diff options
Diffstat (limited to 'backport/backport-include/linux/skbuff.h')
| -rw-r--r-- | backport/backport-include/linux/skbuff.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/backport/backport-include/linux/skbuff.h b/backport/backport-include/linux/skbuff.h index 7d04b542..c1b27537 100644 --- a/backport/backport-include/linux/skbuff.h +++ b/backport/backport-include/linux/skbuff.h @@ -224,6 +224,52 @@ static inline void skb_queue_splice_tail(const struct sk_buff_head *list, skb = skb->next) #endif /* < 2.6.28 */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) +/** + * __skb_alloc_pages - allocate pages for ps-rx on a skb and preserve pfmemalloc data + * @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX + * @skb: skb to set pfmemalloc on if __GFP_MEMALLOC is used + * @order: size of the allocation + * + * Allocate a new page. + * + * %NULL is returned if there is no free memory. +*/ +static inline struct page *__skb_alloc_pages(gfp_t gfp_mask, + struct sk_buff *skb, + unsigned int order) +{ + struct page *page; + + gfp_mask |= __GFP_COLD; +#if 0 + if (!(gfp_mask & __GFP_NOMEMALLOC)) + gfp_mask |= __GFP_MEMALLOC; +#endif + page = alloc_pages_node(NUMA_NO_NODE, gfp_mask, order); +#if 0 + if (skb && page && page->pfmemalloc) + skb->pfmemalloc = true; +#endif + return page; +} + +/** + * __skb_alloc_page - allocate a page for ps-rx for a given skb and preserve pfmemalloc data + * @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX + * @skb: skb to set pfmemalloc on if __GFP_MEMALLOC is used + * + * Allocate a new page. + * + * %NULL is returned if there is no free memory. + */ +static inline struct page *__skb_alloc_page(gfp_t gfp_mask, + struct sk_buff *skb) +{ + return __skb_alloc_pages(gfp_mask, skb, 0); +} +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */ + #if LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0) #ifndef NETDEV_FRAG_PAGE_MAX_ORDER #define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768) |