diff options
| -rw-r--r-- | net/netlink/af_netlink.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index be5792b638aa..765921cf1194 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1202,23 +1202,21 @@ struct sock *netlink_getsockbyfilp(struct file *filp) struct sk_buff *netlink_alloc_large_skb(unsigned int size, int broadcast) { + size_t head_size = SKB_HEAD_ALIGN(size); struct sk_buff *skb; void *data; - if (size <= NLMSG_GOODSIZE || broadcast) + if (head_size <= PAGE_SIZE || broadcast) return alloc_skb(size, GFP_KERNEL); - size = SKB_DATA_ALIGN(size) + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); - - data = vmalloc(size); - if (data == NULL) + data = kvmalloc(head_size, GFP_KERNEL); + if (!data) return NULL; - skb = __build_skb(data, size); - if (skb == NULL) - vfree(data); - else + skb = __build_skb(data, head_size); + if (!skb) + kvfree(data); + else if (is_vmalloc_addr(data)) skb->destructor = netlink_skb_destructor; return skb; |