NAME
sk_alloc - All socket objects are allocated here
SYNOPSIS
struct sock * sk_alloc (int family, gfp_t priority,
struct proto * prot, int zero_it);
ARGUMENTS
family protocol family
priority
for allocation (GFP_KERNEL, GFP_ATOMIC, etc)
prot struct proto associated with this new sock instance
zero_it
if we should zero the newly allocated sock