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1cfb71eeb1
linux/net
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Wei Wang 1cfb71eeb1 ipv6: take dst->__refcnt for insertion into fib6 tree 
In IPv6 routing code, struct rt6_info is created for each static route
and RTF_CACHE route and inserted into fib6 tree. In both cases, dst
ref count is not taken.
As explained in the previous patch, this leads to the need of the dst
garbage collector.

This patch holds ref count of dst before inserting the route into fib6
tree and properly releases the dst when deleting it from the fib6 tree
as a preparation in order to fully get rid of dst gc later.

Also, correct fib6_age() logic to check dst->__refcnt to be 1 to indicate
no user is referencing the dst.

And remove dst_hold() in vrf_rt6_create() as ip6_dst_alloc() already puts
dst->__refcnt to 1.

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-17 22:54:00 -04:00
..
6lowpan 6lowpan: Don't set IFF_NO_QUEUE 2017-04-12 22:02:40 +02:00
9p xen: fixes for 4.12 rc2 2017-05-19 15:06:48 -07:00
802 networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
8021q networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
appletalk networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
atm networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
ax25 networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
batman-adv networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
bluetooth networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
bpf bpf: Align packet data properly in program testing framework. 2017-05-02 11:46:28 -04:00
bridge networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 11:59:32 -04:00
can networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
ceph libceph: cleanup old messages according to reconnect seq 2017-05-24 18:10:51 +02:00
core net: introduce a new function dst_dev_put() 2017-06-17 22:53:59 -04:00
dcb dcb: enforce minimum length on IEEE_APPS attribute 2017-05-21 13:42:33 -04:00
dccp networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
decnet decnet: always not take dst->__refcnt when inserting dst into hash table 2017-06-16 15:00:00 -04:00
dns_resolver
dsa net: dsa: add cross-chip multicast support 2017-06-16 15:21:14 -04:00
ethernet networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
hsr hsr: fix incorrect warning 2017-06-12 15:21:20 -04:00
ieee802154 networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
ife
ipv4 ipv4: mark DST_NOGC and remove the operation of dst_free() 2017-06-17 22:54:00 -04:00
ipv6 ipv6: take dst->__refcnt for insertion into fib6 tree 2017-06-17 22:54:00 -04:00
ipx ipx: call ipxitf_put() in ioctl error path 2017-05-02 15:34:53 -04:00
irda networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
iucv networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
kcm net: socket: mark socket protocol handler structs as const 2017-05-16 11:54:07 -04:00
key networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
l2tp l2tp: cast l2tp traffic counter to unsigned 2017-06-10 16:14:27 -04:00
l3mdev
lapb
llc net: llc: add lock_sock in llc_ui_bind to avoid a race condition 2017-05-26 14:20:29 -04:00
mac80211 networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
mac802154 net: Fix inconsistent teardown and release of private netdev state. 2017-06-07 15:53:24 -04:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-06 22:20:08 -04:00
ncsi networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
netfilter networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
netlabel netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
netlink networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
netrom
nfc networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
openvswitch networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
packet net/packet: remove unneeded declaraion of tpacket_snd(). 2017-06-10 16:15:25 -04:00
phonet net: Fix inconsistent teardown and release of private netdev state. 2017-06-07 15:53:24 -04:00
psample networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
qrtr networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
rds rds: tcp: Set linger when rejecting an incoming conn in rds_tcp_accept_one 2017-06-16 12:45:15 -04:00
rfkill net: rfkill: gpio: Switch to devm_acpi_dev_add_driver_gpios() 2017-06-13 11:07:51 +02:00
rose
rxrpc networking: convert many more places to skb_put_zero() 2017-06-16 11:48:35 -04:00
sched net: sched: act_tunnel_key: make UDP checksum configurable 2017-06-15 14:21:03 -04:00
sctp networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
smc net/smc: Add warning about remote memory exposure 2017-05-16 14:49:43 -04:00
strparser
sunrpc SUNRPC: ensure correct error is reported by xs_tcp_setup_socket() 2017-05-31 12:26:44 -04:00
switchdev net: switchdev: Change notifier chain to be atomic 2017-06-08 14:16:24 -04:00
tipc net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse 2017-06-10 18:20:38 -04:00
tls tls: Depend upon INET not plain NET. 2017-06-16 11:28:49 -04:00
unix af_unix: Add sockaddr length checks before accessing sa_family in bind and connect handlers 2017-06-09 10:10:24 -04:00
vmw_vsock networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
wimax
wireless networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
x25 networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
xfrm xfrm: fix state migration copy replay sequence numbers 2017-05-19 12:49:13 +02:00
compat.c
Kconfig tls: kernel TLS support 2017-06-15 12:12:40 -04:00
Makefile tls: kernel TLS support 2017-06-15 12:12:40 -04:00
socket.c net: socket: fix a typo in sockfd_lookup(). 2017-05-22 12:14:04 -04:00
sysctl_net.c sysctl: Remove dead register_sysctl_root 2017-04-16 23:42:49 -05:00