SKB_COW_HEAD(9) Linux Networking SKB_COW_HEAD(9) NAME skb_cow_head - skb_cow but only making the head writable SYNOPSIS int skb_cow_head(struct sk_buff * skb, unsigned int headroom); ARGUMENTS skb buffer to cow headroom needed headroom DESCRIPTION This function is identical to skb_cow except that we replace the skb_cloned check by skb_header_cloned. It should be used when you only need to push on some header and do not need to modify the data. COPYRIGHT Kernel Hackers Manual 2.6. November 2013 SKB_COW_HEAD(9)[top]
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