skb_share_check9
Check if buffer is shared and if so clone it
Usage
struct sk_buff * skb_share_check(struct sk_buff * skb, gfp_t pri);
Arguments
skb
buffer to check
pri
priority for memory allocation
Overview
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.
Releases
6 releases since Debian 4.0 (Etch); the text changed 5 times.