SKB_SHARE_CHECK(9) Linux Networking SKB_SHARE_CHECK(9) NAME skb_share_check - check if buffer is shared and if so clone it SYNOPSIS struct sk_buff * skb_share_check(struct sk_buff * skb, gfp_t pri); ARGUMENTS skb buffer to check pri priority for memory allocation DESCRIPTION If the buffer is shared the buffer is cloned and the old copy drops a reference. A new clone with a single reference is returned. If the buffer is not shared the original buffer is returned. When being called from interrupt status or with spinlocks held pri must be GFP_ATOMIC. NULL is returned on a memory allocation failure. COPYRIGHT Kernel Hackers Manual 2.6. November 2013 SKB_SHARE_CHECK(9)[top]
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