android_kernel_xiaomi_sm8450

History

Eric Dumazet 230140cffa [INET]: Remove per bucket rwlock in tcp/dccp ehash table.

As done two years ago on IP route cache table (commit
22c047ccbc68fa8f3fa57f0e8f906479a062c426) , we can avoid using one
lock per hash bucket for the huge TCP/DCCP hash tables.

On a typical x86_64 platform, this saves about 2MB or 4MB of ram, for
litle performance differences. (we hit a different cache line for the
rwlock, but then the bucket cache line have a better sharing factor
among cpus, since we dirty it less often). For netstat or ss commands
that want a full scan of hash table, we perform fewer memory accesses.

Using a 'small' table of hashed rwlocks should be more than enough to
provide correct SMP concurrency between different buckets, without
using too much memory. Sizing of this table depends on
num_possible_cpus() and various CONFIG settings.

This patch provides some locking abstraction that may ease a future
work using a different model for TCP/DCCP table.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2007-11-07 04:15:11 -08:00

Use helpers to obtain task pid in printks

2007-10-19 11:53:43 -07:00

bluetooth

[Bluetooth] Add support for handling simple eSCO links

2007-10-22 02:59:47 -07:00

irda

[IRDA]: Make ircomm_tty static.

2007-10-26 03:56:43 -07:00

iucv

[AF_IUCV]: postpone receival of iucv-packets

2007-10-10 16:54:51 -07:00

netfilter

[INET]: Collect common frag sysctl variables together

2007-10-15 12:26:40 -07:00

sctp

SCTP endianness annotations regression

2007-10-29 07:41:32 -07:00

tc_act

[PKT_SCHED]: Add stateless NAT

2007-10-10 16:53:11 -07:00

tipc

[TIPC]: Optimize stream send routine to avoid fragmentation

2007-07-10 22:06:12 -07:00

act_api.h

[NET_SCHED]: Kill CONFIG_NET_CLS_POLICE

2007-07-15 00:03:05 -07:00

addrconf.h

[IPV6] MIP6: Loadable module support for MIPv6.

2007-07-10 22:15:42 -07:00

af_rxrpc.h

[AF_RXRPC]: Add an interface to the AF_RXRPC module for the AFS filesystem to use

2007-04-26 15:50:17 -07:00

af_unix.h

[AF_UNIX]: Make code static.

2007-07-31 02:28:27 -07:00

ah.h

[IPSEC]: Get rid of ipv6_{auth,esp,comp}_hdr

2007-10-10 16:55:55 -07:00

arp.h

[IPV6]: Assorted trivial endianness annotations.

2006-12-02 21:22:50 -08:00

atmclip.h

[ATM]: Annotations.

2006-12-02 21:22:55 -08:00

ax25.h

[NET]: Move hardware header operations out of netdevice.

2007-10-10 16:52:52 -07:00

ax88796.h

ax88796: add 93cx6 eeprom support

2007-10-10 16:53:56 -07:00

cfg80211.h

[NL80211]: add netlink interface to cfg80211

2007-10-10 16:52:14 -07:00

checksum.h

[NET]: Make mangling a checksum (0 -> 0xffff on the wire) explicit.

2006-12-02 21:23:39 -08:00

cipso_ipv4.h

[NetLabel]: consolidate the struct socket/sock handling to just struct sock

2007-06-08 13:33:09 -07:00

compat.h

[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution

2007-04-25 22:24:04 -07:00

datalink.h

[NET]: Kill skb->real_dev

2005-08-29 15:32:25 -07:00

dn_dev.h

[DECnet]: Endian annotation and fixes for DECnet.

2006-03-20 22:42:39 -08:00

dn_fib.h

[DECNet]: Use rtnl registration interface

2007-04-25 22:27:12 -07:00

dn_neigh.h

[DECnet]: Endian annotation and fixes for DECnet.

2006-03-20 22:42:39 -08:00

dn_nsp.h

[DECnet]: Endian annotation and fixes for DECnet.

2006-03-20 22:42:39 -08:00

dn_route.h

[NET]: Wrap netdevice hardware header creation.

2007-10-10 16:52:50 -07:00

dn.h

[DECNET]: Another unnecessary net/tcp.h inclusion in net/dn.h

2007-07-10 23:02:12 -07:00

dsfield.h

[NET]: IP header modifier helpers annotations.

2006-12-02 21:23:40 -08:00

dst.h

[IPV4]: The scheduled removal of multipath cached routing support.

2007-07-10 22:05:57 -07:00

esp.h

cleanup asm/scatterlist.h includes

2007-11-02 08:47:06 +01:00

fib_rules.h

[IPV4/IPV6/DECNET]: Small cleanup for fib rules.

