1. NAME▲

skb_unshare - make a copy of a shared buffer

2. SYNOPSIS ▲

struct sk_buff * skb_unshare(struct sk_buff *  skb , gfp_t  pri );

3. ARGUMENTS ▲

skb
    buffer to check

pri
    priority for memory allocation

4. DESCRIPTION ▲

If the socket buffer is a clone then this function creates a new copy of the data, drops a reference count on the old copy and returns the new copy with the reference count at 1. If the buffer is not a clone the original buffer is returned. When called with a spinlock held or from interrupt state pri must be GFP_ATOMIC

NULL is returned on a memory allocation failure.

5. COPYRIGHT ▲