Arjun Roy 18fb76ed53 net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy. ... When TCP receive zerocopy does not successfully map the entire requested space, it outputs a 'hint' that the caller should recvmsg(). Augment zerocopy to accept a user buffer that it tries to copy this hint into - if it is possible to copy the entire hint, it will do so. This elides a recvmsg() call for received traffic that isn't exactly page-aligned in size. This was tested with RPC-style traffic of arbitrary sizes. Normally, each received message required at least one getsockopt() call, and one recvmsg() call for the remaining unaligned data. With this change, almost all of the recvmsg() calls are eliminated, leading to a savings of about 25%-50% in number of system calls for RPC-style workloads. Signed-off-by: Arjun Roy <arjunroy@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2020-12-04 13:40:52 -08:00
..
6lowpan
9p	net: 9p: Fix kerneldoc warnings of missing parameters etc	2020-11-02 12:25:52 -08:00
802
8021q	net: vlan: Fixed signedness in vlan_group_prealloc_vid()	2020-09-28 00:51:39 -07:00
appletalk	net: appletalk: fix kerneldoc warnings	2020-10-30 11:48:17 -07:00
atm	atm: nicstar: Replace in_interrupt() usage	2020-11-18 16:43:55 -08:00
ax25	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-07-25 17:49:04 -07:00
batman-adv	batman-adv: Don't always reallocate the fragmentation skb head	2020-11-27 08:02:55 +01:00
bluetooth	Bluetooth: Replace zero-length array with flexible-array member	2020-10-29 17:22:59 -05:00
bpf	bpf: fix raw_tp test run in preempt kernel	2020-09-30 08:34:08 -07:00
bpfilter	Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"	2020-10-15 12:33:24 -07:00
bridge	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-03 15:44:09 -08:00
caif	caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE	2020-09-05 15:57:05 -07:00
can	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
ceph	libceph: clear con->out_msg on Policy::stateful_server faults	2020-10-12 15:29:27 +02:00
core	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-12-04 07:48:12 -08:00
dcb	net: dcb: Fix kerneldoc warnings	2020-10-30 11:59:54 -07:00
dccp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
decnet	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
dns_resolver
dsa	net: dsa: tag_hellcreek: Cleanup includes	2020-11-23 16:57:21 -08:00
ethernet	net: datagram: fix some kernel-doc markups	2020-11-17 14:15:03 -08:00
ethtool	Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-12 16:54:48 -08:00
hsr	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
ieee802154	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
ife
ipv4	net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy.	2020-12-04 13:40:52 -08:00
ipv6	seg6: add VRF support for SRv6 End.DT6 behavior	2020-12-04 13:30:51 -08:00
iucv	net/af_iucv: set correct sk_protocol for child sockets	2020-11-21 14:43:45 -08:00
kcm	net: pass a sockptr_t into ->setsockopt	2020-07-24 15:41:54 -07:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-08-02 01:02:12 -07:00
l2tp	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
l3mdev	net: l3mdev: Fix kerneldoc warning	2020-10-30 11:43:42 -07:00
lapb	net/lapb: fix t1 timer handling for LAPB_STATE_0	2020-11-27 17:22:51 -08:00
llc	net: llc: Fix kerneldoc warnings	2020-10-30 11:34:09 -07:00
mac80211	Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-19 19:08:46 -08:00
mac802154	net: mac802154: convert tasklets to use new tasklet_setup() API	2020-11-07 10:40:56 -08:00
mpls	mpls: drop skb's dst in mpls_forward()	2020-11-03 12:55:53 -08:00
mptcp	mptcp: emit tcp reset when a join request fails	2020-12-03 12:56:03 -08:00
ncsi	net/ncsi: Fix netlink registration	2020-11-12 17:00:13 -08:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-03 15:44:09 -08:00
netlabel	Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-19 19:08:46 -08:00
netlink	netlink: export policy in extended ACK	2020-10-09 20:22:32 -07:00
netrom	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
nfc	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
nsh
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-03 15:44:09 -08:00
packet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
phonet	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
psample	genetlink: move to smaller ops wherever possible	2020-10-02 19:11:11 -07:00
qrtr	wireless-drivers-next patches for v5.11	2020-12-04 10:56:37 -08:00
rds	RDMA: Add rdma_connect_locked()	2020-10-28 09:14:49 -03:00
rfkill	rfkill: Fix use-after-free in rfkill_resume()	2020-11-12 09:18:06 +01:00
rose	rose: Fix Null pointer dereference in rose_send_frame()	2020-11-20 10:04:58 -08:00
rxrpc	rxrpc: Ask the security class how much space to allow in a packet	2020-11-23 19:53:11 +00:00
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-03 15:44:09 -08:00
sctp	sctp: Fix some typo	2020-11-23 17:44:11 -08:00
smc	net/smc: Add support for obtaining SMCR device list	2020-12-01 17:56:13 -08:00
strparser
sunrpc	net: datagram: fix some kernel-doc markups	2020-11-17 14:15:03 -08:00
switchdev	net: switchdev: Fixed kerneldoc warning	2020-09-23 17:46:31 -07:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-03 15:44:09 -08:00
tls	net/tls: make sure tls offload sets salt_size	2020-12-01 17:51:30 -08:00
unix	networking changes for the 5.10 merge window	2020-10-15 18:42:13 -07:00
vmw_vsock	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
wireless	Some updates:	2020-11-13 12:03:22 -08:00
x25	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-03 15:44:09 -08:00
xdp	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-12-04 07:48:12 -08:00
xfrm	net: xfrm: use core API for updating/providing stats	2020-11-14 17:01:08 -08:00
compat.c	iov_iter: transparently handle compat iovecs in import_iovec	2020-10-03 00:02:13 -04:00
devres.c	net: devres: rename the release callback of devm_register_netdev()	2020-06-30 15:57:34 -07:00
Kconfig	wimax: move out to staging	2020-10-29 19:27:45 +01:00
Makefile	wimax: move out to staging	2020-10-29 19:27:45 +01:00
socket.c	net: don't include ethtool.h from netdevice.h	2020-11-23 17:27:04 -08:00
sysctl_net.c