kernel_optimize_test/net/rxrpc
David Howells 4790963ef4 rxrpc: Fix decision on when to generate an IDLE ACK
[ Upstream commit 9a3dedcf18096e8f7f22b8777d78c4acfdea1651 ]

Fix the decision on when to generate an IDLE ACK by keeping a count of the
number of packets we've received, but not yet soft-ACK'd, and the number of
packets we've processed, but not yet hard-ACK'd, rather than trying to keep
track of which DATA sequence numbers correspond to those points.

We then generate an ACK when either counter exceeds 2.  The counters are
both cleared when we transcribe the information into any sort of ACK packet
for transmission.  IDLE and DELAY ACKs are skipped if both counters are 0
(ie. no change).

Fixes: 805b21b929 ("rxrpc: Send an ACK after every few DATA packets we receive")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-09 10:21:12 +02:00
..
af_rxrpc.c
ar-internal.h rxrpc: Fix decision on when to generate an IDLE ACK 2022-06-09 10:21:12 +02:00
call_accept.c
call_event.c rxrpc: Don't try to resend the request if we're receiving the reply 2022-06-09 10:21:12 +02:00
call_object.c rxrpc: Fix call timer start racing with call destruction 2022-04-08 14:40:41 +02:00
conn_client.c rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle() 2021-12-08 09:03:25 +01:00
conn_event.c
conn_object.c rxrpc, afs: Fix selection of abort codes 2022-06-09 10:20:56 +02:00
conn_service.c
input.c rxrpc: Fix decision on when to generate an IDLE ACK 2022-06-09 10:21:12 +02:00
insecure.c
Kconfig
key.c
local_event.c
local_object.c
Makefile
misc.c
net_ns.c rxrpc: Restore removed timer deletion 2022-04-27 13:53:49 +02:00
output.c rxrpc: Fix decision on when to generate an IDLE ACK 2022-06-09 10:21:12 +02:00
peer_event.c
peer_object.c rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() 2021-12-08 09:03:25 +01:00
proc.c
protocol.h
recvmsg.c rxrpc: Fix decision on when to generate an IDLE ACK 2022-06-09 10:21:12 +02:00
rtt.c rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies() 2021-11-18 14:04:03 +01:00
rxkad.c
security.c
sendmsg.c rxrpc: Return an error to sendmsg if call failed 2022-06-09 10:20:56 +02:00
skbuff.c
sysctl.c rxrpc: Fix listen() setting the bar too high for the prealloc rings 2022-06-09 10:21:12 +02:00
utils.c