Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Calvin Owens 5d37852bf7 Revert "net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN" ... Commit 8133534c76 ("net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN") modified four sysctls to enforce that the values written to them are not less than SOCK_MIN_{RCV,SND}BUF. That change causes 4096 to no longer be accepted as a valid value for 'min' in tcp_wmem and udp_wmem_min. 4096 has been the default for both of those sysctls for a long time, and unfortunately seems to be an extremely popular setting. This change breaks a large number of sysctl configurations at Facebook. That commit referred to b1cb59cf2e ("net: sysctl_net_core: check SNDBUF and RCVBUF for min length"), which choose to use the SOCK_MIN constants as the lower limits to avoid nasty bugs. But AFAICS, a limit of SOCK_MIN_SNDBUF isn't necessary to do that: the BUG_ON cited in the commit message seems to have happened because unix_stream_sendmsg() expects a minimum of a full page (ie SK_MEM_QUANTUM) and the math broke, not because it had less than SOCK_MIN_SNDBUF allocated. This particular issue doesn't seem to affect TCP however: using a setting of "1 1 1" for tcp_{r,w}mem works, although it's obviously suboptimal. SK_MEM_QUANTUM would be a nice minimum, but it's 64K on some archs, so there would still be breakage. Since a value of one doesn't seem to cause any problems, we can drop the minimum 8133534c added to fix this. This reverts commit 8133534c76. Fixes: 8133534c76 ("net: limit tcp/udp rmem/wmem to SOCK_MIN...") Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Sorin Dumitru <sorin@returnze.ro> Signed-off-by: Calvin Owens <calvinowens@fb.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-08-17 12:10:30 -07:00
..
netfilter	netfilter: SYNPROXY: fix sending window update to client	2015-08-10 13:55:07 +02:00
af_inet.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-06-24 02:58:51 -07:00
ah4.c
arp.c	arp: filter NOARP neighbours for SIOCGARP	2015-07-28 23:41:24 -07:00
cipso_ipv4.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
datagram.c	ipv6: lock socket in ip6_datagram_connect()	2015-07-15 17:25:51 -07:00
devinet.c	net/ipv4: suppress NETDEV_UP notification on address lifetime update	2015-07-28 23:38:13 -07:00
esp4.c	esp4: Switch to new AEAD interface	2015-05-28 11:23:20 +08:00
fib_frontend.c	net: ipv4 sysctl option to ignore routes when nexthop link is down	2015-06-24 02:15:54 -07:00
fib_lookup.h	ipv4: consider TOS in fib_select_default	2015-07-24 22:46:11 -07:00
fib_rules.c	net: ipv4 sysctl option to ignore routes when nexthop link is down	2015-06-24 02:15:54 -07:00
fib_semantics.c	ipv4: consider TOS in fib_select_default	2015-07-24 22:46:11 -07:00
fib_trie.c	ipv4: off-by-one in continuation handling in /proc/net/route	2015-08-13 21:16:29 -07:00
fou.c	fou: avoid missing unlock in failure path	2015-04-16 12:11:19 -04:00
geneve_core.c	geneve_core: identify as driver library in modules description	2015-05-13 15:59:13 -04:00
gre_demux.c
gre_offload.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
icmp.c
igmp.c	net: fix wrong skb_get() usage / crash in IGMP/MLD parsing code	2015-08-13 17:08:39 -07:00
inet_connection_sock.c	inet: fix potential deadlock in reqsk_queue_unlink()	2015-08-13 22:46:22 -07:00
inet_diag.c	net: inet_diag: always export IPV6_V6ONLY sockopt for listening sockets	2015-07-10 23:25:24 -07:00
inet_fragment.c	inet: frags: remove INET_FRAG_EVICTED and use list_evictor for the test	2015-07-26 21:00:15 -07:00
inet_hashtables.c	tcp: suppress a division by zero warning	2015-07-21 22:13:13 -07:00
inet_lro.c
inet_timewait_sock.c	tcp/dccp: tw_timer_handler() is static	2015-05-13 15:21:33 -04:00
inetpeer.c
ip_forward.c	ip: reject too-big defragmented DF-skb when forwarding	2015-05-25 00:08:48 -04:00
