$grep -r -l tcp_max * sysctl_net_ipv4.c tcp.c tcp_cong.c tcp_input.c tcp_output.c $ $grep -r -L tcp_max * af_inet.c ah4.c arp.c cipso_ipv4.c datagram.c devinet.c esp4.c fib_frontend.c fib_hash.c fib_lookup.h fib_rules.c fib_semantics.c fib_trie.c icmp.c igmp.c inet_connection_sock.c inet_diag.c inet_fragment.c inet_hashtables.c inet_lro.c inetpeer.c inet_timewait_sock.c ipcomp.c ipconfig.c ip_forward.c ip_fragment.c ip_gre.c ip_input.c ipip.c ipmr.c ip_options.c ip_output.c ip_sockglue.c Kconfig Makefile netfilter/ipt_ECN.c netfilter/nf_nat_amanda.c netfilter/nf_conntrack_l3proto_ipv4.c netfilter/nf_nat_proto_dccp.c …
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