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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2018-05-23 15:26:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-05-24 22:56:15 -0400 |
| commit | aaa908ffbee18a65529b716efb346a626e81559a (patch) | |
| tree | 0ff6902780f9a964ac1b8fe8ea6a2bb7d7898cc7 /net/sched/cls_fw.c | |
| parent | 1bb58d2d3cbebeb2ee38d11e8fa86b06117f5f75 (diff) | |
| download | linux-aaa908ffbee18a65529b716efb346a626e81559a.tar.bz2 | |
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_fw.c')
| -rw-r--r-- | net/sched/cls_fw.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c index 8b207723fbc2..29eeeaf3ea44 100644 --- a/net/sched/cls_fw.c +++ b/net/sched/cls_fw.c @@ -47,10 +47,7 @@ struct fw_filter { #endif /* CONFIG_NET_CLS_IND */ struct tcf_exts exts; struct tcf_proto *tp; - union { - struct work_struct work; - struct rcu_head rcu; - }; + struct rcu_work rwork; }; static u32 fw_hash(u32 handle) @@ -134,21 +131,14 @@ static void __fw_delete_filter(struct fw_filter *f) static void fw_delete_filter_work(struct work_struct *work) { - struct fw_filter *f = container_of(work, struct fw_filter, work); - + struct fw_filter *f = container_of(to_rcu_work(work), + struct fw_filter, + rwork); rtnl_lock(); __fw_delete_filter(f); rtnl_unlock(); } -static void fw_delete_filter(struct rcu_head *head) -{ - struct fw_filter *f = container_of(head, struct fw_filter, rcu); - - INIT_WORK(&f->work, fw_delete_filter_work); - tcf_queue_work(&f->work); -} - static void fw_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack) { struct fw_head *head = rtnl_dereference(tp->root); @@ -164,7 +154,7 @@ static void fw_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack) rtnl_dereference(f->next)); tcf_unbind_filter(tp, &f->res); if (tcf_exts_get_net(&f->exts)) - call_rcu(&f->rcu, fw_delete_filter); + tcf_queue_work(&f->rwork, fw_delete_filter_work); else __fw_delete_filter(f); } @@ -193,7 +183,7 @@ static int fw_delete(struct tcf_proto *tp, void *arg, bool *last, RCU_INIT_POINTER(*fp, rtnl_dereference(f->next)); tcf_unbind_filter(tp, &f->res); tcf_exts_get_net(&f->exts); - call_rcu(&f->rcu, fw_delete_filter); + tcf_queue_work(&f->rwork, fw_delete_filter_work); ret = 0; break; } @@ -316,7 +306,7 @@ static int fw_change(struct net *net, struct sk_buff *in_skb, rcu_assign_pointer(*fp, fnew); tcf_unbind_filter(tp, &f->res); tcf_exts_get_net(&f->exts); - call_rcu(&f->rcu, fw_delete_filter); + tcf_queue_work(&f->rwork, fw_delete_filter_work); *arg = fnew; return err; |