linux_dsm_epyc7002/net/ipv6
Peter Oskolkov 30bfd93062 net/ipv6: do not copy dst flags on rt init
DST_NOCOUNT in dst_entry::flags tracks whether the entry counts
toward route cache size (net->ipv6.sysctl.ip6_rt_max_size).

If the flag is NOT set, dst_ops::pcpuc_entries counter is incremented
in dist_init() and decremented in dst_destroy().

This flag is tied to allocation/deallocation of dst_entry and
should not be copied from another dst/route. Otherwise it can happen
that dst_ops::pcpuc_entries counter grows until no new routes can
be allocated because the counter reached ip6_rt_max_size due to
DST_NOCOUNT not set and thus no counter decrements on gc-ed routes.

Fixes: 3b6761d18b ("net/ipv6: Move dst flags to booleans in fib entries")
Cc: David Ahern <dsahern@gmail.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: Peter Oskolkov <posk@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-17 19:42:14 -07:00
..
ila
netfilter ip: frags: fix crash in ip_do_fragment() 2018-09-09 14:50:56 -07:00
addrconf_core.c
addrconf.c addrconf: reduce unnecessary atomic allocations 2018-08-22 21:42:07 -07:00
addrlabel.c
af_inet6.c ipv6: fix cleanup ordering for pingv6 registration 2018-08-29 19:28:55 -07:00
ah6.c
anycast.c
calipso.c
datagram.c net: add helpers checking if socket can be bound to nonlocal address 2018-08-01 09:50:04 -07:00
esp6_offload.c
esp6.c esp6: fix memleak on error path in esp6_input 2018-06-27 17:32:11 +02:00
exthdrs_core.c
exthdrs_offload.c
exthdrs.c
fib6_notifier.c
fib6_rules.c
fou6.c
icmp.c ipv6: Add icmp_echo_ignore_all support for ICMPv6 2018-08-13 08:42:25 -07:00
inet6_connection_sock.c
inet6_hashtables.c bpf: Enable BPF_PROG_TYPE_SK_REUSEPORT bpf prog in reuseport selection 2018-08-11 01:58:46 +02:00
ip6_checksum.c
ip6_fib.c net/ipv6: Only update MTU metric if it set 2018-09-02 14:03:54 -07:00
ip6_flowlabel.c
ip6_gre.c erspan: set erspan_ver to 1 by default when adding an erspan dev 2018-08-27 15:13:17 -07:00
ip6_icmp.c
ip6_input.c
ip6_offload.c gso_segment: Reset skb->mac_len after modifying network header 2018-09-13 12:09:32 -07:00
ip6_offload.h
ip6_output.c ipv6: fix possible use-after-free in ip6_xmit() 2018-09-17 07:56:02 -07:00
ip6_tunnel.c ip6_tunnel: respect ttl inherit for ip6tnl 2018-09-03 19:04:12 -07:00
ip6_udp_tunnel.c
ip6_vti.c vti6: remove !skb->ignore_df check from vti6_xmit() 2018-08-29 17:51:44 -07:00
ip6mr.c
ipcomp6.c
ipv6_sockglue.c
Kconfig
Makefile
mcast_snoop.c
mcast.c
mip6.c
ndisc.c
netfilter.c
output_core.c
ping.c
proc.c
protocol.c
raw.c
reassembly.c ipv6: defrag: drop non-last frags smaller than min mtu 2018-08-05 17:21:14 -07:00
route.c net/ipv6: do not copy dst flags on rt init 2018-09-17 19:42:14 -07:00
seg6_hmac.c
seg6_iptunnel.c
seg6_local.c bpf: add End.DT6 action to bpf_lwt_seg6_action helper 2018-07-31 09:22:48 +02:00
seg6.c
sit.c
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c
tcpv6_offload.c
tunnel6.c
udp_impl.h
udp_offload.c
udp.c udp6: add missing checks on edumux packet processing 2018-09-16 15:27:44 -07:00
udplite.c
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c
xfrm6_output.c
xfrm6_policy.c
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c