diff options
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 47 |
1 files changed, 23 insertions, 24 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index bb47314..0e50171 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -562,6 +562,11 @@ extern void kfree_skb(struct sk_buff *skb); extern void consume_skb(struct sk_buff *skb); extern void __kfree_skb(struct sk_buff *skb); extern struct kmem_cache *skbuff_head_cache; + +extern void kfree_skb_partial(struct sk_buff *skb, bool head_stolen); +extern bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from, + bool *fragstolen, int *delta_truesize); + extern struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int fclone, int node); extern struct sk_buff *build_skb(void *data, unsigned int frag_size); @@ -1680,31 +1685,11 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) kfree_skb(skb); } -/** - * __dev_alloc_skb - allocate an skbuff for receiving - * @length: length to allocate - * @gfp_mask: get_free_pages mask, passed to alloc_skb - * - * Allocate a new &sk_buff and assign it a usage count of one. The - * buffer has unspecified headroom built in. Users should allocate - * the headroom they think they need without accounting for the - * built in space. The built in space is used for optimisations. - * - * %NULL is returned if there is no free memory. - */ -static inline struct sk_buff *__dev_alloc_skb(unsigned int length, - gfp_t gfp_mask) -{ - struct sk_buff *skb = alloc_skb(length + NET_SKB_PAD, gfp_mask); - if (likely(skb)) - skb_reserve(skb, NET_SKB_PAD); - return skb; -} - -extern struct sk_buff *dev_alloc_skb(unsigned int length); +extern void *netdev_alloc_frag(unsigned int fragsz); extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev, - unsigned int length, gfp_t gfp_mask); + unsigned int length, + gfp_t gfp_mask); /** * netdev_alloc_skb - allocate an skbuff for rx on a specific device @@ -1720,11 +1705,25 @@ extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev, * allocates memory it can be called from an interrupt. */ static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev, - unsigned int length) + unsigned int length) { return __netdev_alloc_skb(dev, length, GFP_ATOMIC); } +/* legacy helper around __netdev_alloc_skb() */ +static inline struct sk_buff *__dev_alloc_skb(unsigned int length, + gfp_t gfp_mask) +{ + return __netdev_alloc_skb(NULL, length, gfp_mask); +} + +/* legacy helper around netdev_alloc_skb() */ +static inline struct sk_buff *dev_alloc_skb(unsigned int length) +{ + return netdev_alloc_skb(NULL, length); +} + + static inline struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev, unsigned int length, gfp_t gfp) { |
