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Herbert Xu eb4dea5853 net: Fix percpu counters deadlock 
When we converted the protocol atomic counters such as the orphan
count and the total socket count deadlocks were introduced due to
the mismatch in BH status of the spots that used the percpu counter
operations.

Based on the diagnosis and patch by Peter Zijlstra, this patch
fixes these issues by disabling BH where we may be in process
context.

Reported-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2008-12-29 23:04:08 -08:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
Kconfig ipsec: ipcomp - Merge IPComp implementations 2008-07-25 02:54:40 -07:00
Makefile [IPV6] MROUTE: Support multicast forwarding. 2008-04-05 22:33:38 +09:00
addrconf.c ip: convert to net_device_ops for ioctl 2008-11-19 22:42:41 -08:00
addrconf_core.c [IPV6]: ipv6_addr_type() doesn't know about RFC4193 addresses. 2007-07-31 02:28:21 -07:00
addrlabel.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
af_inet6.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
ah6.c netns xfrm: AH/ESP in netns! 2008-11-25 17:59:27 -08:00
anycast.c net: replace %#p6 format specifier with %pi6 2008-10-29 12:50:24 -07:00
datagram.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
esp6.c netns xfrm: AH/ESP in netns! 2008-11-25 17:59:27 -08:00
exthdrs.c net: replace %p6 with %pI6 2008-10-29 12:52:50 -07:00
exthdrs_core.c [NET] IPV6: Fix whitespace errors. 2007-02-10 23:19:42 -08:00
fib6_rules.c netns: Add network namespace argument to rt6_fill_node() and ipv6_dev_get_saddr() 2008-08-14 15:33:21 -07:00
icmp.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
inet6_connection_sock.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
inet6_hashtables.c net: Convert TCP/DCCP listening hash tables to use RCU 2008-11-23 17:22:55 -08:00
ip6_fib.c netns: Add network namespace argument to rt6_fill_node() and ipv6_dev_get_saddr() 2008-08-14 15:33:21 -07:00
ip6_flowlabel.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
ip6_input.c ipv6: added net argument to IP6_INC_STATS_BH 2008-10-08 11:09:27 -07:00
ip6_output.c netns: ip6mr: allocate mroute6_socket per-namespace. 2008-12-10 16:07:08 -08:00
ip6_tunnel.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
ip6mr.c ip6mr: use goto to common label instead of opencoding 2008-12-14 23:15:49 -08:00
ipcomp6.c netns xfrm: state lookup in netns 2008-11-25 17:30:50 -08:00
ipv6_sockglue.c ipv6: fix the return interface index when get it while no message is received 2008-12-16 02:07:45 -08:00
mcast.c ipv6/mcast: join error paths using goto 2008-12-14 23:15:21 -08:00
mip6.c netns xfrm: KM reporting in netns 2008-11-25 17:51:01 -08:00
ndisc.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-12-15 20:03:50 -08:00
netfilter.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2008-11-28 02:19:15 -08:00
proc.c net: fix tiny output corruption of /proc/net/snmp6 2008-11-20 04:20:10 -08:00
protocol.c net: remove CVS keywords 2008-06-11 21:00:38 -07:00
raw.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
reassembly.c net: '&' redux 2008-11-03 18:21:05 -08:00
route.c netns: ip6mr: enable namespace support in ipv6 multicast forwarding code 2008-12-10 16:30:15 -08:00
sit.c net: fix tunnels in netns after ndo_ changes 2008-11-23 17:26:26 -08:00
syncookies.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
sysctl_net_ipv6.c net: '&' redux 2008-11-03 18:21:05 -08:00
tcp_ipv6.c net: Fix percpu counters deadlock 2008-12-29 23:04:08 -08:00
tunnel6.c [IPV6] TUNNEL6: Fix incoming packet length check for inter-protocol tunnel. 2008-06-05 04:02:32 +09:00
udp.c ipv6: fix the outgoing interface selection order in udpv6_sendmsg() 2008-12-16 02:08:29 -08:00
udp_impl.h udp: introduce struct udp_table and multiple spinlocks 2008-10-29 01:41:45 -07:00
udplite.c udp: RCU handling for Unicast packets. 2008-10-29 02:11:14 -07:00
xfrm6_input.c netns xfrm: per-netns MIBs 2008-11-25 17:59:52 -08:00
xfrm6_mode_beet.c ipsec: Interfamily IPSec BEET, ipv4-inner ipv6-outer 2008-08-06 02:40:25 -07:00
xfrm6_mode_ro.c [IPSEC]: Make x->lastused an unsigned long 2008-01-28 14:53:52 -08:00
xfrm6_mode_transport.c [IPSEC]: Use IPv6 calling convention as the convention for x->mode->output 2007-10-10 16:55:54 -07:00
xfrm6_mode_tunnel.c [IPSEC]: Fix inter address family IPsec tunnel handling. 2008-03-24 14:51:51 -07:00
xfrm6_output.c [IPSEC]: Fix inter address family IPsec tunnel handling. 2008-03-24 14:51:51 -07:00
xfrm6_policy.c netns xfrm: ->get_saddr in netns 2008-11-25 17:56:49 -08:00
xfrm6_state.c xfrm: remove useless forward declarations 2008-11-25 01:05:54 -08:00
xfrm6_tunnel.c xfrm6_tunnel: join error paths using goto 2008-12-14 23:13:48 -08:00