head *head)
static void mall_destroy_work(struct work_struct *work)
{
- struct cls_mall_head *head = container_of(work, struct cls_mall_head,
- work);
+ struct cls_mall_head *head = container_of(to_rcu_work(work),
+ struct cls_mall_head,
+ rwork);
rtnl_lock();
__mall_destroy(head);
rtnl_unlock();
}
-static void mall_destroy_rcu(struct rcu_head *rcu)
-{
- struct cls_mall_head *head = container_of(rcu, struct cls_mall_head,
- rcu);
-
- INIT_WORK(&head->work, mall_destroy_work);
- tcf_queue_work(&head->work);
-}
-
static void mall_destroy_hw_filter(struct tcf_proto *tp,
struct cls_mall_head *head,
unsigned long cookie,
@@ -126,7 +115,7 @@ static void mall_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
mall_destroy_hw_filter(tp, head, (unsigned long) head, extack);
if (tcf_exts_get_net(&head->exts))
- call_rcu(&head->rcu, mall_destroy_rcu);
+ tcf_queue_work(&head->rwork, mall_destroy_work);
else
__mall_destroy(head);
}