skb_cow_head(9) - phpMan
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 4.8. January 2017 SKB_COW_HEAD(9)
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