__pskb_copy_fclone — create copy of an sk_buff with private head.
struct sk_buff * __pskb_copy_fclone ( | struct sk_buff * skb, |
int headroom, | |
gfp_t gfp_mask, | |
bool fclone) ; |
struct sk_buff * skb
buffer to copy
int headroom
headroom of new skb
gfp_t gfp_mask
allocation priority
bool fclone
if true allocate the copy of the skb from the fclone cache instead of the head cache; it is recommended to set this to true for the cases where the copy will likely be cloned
Make a copy of both an &sk_buff and part of its data, located
in header. Fragmented data remain shared. This is used when
the caller wishes to modify only header of &sk_buff and needs
private copy of the header to alter. Returns NULL
on failure
or the pointer to the buffer on success.
The returned buffer has a reference count of 1.