Paolo Abeni f796feabb9 udp: add local "peek offset enabled" flag ... We want to re-organize the struct sock layout. The sk_peek_off field location is problematic, as most protocols want it in the RX read area, while UDP wants it on a cacheline different from sk_receive_queue. Create a local (inside udp_sock) copy of the 'peek offset is enabled' flag and place it inside the same cacheline of reader_queue. Check such flag before reading sk_peek_off. This will save potential false sharing and cache misses in the fast-path. Tested under UDP flood with small packets. The struct sock layout update causes a 4% performance drop, and this patch restores completely the original tput. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/67ab679c15fbf49fa05b3ffe05d91c47ab84f147.1708426665.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-02-21 17:05:01 -08:00
..
6lowpan	net: fill in MODULE_DESCRIPTION()s for 6LoWPAN	2024-02-09 14:12:01 -08:00
9p	net: 9p: avoid freeing uninit memory in p9pdu_vreadf	2023-12-13 05:44:30 +09:00
802
8021q	net: vlan: constify the struct device_type usage	2024-02-21 09:45:23 +00:00
appletalk	net: remove SOCK_DEBUG leftovers	2023-12-26 20:31:01 +00:00
atm	net: fill in MODULE_DESCRIPTION()s for mpoa	2024-02-09 14:12:01 -08:00
ax25
batman-adv	This cleanup patchset includes the following patches:	2024-02-02 12:44:16 +00:00
bluetooth	TTY/Serial changes for 6.8-rc1	2024-01-18 11:37:24 -08:00
bpf	bpf, net: switch to dynamic registration	2024-01-23 17:12:46 -08:00
bridge	net: bridge: constify the struct device_type usage	2024-02-21 09:45:23 +00:00
caif	net: fill in MODULE_DESCRIPTION()s for CAIF	2024-01-05 08:06:35 -08:00
can	linux-can-next-for-6.9-20240220	2024-02-20 15:32:45 +01:00
ceph	libceph: just wait for more data to be available on the socket	2024-02-07 14:43:29 +01:00
core	net: fix pointer check in skb_pp_cow_data routine	2024-02-20 18:26:25 -08:00
dcb
dccp	net: dccp: Simplify the allocation of slab caches in dccp_ackvec_init	2024-02-02 12:19:26 +00:00
devlink	devlink: avoid potential loop in devlink_rel_nested_in_notify_work()	2024-02-06 18:45:16 -08:00
dns_resolver	Networking changes for 6.8.	2024-01-11 10:07:29 -08:00
dsa	net: dsa: constify the struct device_type usage	2024-02-21 09:45:22 +00:00
ethernet
ethtool	ethtool: do not use rtnl in ethnl_default_dumpit()	2024-02-08 19:08:51 -08:00
handshake	net/handshake: Fix handshake_req_destroy_test1	2024-02-08 18:32:29 -08:00
hsr	net: hsr: constify the struct device_type usage	2024-02-21 09:45:23 +00:00
ieee802154	net: fill in MODULE_DESCRIPTION()s for ieee802154	2024-01-29 12:12:51 +00:00
ife	net: sched: ife: fix potential use-after-free	2023-12-15 10:50:18 +00:00
ipv4	udp: add local "peek offset enabled" flag	2024-02-21 17:05:01 -08:00
ipv6	udp: add local "peek offset enabled" flag	2024-02-21 17:05:01 -08:00
iucv	net/iucv: fix virtual vs physical address confusion	2024-02-16 08:45:17 +00:00
kcm	net: kcm: Simplify the allocation of slab caches	2024-02-21 11:28:57 +00:00
key	net: fill in MODULE_DESCRIPTION()s for af_key	2024-02-09 14:12:01 -08:00
l2tp	net: l2tp: constify the struct device_type usage	2024-02-21 09:45:23 +00:00
l3mdev
lapb
llc	llc: call sock_orphan() at release time	2024-01-30 13:49:09 +01:00
mac80211	Merge wireless into wireless-next	2024-02-15 09:56:42 +01:00
mac802154	mac802154: Avoid new associations while disassociating	2023-12-15 11:14:57 +01:00
mctp
mpls
mptcp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
ncsi	net/ncsi: Add NC-SI 1.2 Get MC MAC Address command	2023-11-18 15:00:51 +00:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
netlabel	netlabel: cleanup struct netlbl_lsm_catmap	2024-02-07 12:38:30 +00:00
netlink	Merge branch 'for-thermal-genetlink-family-bind-unbind-callbacks'	2024-02-15 17:49:24 -08:00
netrom
nfc	nfc: hci: Save a few bytes of memory when registering a 'nfc_llc' engine	2024-02-06 15:36:06 +01:00
nsh
openvswitch	net: openvswitch: limit the number of recursions from action sets	2024-02-09 12:54:38 -08:00
packet	sock_diag: add module pointer to "struct sock_diag_handler"	2024-01-23 15:13:54 +01:00
phonet
psample	genetlink: Use internal flags for multicast groups	2023-12-29 08:43:59 +00:00
qrtr	net: qrtr: ns: Return 0 if server port is not present	2024-01-01 18:41:29 +00:00
rds	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
rfkill	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-12-21 22:17:23 +01:00
rose	net/rose: fix races in rose_kill_by_device()	2023-12-15 11:59:53 +00:00
rxrpc	rxrpc: Fix counting of new acks and nacks	2024-02-05 12:34:07 +00:00
sched	net: sched: Annotate struct tc_pedit with __counted_by	2024-02-19 10:58:24 +00:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
smc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
strparser
sunrpc	NFSv4.1: Assign the right value for initval and retries for rpc timeout	2024-01-29 13:39:48 -05:00
switchdev
tipc	tipc: Cleanup tipc_nl_bearer_add() error paths	2024-02-15 13:18:19 +01:00
tls	net: tls: fix returned read length with async decrypt	2024-02-10 21:38:19 +00:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
vmw_vsock	sock_diag: add module pointer to "struct sock_diag_handler"	2024-01-23 15:13:54 +01:00
wireless	wifi: cfg80211: use IEEE80211_MAX_MESH_ID_LEN appropriately	2024-02-15 10:59:08 +01:00
x25	net: remove SOCK_DEBUG leftovers	2023-12-26 20:31:01 +00:00
xdp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-01-25 14:20:08 -08:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-02-15 16:20:04 -08:00
compat.c	file: stop exposing receive_fd_user()	2023-12-12 14:24:14 +01:00
devres.c
Kconfig	net: bql: allow the config to be disabled	2024-02-18 10:19:21 +00:00
Kconfig.debug
Makefile	af_unix: Remove CONFIG_UNIX_SCM.	2024-01-31 16:41:16 -08:00
socket.c	vfs-6.8.iov_iter	2024-01-08 11:43:04 -08:00
sysctl_net.c