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8496af50eb
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David Howells 8496af50eb rxrpc: Use RCU to access a peer's service connection tree 
Move to using RCU access to a peer's service connection tree when routing
an incoming packet.  This is done using a seqlock to trigger retrying of
the tree walk if a change happened.

Further, we no longer get a ref on the connection looked up in the
data_ready handler unless we queue the connection's work item - and then
only if the refcount > 0.


Note that I'm avoiding the use of a hash table for service connections
because each service connection is addressed by a 62-bit number
(constructed from epoch and connection ID >> 2) that would allow the client
to engage in bucket stuffing, given knowledge of the hash algorithm.
Peers, however, are hashed as the network address is less controllable by
the client.  The total number of peers will also be limited in a future
commit.

Signed-off-by: David Howells <dhowells@redhat.com>
2016-07-06 10:51:14 +01:00
..
6lowpan 6lowpan: add support for 802.15.4 short addr handling 2016-06-15 20:41:24 -07:00
9p remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
802
8021q vlan: Propagate MAC address to VLANs 2016-05-31 11:56:48 -07:00
appletalk appletalk: fix erroneous return value 2016-02-18 14:59:34 -05:00
atm net/atm: sk_err_soft must be positive 2016-05-23 13:51:10 -07:00
ax25 ax25: add link layer header validation function 2016-03-09 22:13:01 -05:00
batman-adv sched: remove NET_XMIT_POLICED 2016-06-12 22:02:11 -04:00
bluetooth net: add netdev_lockdep_set_classes() helper 2016-06-09 13:28:37 -07:00
bridge bridge: Don't insert unnecessary local fdb entry on changing mac address 2016-06-08 00:31:38 -07:00
caif net: caif: fix misleading indentation 2016-03-14 13:09:50 -04:00
can can: only call can_stat_update with procfs 2016-06-23 11:23:49 +02:00
ceph libceph: use %s instead of %pE in dout()s 2016-05-30 23:00:23 +02:00
core net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
dcb
dccp dccp: do not assume DCCP code is non preemptible 2016-05-02 17:02:25 -04:00
decnet decnet: Do not build routes to devices without decnet private data. 2016-04-10 23:01:30 -04:00
dns_resolver KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
dsa net: dsa: Initialize CPU port ethtool ops per tree 2016-06-08 11:23:42 -07:00
ethernet eth: Pull header from first fragment via eth_get_headlen 2016-02-24 13:58:05 -05:00
hsr net/hsr: Use setup_timer and mod_timer. 2016-05-16 14:00:43 -04:00
ieee802154 6lowpan: add support for 802.15.4 short addr handling 2016-06-15 20:41:24 -07:00
ipv4 ipv6: RFC 4884 partial support for SIT/GRE tunnels 2016-06-18 22:11:39 -07:00
ipv6 ipv6: RFC 4884 partial support for SIT/GRE tunnels 2016-06-18 22:11:39 -07:00
ipx
irda TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
iucv af_iucv: use paged SKBs for big inbound messages 2016-06-15 12:21:05 -07:00
kcm kcm: fix a signedness in kcm_splice_read() 2016-05-19 11:26:51 -07:00
key
l2tp ipv6: use TOS marks from sockets for routing decision 2016-06-11 15:33:26 -07:00
l3mdev net: vrf: Implement get_saddr for IPv6 2016-06-17 21:25:29 -07:00
lapb net/lapb: tuse %*ph to dump buffers 2016-05-29 22:33:25 -07:00
llc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
mac80211 For the next cycle, we have the following: 2016-06-10 23:13:32 -07:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
mpls mpls: allow routes on ipgre devices 2016-06-16 17:12:07 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-10 11:52:24 -07:00
netlabel netlabel: fix a problem with netlbl_secattr_catmap_setrng() 2016-04-05 16:10:47 -04:00
netlink net/netlink/af_netlink.h: Remove unused structure. 2016-06-09 22:26:24 -07:00
netrom
nfc nfc: nci: Add nci_nfcc_loopback to the nci core 2016-05-04 01:48:16 +02:00
openvswitch openvswitch: Only set mark and labels with a commit flag. 2016-06-25 11:55:51 -04:00
packet packet: use common code for virtio_net_hdr and skb GSO conversion 2016-06-10 23:03:56 -07:00
phonet sock: struct proto hash function may error 2016-02-11 03:54:14 -05:00
qrtr Merge tag 'qcom-soc-for-4.7-2' into net-next 2016-05-17 14:11:19 -04:00
rds RDS: TCP: Fix non static symbol warnings 2016-06-17 22:28:49 -07:00
rfkill rfkill: Use switch to demux userspace operations 2016-04-05 10:48:53 +02:00
rose
rxrpc rxrpc: Use RCU to access a peer's service connection tree 2016-07-06 10:51:14 +01:00
sched net_sched: generalize bulk dequeue 2016-06-25 12:19:35 -04:00
sctp sctp: change sk state to CLOSED instead of CLOSING in sctp_sock_migrate 2016-06-16 14:10:44 -07:00
sunrpc NFS client updates for Linux 4.7 2016-05-26 10:33:33 -07:00
switchdev switchdev: pass pointer to fib_info instead of copy 2016-05-17 13:58:49 -04:00
tipc tipc: Use kmemdup instead of kmalloc and memcpy 2016-06-27 09:56:58 -04:00
unix constify security_path_{mkdir,mknod,symlink} 2016-03-28 00:47:27 -04:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
wimax
wireless For the next cycle, we have the following: 2016-06-10 23:13:32 -07:00
x25 net: fix a kernel infoleak in x25 module 2016-05-09 22:45:33 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
compat.c packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
Kconfig bpf: add generic constant blinding for use in jits 2016-05-16 13:49:32 -04:00
Makefile net: Add Qualcomm IPC router 2016-05-08 23:46:14 -04:00
socket.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
sysctl_net.c