2007-10-10 16:51:22 -07:00

flow.h

[IPV6] MIP6: Kill unnecessary ifdefs.

2007-07-10 22:15:41 -07:00

gen_stats.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

genetlink.h

[GENETLINK]: Dynamic multicast groups.

2007-07-18 15:47:52 -07:00

icmp.h

[IPV4]: Add ICMPMsgStats MIB (RFC 4293)

2007-10-10 16:51:28 -07:00

ieee80211_crypt.h

[PATCH] Update my email address from jkmaline@cc.hut.fi to j@w1.fi

2007-04-28 11:01:01 -04:00

ieee80211_radiotap.h

[MAC80211]: Add get_unaligned to ieee80211_get_radiotap_len

2007-10-10 16:47:40 -07:00

ieee80211.h

[NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()

2007-10-10 16:51:42 -07:00

ieee80211softmac_wx.h

[PATCH] softmac: add SIOCSIWMLME

2006-04-24 16:15:58 -04:00

ieee80211softmac.h

[IEEE80211]: Fix softmac lockdep reports.

2007-10-10 16:52:22 -07:00

if_inet6.h

[IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2]

2007-10-10 16:51:27 -07:00

inet6_connection_sock.h

[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().

2007-01-26 01:04:55 -08:00

inet6_hashtables.h

[INET]: Use jhash + random secret for ehash.

2007-04-25 22:28:06 -07:00

inet_common.h

[NET]: move struct proto_ops to const

2006-01-03 13:11:15 -08:00

inet_connection_sock.h

[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().

2007-01-26 01:04:55 -08:00

inet_ecn.h

[SK_BUFF]: Convert skb->tail to sk_buff_data_t

2007-04-25 22:26:28 -07:00

inet_frag.h

[INET]: Remove no longer needed ->equal callback

2007-10-17 19:47:56 -07:00

inet_hashtables.h

[INET]: Remove per bucket rwlock in tcp/dccp ehash table.

2007-11-07 04:15:11 -08:00

inet_sock.h

[UDP]: Make use of inet_iif() when doing socket lookups.

2007-10-25 18:54:46 -07:00

inet_timewait_sock.h

[NET]: Add a network namespace parameter to struct sock

2007-10-10 16:49:05 -07:00

inetpeer.h

[IPV4] inet_peer: Group together avl_left, avl_right, v4daddr to speedup lookups on some CPUS

2006-10-20 00:28:35 -07:00

ip6_checksum.h

[IPV6]: Dumb typo in generic csum_ipv6_magic()

2006-12-22 11:12:07 -08:00

ip6_fib.h

[IPV6] XFRM: Fix connected socket to use transformation.

2007-10-10 16:48:32 -07:00

ip6_route.h

[IPv6]: Use rtnl registration interface

2007-04-25 22:27:13 -07:00

ip6_tunnel.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ip_fib.h

[IPV4]: Compact some ifdefs in the fib code.

2007-11-07 04:11:41 -08:00

ip_vs.h

[IPVS]: Synchronize closing of Connections

2007-11-07 04:15:10 -08:00

ip.h

[INET]: Consolidate the xxx_evictor

2007-10-15 12:26:42 -07:00

ipcomp.h

[IPSEC]: Get rid of ipv6_{auth,esp,comp}_hdr

2007-10-10 16:55:55 -07:00

ipconfig.h

[NET]: ipconfig and nfsroot annotations

2006-12-02 21:21:09 -08:00

ipip.h

[IPV6] net/ipv6/sit.c: make 2 functions static

2006-12-02 21:26:15 -08:00

ipv6.h

[INET]: Remove no longer needed ->equal callback

2007-10-17 19:47:56 -07:00

ipx.h

[SK_BUFF]: Introduce skb_transport_header(skb)

2007-04-25 22:25:31 -07:00

iw_handler.h

[NL80211]: add netlink interface to cfg80211

2007-10-10 16:52:14 -07:00

lapb.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_c_ac.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_c_ev.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_c_st.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_conn.h

[NET]: Make socket creation namespace safe.

2007-10-10 16:49:07 -07:00

llc_if.h

[LLC]: add multicast support for datagrams

2006-06-17 21:26:08 -07:00

llc_pdu.h

[SK_BUFF]: Introduce skb_network_header()

2007-04-25 22:24:59 -07:00

llc_s_ac.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_s_ev.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_s_st.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

llc_sap.h

[LLC]: Fix the accept path

2005-09-22 07:57:21 -03:00

llc.h

[LLC]: llc_mac_hdr_init const arguments

2006-03-20 22:59:36 -08:00

mac80211.h

[MAC80211]: Update beacon_update callback documentation

2007-10-10 16:54:21 -07:00

mip6.h

[IPV6] MIP6: Loadable module support for MIPv6.

