Eric Dumazet 845704a535 tcp: avoid looping in tcp_send_fin() ... Presence of an unbound loop in tcp_send_fin() had always been hard to explain when analyzing crash dumps involving gigantic dying processes with millions of sockets. Lets try a different strategy : In case of memory pressure, try to add the FIN flag to last packet in write queue, even if packet was already sent. TCP stack will be able to deliver this FIN after a timeout event. Note that this FIN being delivered by a retransmit, it also carries a Push flag given our current implementation. By checking sk_under_memory_pressure(), we anticipate that cooking many FIN packets might deplete tcp memory. In the case we could not allocate a packet, even with __GFP_WAIT allocation, then not sending a FIN seems quite reasonable if it allows to get rid of this socket, free memory, and not block the process from eventually doing other useful work. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-04-24 11:06:48 -04:00
..
6lowpan	6lowpan: nhc: add other known rfc6282 compressions	2015-02-14 23:08:44 +01:00
9p	9p: patches for 4.1 merge window	2015-04-18 17:45:30 -04:00
802	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
8021q	vlan: implement ndo_get_iflink	2015-04-02 14:05:00 -04:00
appletalk	appletalk: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:37 -05:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
ax25	ax25: Fix the build when CONFIG_INET is disabled	2015-03-05 13:17:39 -05:00
batman-adv	dev: introduce dev_get_iflink()	2015-04-02 14:04:59 -04:00
bluetooth	Bluetooth: hidp: Fix regression with older userspace and flags validation	2015-04-18 11:01:08 -04:00
bridge	netfilter: nf_tables: switch registers to 32 bit addressing	2015-04-13 17:17:29 +02:00
caif	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-20 18:51:09 -04:00
can	can: introduce new raw socket option to join the given CAN filters	2015-04-01 11:28:22 +02:00
ceph	Revert "libceph: use memalloc flags for net IO"	2015-04-07 19:08:35 +03:00
core	net: do not deplete pfmemalloc reserve	2015-04-22 16:24:59 -04:00
dcb	net/dcb: Add IEEE QCN attribute	2015-03-06 21:50:02 -05:00
dccp	tcp/dccp: get rid of central timewait timer	2015-04-13 16:40:05 -04:00
decnet	netfilter: Pass socket pointer down through okfn().	2015-04-07 15:25:55 -04:00
dns_resolver	Merge commit 'v3.16' into next	2014-10-01 00:44:04 +10:00
dsa	net: dsa: use DEVICE_ATTR_RW to declare temp1_max	2015-04-17 15:58:37 -04:00
ethernet	ethernet: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:38 -05:00
hsr	net/hsr: Fix NULL pointer dereference and refcnt bugs when deleting a HSR interface.	2015-03-01 13:40:23 -05:00
ieee802154	ieee802154: don't export static symbol	2015-03-14 17:11:31 +01:00
ipv4	tcp: avoid looping in tcp_send_fin()	2015-04-24 11:06:48 -04:00
ipv6	ip6_gre: use netdev_alloc_pcpu_stats()	2015-04-22 15:39:05 -04:00
ipx	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
irda	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-09 23:38:02 -04:00
iucv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-02 16:16:53 -04:00
key	xfrm: simplify xfrm_address_t use	2015-03-31 13:58:35 -04:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-06 22:34:15 -04:00
lapb	lapb: move EXPORT_SYMBOL after functions.	2014-10-24 15:51:42 -04:00
llc	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
mac802154	mac802154: cleanup concurrent check	2015-03-27 19:18:50 +01:00
mpls	mpls: Prevent use of implicit NULL label as outgoing label	2015-04-22 14:24:54 -04:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2015-04-14 18:51:19 -04:00
netlabel	netlink: implement nla_put_in_addr and nla_put_in6_addr	2015-03-31 13:58:35 -04:00
netlink	rhashtable: provide len to obj_hashfn	2015-03-25 17:18:33 +01:00
netrom	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
nfc	nfc: Fix portid type in urelease_work	2015-04-13 16:35:16 -04:00
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
packet	af_packet: pass checksum validation status to the user	2015-03-23 22:01:28 -04:00
phonet	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
rds	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-14 15:44:14 -04:00
rfkill	Last round of updates for net-next:	2015-02-04 14:57:45 -08:00
rose	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
rxrpc	new helper: msg_data_left()	2015-04-11 15:53:35 -04:00
sched	act_mirred: Fix bogus header when redirecting from VLAN	2015-04-17 13:29:28 -04:00
sctp	sctp: avoid to repeatedly declare external variables	2015-03-25 11:40:16 -04:00
sunrpc	lib/string_helpers.c: change semantics of string_escape_mem	2015-04-15 16:35:24 -07:00
switchdev	switchdev: fix stp update API to work with layered netdevices	2015-03-23 16:44:56 -04:00
tipc	tipc: fix node refcount issue	2015-04-23 11:50:34 -04:00
unix	net: unix: garbage: fixed several comment and whitespace style issues	2015-04-23 13:15:20 -04:00
vmw_vsock	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
wimax	wimax: convert printk to pr_foo()	2014-10-07 20:28:44 -04:00
wireless	cfg80211: don't allow disabling WEXT if it's required	2015-04-08 09:19:29 +02:00
x25	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-14 15:44:14 -04:00
compat.c	net: switch importing msghdr from userland to {compat_,}import_iovec()	2015-04-09 00:02:26 -04:00
Kconfig	kconfig: use bool instead of boolean for type definition attributes	2015-01-07 13:08:04 +01:00
Makefile	mpls: Refactor how the mpls module is built	2015-03-04 00:26:06 -05:00
socket.c	make new_sync_{read,write}() static	2015-04-11 22:29:40 -04:00
sysctl_net.c