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| author | David S. Miller <davem@davemloft.net> | 2016-12-06 21:33:19 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-06 21:33:19 -0500 |
| commit | c63d352f053a788281eb90df0a71cd3a6b2c4040 (patch) | |
| tree | ce0c6f0993100d3d8feda1d9d487dfba4abc5bd0 /net/netlink | |
| parent | 862b3d2090ae3d8b10bb4ee9275fd932bc4d0d44 (diff) | |
| parent | bc3913a5378cd0ddefd1dfec6917cc12eb23a946 (diff) | |
| download | linux-c63d352f053a788281eb90df0a71cd3a6b2c4040.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/netlink')
| -rw-r--r-- | net/netlink/af_netlink.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 602e5ebe9db3..246f29d365c0 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -322,11 +322,13 @@ static void netlink_skb_set_owner_r(struct sk_buff *skb, struct sock *sk) sk_mem_charge(sk, skb->truesize); } -static void __netlink_sock_destruct(struct sock *sk) +static void netlink_sock_destruct(struct sock *sk) { struct netlink_sock *nlk = nlk_sk(sk); if (nlk->cb_running) { + if (nlk->cb.done) + nlk->cb.done(&nlk->cb); module_put(nlk->cb.module); kfree_skb(nlk->cb.skb); } @@ -348,21 +350,7 @@ static void netlink_sock_destruct_work(struct work_struct *work) struct netlink_sock *nlk = container_of(work, struct netlink_sock, work); - nlk->cb.done(&nlk->cb); - __netlink_sock_destruct(&nlk->sk); -} - -static void netlink_sock_destruct(struct sock *sk) -{ - struct netlink_sock *nlk = nlk_sk(sk); - - if (nlk->cb_running && nlk->cb.done) { - INIT_WORK(&nlk->work, netlink_sock_destruct_work); - schedule_work(&nlk->work); - return; - } - - __netlink_sock_destruct(sk); + sk_free(&nlk->sk); } /* This lock without WQ_FLAG_EXCLUSIVE is good on UP and it is _very_ bad on @@ -667,8 +655,18 @@ out_module: static void deferred_put_nlk_sk(struct rcu_head *head) { struct netlink_sock *nlk = container_of(head, struct netlink_sock, rcu); + struct sock *sk = &nlk->sk; + + if (!atomic_dec_and_test(&sk->sk_refcnt)) + return; + + if (nlk->cb_running && nlk->cb.done) { + INIT_WORK(&nlk->work, netlink_sock_destruct_work); + schedule_work(&nlk->work); + return; + } - sock_put(&nlk->sk); + sk_free(sk); } static int netlink_release(struct socket *sock) |