SKB_HEAD_IS_LOCKED(9) Linux Networking SKB_HEAD_IS_LOCKED(9)
NAME
skb_head_is_locked - Determine if the skb->head is locked down
SYNOPSIS
bool skb_head_is_locked(const struct sk_buff * skb);
ARGUMENTS
skb
skb to check
DESCRIPTION
The head on skbs build around a head frag can be removed if they are not cloned. This function returns true if the skb head is locked down
due to either being allocated via kmalloc, or by being a clone with multiple references to the head.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SKB_HEAD_IS_LOCKED(9)
