Commit 4915a0de authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

net: introduce __netdev_alloc_skb_ip_align 



RX rings should use GFP_KERNEL allocations if possible, add
__netdev_alloc_skb_ip_align() helper to ease this.

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 039f02eb

include/linux/skbuff.h

+9 −3
Original line number Diff line number Diff line
@@ -1579,16 +1579,22 @@ static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev, 
	return __netdev_alloc_skb(dev, length, GFP_ATOMIC);

}



static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,

		unsigned int length)

static inline struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,

		unsigned int length, gfp_t gfp)

{

	struct sk_buff *skb = netdev_alloc_skb(dev, length + NET_IP_ALIGN);

	struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp);



	if (NET_IP_ALIGN && skb)

		skb_reserve(skb, NET_IP_ALIGN);

	return skb;

}



static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,

		unsigned int length)

{

	return __netdev_alloc_skb_ip_align(dev, length, GFP_ATOMIC);

}



/**

 *	__netdev_alloc_page - allocate a page for ps-rx on a specific device

 *	@dev: network device to receive on