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linux/net/ipv4
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Eric Dumazet d83769a580 tcp: fix possible deadlock in tcp_send_fin() 
Using sk_stream_alloc_skb() in tcp_send_fin() is dangerous in
case a huge process is killed by OOM, and tcp_mem[2] is hit.

To be able to free memory we need to make progress, so this
patch allows FIN packets to not care about tcp_mem[2], if
skb allocation succeeded.

In a follow-up patch, we might abort tcp_send_fin() infinite loop
in case TIF_MEMDIE is set on this thread, as memory allocator
did its best getting extra memory already.

This patch reverts d22e15371811 ("tcp: fix tcp fin memory accounting")

Fixes: d22e15371811 ("tcp: fix tcp fin memory accounting")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-22 14:13:11 -04:00
..
netfilter
netfilter: nf_tables: switch registers to 32 bit addressing
2015-04-13 17:17:29 +02:00
af_inet.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ah4.c
ipsec: Remove obsolete MAX_AH_AUTH_LEN
2014-09-18 10:54:36 +02:00
arp.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
cipso_ipv4.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
datagram.c
net: Save TX flow hash in sock and set in skbuf on xmit
2014-07-07 21:14:21 -07:00
devinet.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
esp4.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
fib_frontend.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-04-06 22:34:15 -04:00
fib_lookup.h
ipv4: FIB Local/MAIN table collapse
2015-03-11 16:22:14 -04:00
fib_rules.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
fib_semantics.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
fib_trie.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
fou.c
fou: avoid missing unlock in failure path
2015-04-16 12:11:19 -04:00
geneve.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-04-14 15:44:14 -04:00
gre_demux.c
net: Fix GRE RX to use skb_transport_header for GRE header offset
2014-09-08 15:23:05 -07:00
gre_offload.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
icmp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
igmp.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
inet_connection_sock.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
inet_diag.c
inet_diag: fix access to tcp cc information
2015-04-17 13:28:31 -04:00
inet_fragment.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
inet_hashtables.c
tcp/dccp: get rid of central timewait timer
2015-04-13 16:40:05 -04:00
inet_lro.c
lro: remove dead code
2013-12-29 16:34:25 -05:00
inet_timewait_sock.c
tcp/dccp: get rid of central timewait timer
2015-04-13 16:40:05 -04:00
inetpeer.c
inet: remove dead inetpeer sequence code
2014-09-08 16:42:42 -07:00
ip_forward.c
ip_forward: Drop frames with attached skb->sk
2015-04-20 14:07:33 -04:00
ip_fragment.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ip_gre.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ip_input.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
ip_options.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ip_output.c
net: remove extra newlines
2015-04-07 22:24:37 -04:00
ip_sockglue.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ip_tunnel_core.c
ipv4: ip_tunnel: use net namespace from rtable not socket
2015-04-08 12:09:42 -04:00
ip_tunnel.c
udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb().
2015-04-07 15:29:08 -04:00
ip_vti.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ipcomp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipconfig.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipip.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipmr.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
Kconfig
net: Move fou_build_header into fou.c and refactor
2014-11-05 16:30:02 -05:00
Makefile
net: Add Geneve tunneling protocol driver
2014-10-06 00:32:20 -04:00
netfilter.c
netfilter: Use nf_hook_state in nf_queue_entry.
2015-04-04 12:25:22 -04:00
ping.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
proc.c
tcp/dccp: get rid of central timewait timer
2015-04-13 16:40:05 -04:00
protocol.c
net: Export inet_offloads and inet6_offloads
2014-09-19 17:15:31 -04:00
raw.c
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-13 18:18:05 -04:00
route.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
syncookies.c
tcp: fix ipv4 mapped request socks
2015-03-25 00:57:48 -04:00
sysctl_net_ipv4.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
tcp_bic.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp_cong.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-03-20 18:51:09 -04:00
tcp_cubic.c
tcp: restore 1.5x per RTT limit to CUBIC cwnd growth in congestion avoidance
2015-03-11 16:51:51 -04:00
tcp_dctcp.c
inet_diag: fix access to tcp cc information
2015-04-17 13:28:31 -04:00
tcp_diag.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
tcp_fastopen.c
tcp: RFC7413 option support for Fast Open server
2015-04-07 18:36:39 -04:00
tcp_highspeed.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_htcp.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_hybla.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_illinois.c
inet_diag: fix access to tcp cc information
2015-04-17 13:28:31 -04:00
tcp_input.c
tcp: add memory barriers to write space paths
2015-04-21 15:57:34 -04:00
tcp_ipv4.c
tcp/dccp: get rid of central timewait timer
2015-04-13 16:40:05 -04:00
tcp_lp.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_memcontrol.c
memcg: cleanup static keys decrement
2015-02-12 18:54:10 -08:00
tcp_metrics.c
tcp: RFC7413 option support for Fast Open client
2015-04-07 18:36:39 -04:00
tcp_minisocks.c
tcp/dccp: get rid of central timewait timer
2015-04-13 16:40:05 -04:00
tcp_offload.c
tcp: cleanup static functions
2015-02-28 16:56:51 -05:00
tcp_output.c
tcp: fix possible deadlock in tcp_send_fin()
2015-04-22 14:13:11 -04:00
tcp_probe.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_scalable.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp_timer.c
tcp: RFC7413 option support for Fast Open client
2015-04-07 18:36:39 -04:00
tcp_vegas.c
inet_diag: fix access to tcp cc information
2015-04-17 13:28:31 -04:00
tcp_vegas.h
inet_diag: fix access to tcp cc information
2015-04-17 13:28:31 -04:00
tcp_veno.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp_westwood.c
inet_diag: fix access to tcp cc information
2015-04-17 13:28:31 -04:00
tcp_yeah.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp.c
tcp: add memory barriers to write space paths
2015-04-21 15:57:34 -04:00
tunnel4.c
…
udp_diag.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
udp_impl.h
net: Remove iocb argument from sendmsg and recvmsg
2015-03-02 13:06:31 -05:00
udp_offload.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
udp_tunnel.c
udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb().
2015-04-07 15:29:08 -04:00
udp.c
net: remove extra newlines
2015-04-07 22:24:37 -04:00
udplite.c
net: Eliminate no_check from protosw
2014-05-23 16:28:53 -04:00
xfrm4_input.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
xfrm4_mode_beet.c
ipv4: ERROR: code indent should use tabs where possible
2013-12-26 13:43:21 -05:00
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
ipv4: hash net ptr into fragmentation bucket selection
2015-03-25 14:07:04 -04:00
xfrm4_output.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
xfrm4_policy.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
xfrm4_protocol.c
xfrm4: Remove duplicate semicolon
2014-06-30 07:49:47 +02:00
xfrm4_state.c
inet: make no_pmtu_disc per namespace and kill ipv4_config
2013-12-18 16:58:20 -05:00
xfrm4_tunnel.c
sit: add IPv4 over IPv4 support
2013-05-31 17:19:05 -07:00