nf_ftp_lock 40 net/netfilter/nf_conntrack_ftp.c static DEFINE_SPINLOCK(nf_ftp_lock); nf_ftp_lock 414 net/netfilter/nf_conntrack_ftp.c spin_lock_bh(&nf_ftp_lock); nf_ftp_lock 544 net/netfilter/nf_conntrack_ftp.c spin_unlock_bh(&nf_ftp_lock);