diff options
| author | David S. Miller <davem@davemloft.net> | 2010-06-06 17:42:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-06 17:42:02 -0700 |
| commit | eedc765ca4b19a41cf0b921a492ac08d640060d1 (patch) | |
| tree | 95c566c6238cc953e1e336115d2daafe8bcb388f /net/core/skbuff.c | |
| parent | e59d44df46edaafb6b637e98d046775524b31104 (diff) | |
| parent | 024a07bacf8287a6ddfa83e9d5b951c5e8b4070e (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/sfc/net_driver.h
drivers/net/sfc/siena.c
Diffstat (limited to 'net/core/skbuff.c')
| -rw-r--r-- | net/core/skbuff.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 4e7ac09c281..9f07e749d7b 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2965,6 +2965,34 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer) } EXPORT_SYMBOL_GPL(skb_cow_data); +static void sock_rmem_free(struct sk_buff *skb) +{ + struct sock *sk = skb->sk; + + atomic_sub(skb->truesize, &sk->sk_rmem_alloc); +} + +/* + * Note: We dont mem charge error packets (no sk_forward_alloc changes) + */ +int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb) +{ + if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= + (unsigned)sk->sk_rcvbuf) + return -ENOMEM; + + skb_orphan(skb); + skb->sk = sk; + skb->destructor = sock_rmem_free; + atomic_add(skb->truesize, &sk->sk_rmem_alloc); + + skb_queue_tail(&sk->sk_error_queue, skb); + if (!sock_flag(sk, SOCK_DEAD)) + sk->sk_data_ready(sk, skb->len); + return 0; +} +EXPORT_SYMBOL(sock_queue_err_skb); + void skb_tstamp_tx(struct sk_buff *orig_skb, struct skb_shared_hwtstamps *hwtstamps) { @@ -2997,9 +3025,7 @@ void skb_tstamp_tx(struct sk_buff *orig_skb, serr->ee.ee_errno = ENOMSG; serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING; - bh_lock_sock(sk); err = sock_queue_err_skb(sk, skb); - bh_unlock_sock(sk); if (err) kfree_skb(skb); |