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{ "id": 816372, "url": "http://patchwork.ozlabs.org/api/covers/816372/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/cover/cover.1505926196.git.pabeni@redhat.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<cover.1505926196.git.pabeni@redhat.com>", "list_archive_url": null, "date": "2017-09-20T16:54:00", "name": "[net-next,0/5] net: introduce noref sk", "submitter": { "id": 67312, "url": "http://patchwork.ozlabs.org/api/people/67312/?format=api", "name": "Paolo Abeni", "email": "pabeni@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/cover/cover.1505926196.git.pabeni@redhat.com/mbox/", "series": [ { "id": 4180, "url": "http://patchwork.ozlabs.org/api/series/4180/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=4180", "date": "2017-09-20T16:54:00", "name": "net: introduce noref sk", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/4180/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/816372/comments/", "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ext-mx07.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com", "ext-mx07.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=pabeni@redhat.com" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xy5Xj2QdJz9sP1\n\tfor <patchwork-incoming@ozlabs.org>;\n\tThu, 21 Sep 2017 02:58:13 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751365AbdITQ6K (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tWed, 20 Sep 2017 12:58:10 -0400", "from mx1.redhat.com ([209.132.183.28]:52526 \"EHLO mx1.redhat.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1750938AbdITQ6J (ORCPT <rfc822;netdev@vger.kernel.org>);\n\tWed, 20 Sep 2017 12:58:09 -0400", "from smtp.corp.redhat.com\n\t(int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 39B91C0578F5;\n\tWed, 20 Sep 2017 16:58:09 +0000 (UTC)", "from localhost.mxp.redhat.com (unknown [10.32.181.195])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id D18F360241;\n\tWed, 20 Sep 2017 16:58:07 +0000 (UTC)" ], "DMARC-Filter": "OpenDMARC Filter v1.3.2 mx1.redhat.com 39B91C0578F5", "From": "Paolo Abeni <pabeni@redhat.com>", "To": "netdev@vger.kernel.org", "Cc": "\"David S. Miller\" <davem@davemloft.net>,\n\tPablo Neira Ayuso <pablo@netfilter.org>, Florian Westphal <fw@strlen.de>,\n\tEric Dumazet <edumazet@google.com>,\n\tHannes Frederic Sowa <hannes@stressinduktion.org>", "Subject": "[PATCH net-next 0/5] net: introduce noref sk", "Date": "Wed, 20 Sep 2017 18:54:00 +0200", "Message-Id": "<cover.1505926196.git.pabeni@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.12", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.31]);\n\tWed, 20 Sep 2017 16:58:09 +0000 (UTC)", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "This series introduce the infrastructure to store inside the skb a socket\npointer without carrying a refcount to the socket.\n\nSuch infrastructure is then used in the network receive path - and\nspecifically the early demux operation.\n\nThis allows the UDP early demux to perform a full lookup for UDP sockets,\nwith many benefits:\n\n- the UDP early demux code is now much simpler\n- the early demux does not hit any performance penalties in case of UDP hash\n table collision - previously the early demux performed a partial, unsuccesful,\n lookup\n- early demux is now operational also for unconnected sockets.\n\nThis infrastrcture will be used in follow-up series to allow dst caching for\nunconnected UDP sockets, and than to extend the same features to TCP listening\nsockets.\n\nPaolo Abeni (5):\n net: add support for noref skb->sk\n net: allow early demux to fetch noref socket\n udp: do not touch socket refcount in early demux\n net: add simple socket-like dst cache helpers\n udp: perform full socket lookup in early demux\n\n include/linux/skbuff.h | 30 +++++++++++++++\n include/linux/udp.h | 2 +\n include/net/dst.h | 12 ++++++\n net/core/dst.c | 16 ++++++++\n net/core/sock.c | 6 +++\n net/ipv4/ip_input.c | 12 ++++++\n net/ipv4/ipmr.c | 18 +++++++--\n net/ipv4/netfilter/nf_dup_ipv4.c | 3 ++\n net/ipv4/udp.c | 80 ++++++++++++++++------------------------\n net/ipv6/ip6_input.c | 7 +++-\n net/ipv6/netfilter/nf_dup_ipv6.c | 3 ++\n net/ipv6/udp.c | 67 ++++++++++-----------------------\n net/netfilter/nf_queue.c | 3 ++\n 13 files changed, 159 insertions(+), 100 deletions(-)" }