AcoSail/kernel_optimize_test
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kernel_optimize_test/net/ipv6
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Eric Dumazet 415787d779 ipv6: frags: fix a lockdep false positive 
lockdep does not know that the locks used by IPv4 defrag
and IPv6 reassembly units are of different classes.

It complains because of following chains :

1) sch_direct_xmit()        (lock txq->_xmit_lock)
    dev_hard_start_xmit()
     xmit_one()
      dev_queue_xmit_nit()
       packet_rcv_fanout()
        ip_check_defrag()
         ip_defrag()
          spin_lock()     (lock frag queue spinlock)

2) ip6_input_finish()
    ipv6_frag_rcv()       (lock frag queue spinlock)
     ip6_frag_queue()
      icmpv6_param_prob() (lock txq->_xmit_lock at some point)

We could add lockdep annotations, but we also can make sure IPv6
calls icmpv6_param_prob() only after the release of the frag queue spinlock,
since this naturally makes frag queue spinlock a leaf in lock hierarchy.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-18 23:19:39 -04:00
..
ila net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
netfilter inet: frags: fix ip6frag_low_thresh boundary 2018-04-04 12:04:59 -04:00
addrconf_core.c
addrconf.c net/ipv6: Flip FIB entries to fib6_info 2018-04-17 23:41:18 -04:00
addrlabel.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
af_inet6.c net/ipv6: Make __inet6_bind static 2018-04-17 13:19:22 -04:00
ah6.c
anycast.c net/ipv6: Flip FIB entries to fib6_info 2018-04-17 23:41:18 -04:00
calipso.c
datagram.c ipv6: add a wrapper for ip6_dst_store() with flowi6 checks 2018-04-04 11:31:57 -04:00
esp6_offload.c esp: check the NETIF_F_HW_ESP_TX_CSUM bit before segmenting 2018-02-27 10:46:01 +01:00
esp6.c
exthdrs_core.c inet: whitespace cleanup 2018-02-28 11:43:28 -05:00
exthdrs_offload.c
exthdrs.c ipv6: Count interface receive statistics on the ingress netdev 2018-04-17 13:39:51 -04:00
fib6_notifier.c
fib6_rules.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
fou6.c
icmp.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
inet6_connection_sock.c
inet6_hashtables.c
ip6_checksum.c
ip6_fib.c net/ipv6: Remove unused code and variables for rt6_info 2018-04-17 23:41:18 -04:00
ip6_flowlabel.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ip6_gre.c ip6_gre: better validate user provided tunnel names 2018-04-05 15:16:15 -04:00
ip6_icmp.c
ip6_input.c ipv6: Count interface receive statistics on the ingress netdev 2018-04-17 13:39:51 -04:00
ip6_offload.c
ip6_offload.h
ip6_output.c net/ipv6: separate handling of FIB entries from dst based routes 2018-04-17 23:41:17 -04:00
ip6_tunnel.c ip6_tunnel: better validate user provided tunnel names 2018-04-05 15:16:15 -04:00
ip6_udp_tunnel.c
ip6_vti.c vti6: better validate user provided tunnel names 2018-04-05 15:16:15 -04:00
ip6mr.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ipcomp6.c
ipv6_sockglue.c inet: whitespace cleanup 2018-02-28 11:43:28 -05:00
Kconfig ipmr,ipmr6: Define a uniform vif_device 2018-03-01 13:13:23 -05:00
Makefile
mcast_snoop.c
mcast.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
mip6.c
ndisc.c net/ipv6: Flip FIB entries to fib6_info 2018-04-17 23:41:18 -04:00
netfilter.c netfilter: use skb_to_full_sk in ip6_route_me_harder 2018-02-25 20:51:13 +01:00
output_core.c
ping.c ipv6: allow to cache dst for a connected sk in ip6_sk_dst_lookup_flow() 2018-04-04 11:31:57 -04:00
proc.c inet: frags: break the 2GB limit for frags storage 2018-03-31 23:25:39 -04:00
protocol.c
raw.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
reassembly.c ipv6: frags: fix a lockdep false positive 2018-04-18 23:19:39 -04:00
route.c net/ipv6: Remove unused code and variables for rt6_info 2018-04-17 23:41:18 -04:00
seg6_hmac.c
seg6_iptunnel.c ipv6: sr: fix seg6 encap performances with TSO enabled 2018-03-30 14:14:33 -04:00
seg6_local.c net/ipv6: Pass skb to route lookup 2018-03-04 13:04:22 -05:00
seg6.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
sit.c ipv6: sit: better validate user provided tunnel names 2018-04-05 15:16:15 -04:00
syncookies.c net/ipv4: disable SMC TCP option with SYN Cookies 2018-03-25 20:53:54 -04:00
sysctl_net_ipv6.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
tcp_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2018-03-31 23:33:04 -04:00
tcpv6_offload.c
tunnel6.c
udp_impl.h
udp_offload.c
udp.c ipv6: udp: set dst cache for a connected sk if current not valid 2018-04-04 11:31:57 -04:00
udplite.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto 2018-03-07 10:54:29 +01:00
xfrm6_output.c net: xfrm: use skb_gso_validate_network_len() to check gso sizes 2018-03-04 17:49:17 -05:00
xfrm6_policy.c net/ipv6: Remove unused code and variables for rt6_info 2018-04-17 23:41:18 -04:00
xfrm6_protocol.c
xfrm6_state.c inet: whitespace cleanup 2018-02-28 11:43:28 -05:00
xfrm6_tunnel.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00