ip_fragment.c	inet: frags: remove INET_FRAG_EVICTED and use list_evictor for the test	2015-07-26 21:00:15 -07:00
ip_gre.c
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2015-06-15 14:30:32 -07:00
ip_sockglue.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-06-24 02:58:51 -07:00
ip_tunnel.c	ip_tunnel: fix ipv4 pmtu check to honor inner ip header df	2015-07-08 16:03:09 -07:00
ip_tunnel_core.c	ip_tunnel: Report Rx dropped in ip_tunnel_get_stats64	2015-05-14 22:30:54 -04:00
ip_vti.c	ip_vti/ip6_vti: Preserve skb->mark after rcv_cb call	2015-05-28 06:23:32 +02:00
ipcomp.c
ipconfig.c
ipip.c	ipip: fix one sparse error	2015-05-17 13:08:29 -04:00
ipmr.c	netfilter: Pass socket pointer down through okfn().	2015-04-07 15:25:55 -04:00
Kconfig	tcp: add CDG congestion control	2015-06-11 00:09:12 -07:00
Makefile	tcp: add CDG congestion control	2015-06-11 00:09:12 -07:00
netfilter.c	netfilter: don't use module_init/exit in core IPV4 code	2015-06-16 14:12:34 -04:00
ping.c	ipv4: Missing sk_nulls_node_init() in ping_unhash().	2015-05-01 22:02:47 -04:00
proc.c	tcp: add TCPWinProbe and TCPKeepAlive SNMP counters	2015-05-09 16:42:32 -04:00
protocol.c
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: consider TOS in fib_select_default	2015-07-24 22:46:11 -07:00
syncookies.c	tcp: get_cookie_sock() consolidation	2015-06-07 15:19:52 -07:00
sysctl_net_ipv4.c	Revert "net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN"	2015-08-17 12:10:30 -07:00
tcp.c	tcp: fix recv with flags MSG_WAITALL | MSG_PEEK	2015-07-27 01:06:53 -07:00
tcp_bic.c
tcp_cdg.c	tcp: cdg: use div_u64()	2015-06-14 12:57:45 -07:00
tcp_cong.c	tcp: fix child sockets to use system default congestion control if not set	2015-05-31 21:49:14 -07:00
tcp_cubic.c
tcp_dctcp.c	net: tcp: dctcp_update_alpha() fixes.	2015-06-10 23:28:33 -07:00
tcp_diag.c	sock_diag: implement a get_info handler for inet	2015-06-15 19:49:22 -07:00
tcp_fastopen.c	tcp: Do not call tcp_fastopen_reset_cipher from interrupt context	2015-06-23 02:38:10 -07:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c	tcp: prepare CC get_info() access from getsockopt()	2015-04-29 17:10:38 -04:00
tcp_input.c	tcp: don't use F-RTO on non-recurring timeouts	2015-07-15 17:17:21 -07:00
tcp_ipv4.c	inet: fix possible request socket leak	2015-08-10 21:17:45 -07:00
tcp_lp.c
tcp_memcontrol.c
tcp_metrics.c	tcp: RFC7413 option support for Fast Open client	2015-04-07 18:36:39 -04:00
tcp_minisocks.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-06-01 22:51:30 -07:00
tcp_offload.c	tcp: reserve tcp_skb_mss() to tcp stack	2015-06-11 16:33:10 -07:00
tcp_output.c	tcp: remove obsolete check in tcp_set_skb_tso_segs()	2015-06-11 16:33:11 -07:00
tcp_probe.c
tcp_scalable.c
tcp_timer.c	tcp: introduce tcp_under_memory_pressure()	2015-05-17 22:45:48 -04:00
tcp_vegas.c	tcp: prepare CC get_info() access from getsockopt()	2015-04-29 17:10:38 -04:00
tcp_vegas.h	tcp: prepare CC get_info() access from getsockopt()	2015-04-29 17:10:38 -04:00
tcp_veno.c
tcp_westwood.c	tcp_westwood: fix tcp_westwood_info()	2015-05-05 19:50:09 -04:00
tcp_yeah.c
tunnel4.c
udp.c	udp: fix dst races with multicast early demux	2015-08-03 22:16:50 -07:00
udp_diag.c	sock_diag: specify info_size per inet protocol	2015-06-15 19:49:22 -07:00
udp_impl.h
udp_offload.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
udp_tunnel.c	net: Modify sk_alloc to not reference count the netns of kernel sockets.	2015-05-11 10:50:18 -04:00
udplite.c
xfrm4_input.c	netfilter: Pass socket pointer down through okfn().	2015-04-07 15:25:55 -04:00
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c	netfilter: Pass socket pointer down through okfn().	2015-04-07 15:25:55 -04:00
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c