diff options
| author | WANG Cong <xiyou.wangcong@gmail.com> | 2015-03-04 20:11:44 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-05 21:30:44 -0500 |
| commit | 33f8b9ecdb15bc8a3c6be0072a7e0f7a345856f1 (patch) | |
| tree | 27feaf327332c68f731ac474bef6554d947946c9 /net/sched/cls_fw.c | |
| parent | a05c2d112c0c4a768bfad47c33f28a15f8cf1193 (diff) | |
net_sched: move tp->root allocation into fw_init()
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.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 | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c index a5269f76004c..9d9aa3e82b10 100644 --- a/net/sched/cls_fw.c +++ b/net/sched/cls_fw.c @@ -33,6 +33,7 @@ struct fw_head { u32 mask; + bool mask_set; struct fw_filter __rcu *ht[HTSIZE]; struct rcu_head rcu; }; @@ -113,6 +114,14 @@ static unsigned long fw_get(struct tcf_proto *tp, u32 handle) static int fw_init(struct tcf_proto *tp) { + struct fw_head *head; + + head = kzalloc(sizeof(struct fw_head), GFP_KERNEL); + if (head == NULL) + return -ENOBUFS; + + head->mask_set = false; + rcu_assign_pointer(tp->root, head); return 0; } @@ -286,17 +295,11 @@ static int fw_change(struct net *net, struct sk_buff *in_skb, if (!handle) return -EINVAL; - if (head == NULL) { - u32 mask = 0xFFFFFFFF; + if (!head->mask_set) { + head->mask = 0xFFFFFFFF; if (tb[TCA_FW_MASK]) - mask = nla_get_u32(tb[TCA_FW_MASK]); - - head = kzalloc(sizeof(struct fw_head), GFP_KERNEL); - if (head == NULL) - return -ENOBUFS; - head->mask = mask; - - rcu_assign_pointer(tp->root, head); + head->mask = nla_get_u32(tb[TCA_FW_MASK]); + head->mask_set = true; } f = kzalloc(sizeof(struct fw_filter), GFP_KERNEL); |