diff options
Diffstat (limited to 'net/core/skbuff.c')
| -rw-r--r-- | net/core/skbuff.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 747263c49838..304602784c3b 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -643,12 +643,10 @@ fastpath: kmem_cache_free(skbuff_fclone_cache, fclones); } -static void skb_release_head_state(struct sk_buff *skb) +void skb_release_head_state(struct sk_buff *skb) { skb_dst_drop(skb); -#ifdef CONFIG_XFRM - secpath_put(skb->sp); -#endif + secpath_reset(skb); if (skb->destructor) { WARN_ON(in_irq()); skb->destructor(skb); @@ -751,6 +749,24 @@ void consume_skb(struct sk_buff *skb) } EXPORT_SYMBOL(consume_skb); +/** + * consume_stateless_skb - free an skbuff, assuming it is stateless + * @skb: buffer to free + * + * Works like consume_skb(), but this variant assumes that all the head + * states have been already dropped. + */ +void consume_stateless_skb(struct sk_buff *skb) +{ + if (!skb_unref(skb)) + return; + + trace_consume_skb(skb); + if (likely(skb->head)) + skb_release_data(skb); + kfree_skbmem(skb); +} + void __kfree_skb_flush(void) { struct napi_alloc_cache *nc = this_cpu_ptr(&napi_alloc_cache); |