linux-kernel - [PATCH net-next 0/4] rxrpc: Miscellaneous changes

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Date:   Wed,  8 Feb 2023 10:27:46 +0000
From:   David Howells <dhowells@...hat.com>
To:     netdev@...r.kernel.org
Cc:     David Howells <dhowells@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Marc Dionne <marc.dionne@...istor.com>,
        linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 0/4] rxrpc: Miscellaneous changes

Here are some miscellaneous changes for rxrpc:

 (1) Use consume_skb() rather than kfree_skb_reason().

 (2) Fix unnecessary waking when poking and already-poked call.

 (3) Add ack.rwind to the rxrpc_tx_ack tracepoint as this indicates how
     many incoming DATA packets we're telling the peer that we are
     currently willing to accept on this call.

 (4) Reduce duplicate ACK transmission.  We send ACKs to let the peer know
     that we're increasing the receive window (ack.rwind) as we consume
     packets locally.  Normal ACK transmission is triggered in three places
     and that leads to duplicates being sent.

The patches are tagged here:

	git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git tags/rxrpc-next-20230208

And can be found on this branch:

	http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=rxrpc-next

David

David Howells (4):
  rxrpc: Use consume_skb() rather than kfree_skb_reason()
  rxrpc: Fix overwaking on call poking
  rxrpc: Trace ack.rwind
  rxrpc: Reduce unnecessary ack transmission

 include/trace/events/rxrpc.h | 11 +++++++----
 net/rxrpc/call_object.c      |  6 ++++--
 net/rxrpc/conn_event.c       |  2 +-
 net/rxrpc/output.c           | 10 +++++++---
 net/rxrpc/recvmsg.c          |  2 +-
 net/rxrpc/skbuff.c           |  4 ++--
 6 files changed, 22 insertions(+), 13 deletions(-)