2007-07-10 22:15:42 -07:00

ndisc.h

[IPv6]: Export userland ND options through netlink (RDNSS support)

2007-10-10 21:22:05 -07:00

neighbour.h

[NEIGH]: Use rtnl registration interface

2007-04-25 22:27:06 -07:00

net_namespace.h

[NET]: Relax the reference counting of init_net_ns

2007-11-01 00:43:49 -07:00

netdma.h

Remove all inclusions of <linux/config.h>

2006-10-04 03:38:54 -04:00

netevent.h

[NET]: Network Event Notifier Mechanism.

2006-08-02 13:38:20 -07:00

netlabel.h

SELinux: restore proper NetLabel caching behavior

2007-08-02 11:52:21 -04:00

netlink.h

[NET]: make netlink user -> kernel interface synchronious

2007-10-10 21:15:29 -07:00

netrom.h

[PATCH] mark struct file_operations const 1

2007-02-12 09:48:44 -08:00

nexthop.h

[IPv4]: FIB configuration using struct fib_config

2006-09-22 14:55:04 -07:00

p8022.h

[NET]: Fix sparse warnings

2005-08-29 16:01:32 -07:00

pkt_cls.h

[NET]: Make the device list and device lookups per namespace.

2007-10-10 16:49:10 -07:00

pkt_sched.h

[NET]: Move hardware header operations out of netdevice.

2007-10-10 16:52:52 -07:00

protocol.h

[IPV6]: Replace sk_buff ** with sk_buff * in input handlers

2007-10-15 12:50:28 -07:00

psnap.h

[NET]: Kill skb->real_dev

2005-08-29 15:32:25 -07:00

raw.h

Merge git://git.infradead.org/hdrcleanup-2.6

2006-06-20 15:10:08 -07:00

rawv6.h

[IPV6] MIP6: Loadable module support for MIPv6.

2007-07-10 22:15:42 -07:00

red.h

[NET_SCHED]: turn PSCHED_GET_TIME into inline function

2007-04-25 22:27:55 -07:00

request_sock.h

[PATCH] slab: remove kmem_cache_t

2006-12-07 08:39:25 -08:00

rose.h

[ROSE]: Fix rose.ko oops on unload

2007-10-07 23:44:17 -07:00

route.h

[IPV4]: Make ip_tos2prio const.

2007-07-10 22:19:04 -07:00

rtnetlink.h

[NET]: Make the device list and device lookups per namespace.

2007-10-10 16:49:10 -07:00

sch_generic.h

[NET_CLS_ACT]: Introduce skb_act_clone

2007-10-26 02:47:23 -07:00

scm.h

pid namespaces: changes to show virtual ids to user

2007-10-19 11:53:40 -07:00

slhc_vj.h

[NET]: Remove __ARGS from include/net/slhc_vj.h

2005-07-05 15:12:04 -07:00

snmp.h

[IPV4]: Add ICMPMsgStats MIB (RFC 4293)

2007-10-10 16:51:28 -07:00

sock.h

[NET]: Define infrastructure to keep 'inuse' changes in an efficent SMP/NUMA way.

2007-11-07 04:08:57 -08:00

syncppp.h

[PATCH] drivers/net/wan/: possible cleanups

2005-09-14 08:36:54 -04:00

tcp_states.h

[TCP]: Move the TCPF_ enum to tcp_states.h

2006-01-03 13:10:57 -08:00

tcp.h

[TCP]: Remove unneeded implicit type cast when calling tcp_minshall_update()

2007-10-23 21:27:55 -07:00

timewait_sock.h

[PATCH] slab: remove kmem_cache_t

2006-12-07 08:39:25 -08:00

transp_v6.h

[NET]: Supporting UDP-Lite (RFC 3828) in Linux

2006-12-02 21:22:46 -08:00

udp.h

[UDP]: Revert 2-pass hashing changes.

2007-06-07 13:40:50 -07:00

udplite.h

[UDP]: Revert 2-pass hashing changes.

2007-06-07 13:40:50 -07:00

veth.h

[NET]: Virtual ethernet device driver.

2007-10-10 16:47:46 -07:00

wext.h

[NET]: Make the device list and device lookups per namespace.

2007-10-10 16:49:10 -07:00

wireless.h

[WIRELESS] cfg80211: New wireless config infrastructure.

2007-04-25 22:29:41 -07:00

x25.h

[X.25]: Adds /proc/sys/net/x25/x25_forward to control forwarding.

2007-02-08 13:34:36 -08:00

x25device.h

[SK_BUFF]: Introduce skb_reset_mac_header(skb)

2007-04-25 22:24:32 -07:00

xfrm.h

[NET]: Don't declare extern variables in net/core/sysctl_net_core.c

2007-10-23 21:27:56 -07:00