SYNOPSIS

struct sk_buff * __pskb_copy(struct sk_buff * skb, int headroom, gfp_t gfp_mask);

ARGUMENTS

skb

buffer to copy

headroom

headroom of new skb

gfp_mask

allocation priority

DESCRIPTION

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.

COPYRIGHT