Alexander Duyck c73c3d9c49 tcp: Fix truesize accounting in tcp_try_coalesce ... This patch addresses several issues in the way we were tracking the truesize in tcp_try_coalesce. First it was using ksize which prevents us from having a 0 sized head frag and getting a usable result. To resolve that this patch uses the end pointer which is set based off either ksize, or the frag_size supplied in build_skb. This allows us to compute the original truesize of the entire buffer and remove that value leaving us with just what was added as pages. The second issue was the use of skb->len if there is a mergeable head frag. We should only need to remove the size of an data aligned sk_buff from our current skb->truesize to compute the delta for a buffer with a reused head. By using skb->len the value of truesize was being artificially reduced which means that head frags could use more memory than buffers using standard allocations. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-05-03 04:21:33 -04:00
..
netfilter	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
af_inet.c	sock: Introduce named constants for sk_reuse	2012-04-21 15:52:25 -04:00
ah4.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
arp.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
cipso_ipv4.c	ipv4: Convert call_rcu() to kfree_rcu(), drop opt_kfree_rcu()	2012-02-21 09:03:31 -08:00
datagram.c
devinet.c	net ipv4: Convert devinet to use register_net_sysctl	2012-04-20 21:22:30 -04:00
esp4.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
fib_frontend.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
fib_lookup.h
fib_rules.c	ipv4: Stop using NLA_PUT*().	2012-04-02 04:33:43 -04:00
fib_semantics.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
fib_trie.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
gre.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
icmp.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
igmp.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
inet_connection_sock.c	sock: Introduce named constants for sk_reuse	2012-04-21 15:52:25 -04:00
inet_diag.c	net: sock_diag_handler structs can be const	2012-04-25 20:46:59 -04:00
inet_fragment.c
inet_hashtables.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
inet_lro.c
inet_timewait_sock.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
inetpeer.c	route: Remove redirect_genid	2012-03-08 00:30:32 -08:00
ip_forward.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
ip_fragment.c	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
ip_gre.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
ip_input.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ip_options.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ip_output.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ip_sockglue.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ipcomp.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
ipconfig.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ipip.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
ipmr.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
Kconfig
Makefile
netfilter.c	net: Delete all remaining instances of ctl_path	2012-04-20 21:22:30 -04:00
ping.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
proc.c	tcp: reduce out_of_order memory use	2012-03-19 16:53:08 -04:00
protocol.c
raw.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
route.c	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
syncookies.c	tcp: fix syncookie regression	2012-03-11 15:52:12 -07:00
sysctl_net_ipv4.c	tcp: early retransmit	2012-05-02 20:56:10 -04:00
tcp_bic.c
tcp_cong.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
tcp_cubic.c
tcp_diag.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: Fix truesize accounting in tcp_try_coalesce	2012-05-03 04:21:33 -04:00
tcp_ipv4.c	tcp: sk_add_backlog() is too agressive for TCP	2012-04-23 22:28:28 -04:00
tcp_lp.c
tcp_memcontrol.c	Merge branch 'for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2012-03-20 18:11:21 -07:00
tcp_minisocks.c	tcp: early retransmit	2012-05-02 20:56:10 -04:00
tcp_output.c	tcp: early retransmit: delayed fast retransmit	2012-05-02 20:56:10 -04:00
tcp_probe.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
tcp_scalable.c
tcp_timer.c	tcp: early retransmit: delayed fast retransmit	2012-05-02 20:56:10 -04:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tcp.c	net: implement tcp coalescing in tcp_queue_rcv()	2012-05-02 21:11:11 -04:00
tunnel4.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
udp_diag.c
udp_impl.h	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
udp.c	net: add a limit parameter to sk_add_backlog()	2012-04-23 22:28:28 -04:00
udplite.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
xfrm4_input.c
xfrm4_mode_beet.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_output.c
xfrm4_policy.c	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
xfrm4_state.c
xfrm4_tunnel.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00