Linux 3.4.1 -> 3.4.74

Conflicts:
	arch/arm/kernel/perf_event.c
	arch/arm/mm/cache-v7.S
	kernel/kthread.c
	kernel/rcutree.c
	net/ipv6/tcp_ipv6.c
Linux 3.4.75 -> 3.4.95

Conflicts:
	fs/ecryptfs/keystore.c
	mm/vmscan.c
Linux 3.4.96
Linux 3.4.97
Linux 3.4.98

Conflicts:
	include/net/bluetooth/hci_core.h
	net/bluetooth/hci_conn.c
Linux 3.4.99
Linux 3.4.100
Linux 3.4.101
Linux 3.4.102
ipv6: use a stronger hash for tcp

It looks like its possible to open thousands of TCP IPv6
sessions on a server, all landing in a single slot of TCP hash
table. Incoming packets have to lookup sockets in a very
long list.

We should hash all bits from foreign IPv6 addresses, using
a salt and hash mix, not a simple XOR.

inet6_ehashfn() can also separately use the ports, instead
of xoring them.

Reported-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Iliyan Malchev <malchev@google.com>

Conflicts:
	include/net/ipv6.h
Linux 3.4.103

Conflicts:
	include/net/secure_seq.h
Linux 3.4.104
Linux 3.4.105

Conflicts:
	init/Kconfig
	kernel/fork.c