From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9252D3FCD for ; Wed, 22 Sep 2021 17:27:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1632331622; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=fwtV10F6Py72ZM1WtfrnrYAsIb+mcQlspU3tfvAl9EE=; b=UasAaLhXoo/LPI6h3dKTtTqaYawE/wroSQknuX5uYKkbjX5l0Vko5yimDOBlyrrx40YjzU 8C/QjqRZ8Z2aPc4gXCcgj0Ie+h9obeX7I6B7ayhTdzy6pcNtl3sn1xAFfWBkorqv7zEn3k vwlITZID7q92JibE3NcZIhsasSLQwVs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-283-86WGX-j7NPyIE0eR8gqo5g-1; Wed, 22 Sep 2021 13:26:59 -0400 X-MC-Unique: 86WGX-j7NPyIE0eR8gqo5g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BEC00802CBA; Wed, 22 Sep 2021 17:26:57 +0000 (UTC) Received: from gerbillo.redhat.com (unknown [10.39.193.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id 484B919724; Wed, 22 Sep 2021 17:26:56 +0000 (UTC) From: Paolo Abeni To: netdev@vger.kernel.org Cc: "David S. Miller" , Jakub Kicinski , Mat Martineau , Eric Dumazet , mptcp@lists.linux.dev Subject: [PATCH net-next 0/4] net: remove sk skb caches Date: Wed, 22 Sep 2021 19:26:39 +0200 Message-Id: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Eric noted we would be better off reverting the sk skb caches. MPTCP relies on such a feature, so we need a little refactor of the MPTCP tx path before the mentioned revert. The first patch exposes additional TCP helpers. The 2nd patch changes the MPTCP code to do locally the whole skb allocation and updating, so it does not rely anymore on core TCP helpers for that nor the sk skb cache. As a side effect, we can make the tcp_build_frag helper static. Finally, we can pull Eric's revert. RFC -> v1: - drop driver specific patch - no more needed after helper rename - rename skb_entail -> tcp_skb_entail (Eric) - preserve the tcp_build_frag helpwe, just make it static (Eric) --- Note: that this series touches some LoC also modifed by this -net patch: https://patchwork.kernel.org/project/netdevbpf/patch/706c577fde04fbb8285c8fc078a2c6d0a4bf9564.1632309038.git.pabeni@redhat.com/ so the whole series is based on top of the above and will apply with no conflict after such patch will land into net-next Eric Dumazet (1): tcp: remove sk_{tr}x_skb_cache Paolo Abeni (3): tcp: expose the tcp_mark_push() and tcp_skb_entail() helpers mptcp: stop relying on tcp_tx_skb_cache tcp: make tcp_build_frag() static Documentation/networking/ip-sysctl.rst | 8 -- include/net/sock.h | 19 ---- include/net/tcp.h | 4 +- net/ipv4/af_inet.c | 4 - net/ipv4/sysctl_net_ipv4.c | 12 --- net/ipv4/tcp.c | 38 ++----- net/ipv4/tcp_ipv4.c | 6 -- net/ipv6/tcp_ipv6.c | 6 -- net/mptcp/protocol.c | 137 ++++++++++++++----------- 9 files changed, 85 insertions(+), 149 deletions(-) -- 2.26.3