linux/net
Chuck Lever b6c2bfea09 svcrdma: Relieve contention on sc_send_lock.
/proc/lock_stat indicates the the sc_send_lock is heavily
contended when the server is under load from a single client.

To address this, convert the send_ctxt free list to an llist.
Returning an item to the send_ctxt cache is now waitless, which
reduces the instruction path length in the single-threaded Send
handler (svc_rdma_wc_send).

The goal is to enable the ib_comp_wq worker to handle a higher
RPC/RDMA Send completion rate given the same CPU resources. This
change reduces CPU utilization of Send completion by 2-3% on my
server.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-By: Tom Talpey <tom@talpey.com>
2021-08-17 11:47:53 -04:00
..
6lowpan 6lowpan: Fix some typos in nhc_udp.c 2021-03-24 17:52:11 -07:00
9p 9p/trans_virtio: Fix spelling mistakes 2021-06-02 14:01:55 -07:00
802 net/802/garp: fix memleak in garp_request_join() 2021-07-01 11:21:57 -07:00
8021q net: vlan: pass thru all GSO_SOFTWARE in hw_enc_features 2021-06-18 11:58:03 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
atm atm: Use list_for_each_entry() to simplify code in resources.c 2021-06-10 14:08:09 -07:00
ax25 net/ax25: Delete obsolete TODO file 2021-03-30 16:54:50 -07:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
bluetooth Bluetooth: defer cleanup of resources in hci_unregister_dev() 2021-08-05 12:15:24 -07:00
bpf bpf: Add missing bpf_read_[un]lock_trace() for syscall program 2021-08-10 10:10:49 +02:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-06-25 13:13:50 +02:00
bridge net: bridge: fix memleak in br_add_if() 2021-08-10 13:25:14 -07:00
caif net: fix uninit-value in caif_seqpkt_sendmsg 2021-07-15 11:08:33 -07:00
can can: j1939: j1939_xtp_rx_dat_one(): fix rxtimer value between consecutive TP.DT to 750ms 2021-07-24 19:02:24 +02:00
ceph Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
core net: linkwatch: fix failure to restore device state across suspend/resume 2021-08-11 14:43:16 -07:00
dcb net: dcb: Return the correct errno code 2021-06-01 17:01:33 -07:00
dccp dccp: add do-while-0 stubs for dccp_pr_debug macros 2021-08-09 10:00:02 +01:00
decnet net: decnet: Fix sleeping inside in af_decnet 2021-07-16 14:06:16 -07:00
dns_resolver
dsa net: switchdev: zero-initialize struct switchdev_notifier_fdb_info emitted by drivers towards the bridge 2021-08-10 13:22:57 -07:00
ethernet of: net: pass the dst buffer to of_get_mac_address() 2021-04-13 14:35:02 -07:00
ethtool net: sock: extend SO_TIMESTAMPING for PHC binding 2021-07-01 13:08:18 -07:00
hsr net: hsr: don't check sequence number if tag removal is offloaded 2021-06-16 12:13:01 -07:00
ieee802154 net: Fix memory leak in ieee802154_raw_deliver 2021-08-10 12:18:10 +02:00
ife
ipv4 net: igmp: increase size of mr_ifc_count 2021-08-11 15:54:10 -07:00
ipv6 ipv6: decrease hop limit counter in ip6_forward() 2021-07-23 16:40:41 +01:00
iucv s390: iucv: Avoid field over-reading memcpy() 2021-07-01 15:54:01 -07:00
kcm net: sock: introduce sk_error_report 2021-06-29 11:28:21 -07:00
key net: Remove unnecessary variables 2021-05-26 07:03:39 +02:00
l2tp l2tp: Fix spelling mistakes 2021-06-07 14:08:30 -07:00
l3mdev l3mdev: Correct function names in the kerneldoc comments 2021-03-28 17:56:55 -07:00
lapb net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c 2021-06-08 16:31:25 -07:00
llc net: llc: fix skb_over_panic 2021-07-27 13:05:56 +01:00
mac80211 mac80211: fix enabling 4-address mode on a sta vif after assoc 2021-07-23 10:34:13 +02:00
mac802154 net: mac802154: Fix general protection fault 2021-04-06 22:42:16 +02:00
mpls mpls: Remove redundant assignment to err 2021-04-27 14:17:00 -07:00
mptcp mptcp: drop unused rcu member in mptcp_pm_addr_entry 2021-08-03 14:26:46 -07:00
ncsi net/ncsi: add dummy response handler for Intel boards 2021-07-08 14:16:39 -07:00
netfilter netfilter: nfnetlink_hook: translate inet ingress to netdev 2021-08-06 17:07:41 +02:00
netlabel netlabel: Fix memory leak in netlbl_mgmt_add_common 2021-06-15 11:19:04 -07:00
netlink net: Use nlmsg_unicast() instead of netlink_unicast() 2021-07-13 09:28:29 -07:00
netrom netrom: Decrease sock refcount when sock timers expire 2021-07-18 09:48:59 -07:00
nfc TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
nsh
openvswitch net: openvswitch: fix kernel-doc warnings in flow.c 2021-08-09 15:37:35 -07:00
packet Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
phonet
psample psample: Add additional metadata attributes 2021-03-14 15:00:43 -07:00
qrtr net: really fix the build... 2021-08-03 11:14:03 +01:00
rds Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
rfkill Another set of updates, all over the map: 2021-04-20 16:44:04 -07:00
rose net: rose: Fix fall-through warnings for Clang 2021-03-10 12:45:15 -08:00
rxrpc Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
sched net: sched: act_mirred: Reset ct info when mirror/redirect skb 2021-08-09 10:58:47 +01:00
sctp sctp: move the active_key update after sh_keys is added 2021-08-03 11:43:43 +01:00
smc net/smc: Correct smc link connection counter in case of smc client 2021-08-09 10:46:59 +01:00
strparser net: sock: introduce sk_error_report 2021-06-29 11:28:21 -07:00
sunrpc svcrdma: Relieve contention on sc_send_lock. 2021-08-17 11:47:53 -04:00
switchdev net: switchdev: add a context void pointer to struct switchdev_notifier_info 2021-06-28 14:09:03 -07:00
tipc Revert "tipc: Return the correct errno code" 2021-08-12 09:44:31 +01:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-29 15:45:27 -07:00
unix af_unix: fix garbage collect vs MSG_PEEK 2021-07-28 10:18:00 -07:00
vmw_vsock vsock/virtio: avoid potential deadlock when vsock device remove 2021-08-12 10:57:27 -07:00
wireless cfg80211: Fix possible memory leak in function cfg80211_bss_update 2021-07-23 10:38:18 +02:00
x25 net: x25: Use list_for_each_entry() to simplify code in x25_route.c 2021-06-10 14:08:09 -07:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-29 15:45:27 -07:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2021-08-04 10:45:41 +01:00
compat.c net: Return the correct errno code 2021-06-03 15:13:56 -07:00
devres.c net: devres: Correct a grammatical error 2021-06-11 12:55:28 -07:00
Kconfig bpf, kconfig: Add consolidated menu entry for bpf with core options 2021-05-11 13:56:16 -07:00
Makefile
socket.c net: socket: support hardware timestamp conversion to PHC bound 2021-07-01 13:08:18 -07:00
sysctl_net.c net: Ensure net namespace isolation of sysctls 2021-04-12 13:27:11 -07:00