From patchwork Thu Apr 29 06:48:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gal Pressman X-Patchwork-Id: 12230517 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD70FC433ED for ; Thu, 29 Apr 2021 06:48:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 951FA61446 for ; Thu, 29 Apr 2021 06:48:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229904AbhD2GtH (ORCPT ); Thu, 29 Apr 2021 02:49:07 -0400 Received: from smtp-fw-9102.amazon.com ([207.171.184.29]:52972 "EHLO smtp-fw-9102.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229814AbhD2GtG (ORCPT ); Thu, 29 Apr 2021 02:49:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1619678901; x=1651214901; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=+WtZzAwLavzB27rMq3LYfPTGCPhD5apFvOZYljfj/Z8=; b=CSKVjEm2RChtmRdq18W85pRAizAohCAEkleKeyPpEceJbAbmXXfmKKa0 2yyt0+nIVUQFjAdWvj+VgAyA6iadLBds0tO0ZTlj5AQHmw9DCsNYeFY6s hfExis2SjqGjDN3NevtNKcakXSH4m85z4/KdRUWkh1mcxC69XtjQdKucG g=; X-IronPort-AV: E=Sophos;i="5.82,258,1613433600"; d="scan'208";a="131706885" Received: from pdx4-co-svc-p1-lb2-vlan2.amazon.com (HELO email-inbound-relay-1a-821c648d.us-east-1.amazon.com) ([10.25.36.210]) by smtp-border-fw-9102.sea19.amazon.com with ESMTP; 29 Apr 2021 06:48:21 +0000 Received: from EX13D13EUB002.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan3.iad.amazon.com [10.40.163.38]) by email-inbound-relay-1a-821c648d.us-east-1.amazon.com (Postfix) with ESMTPS id 74F98A2126; Thu, 29 Apr 2021 06:48:17 +0000 (UTC) Received: from EX13MTAUWA001.ant.amazon.com (10.43.160.58) by EX13D13EUB002.ant.amazon.com (10.43.166.205) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 29 Apr 2021 06:48:16 +0000 Received: from 8c85908914bf.ant.amazon.com.com (10.85.98.110) by mail-relay.amazon.com (10.43.160.118) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 29 Apr 2021 06:48:12 +0000 From: Gal Pressman To: David Ahern CC: , , Yossi Leybovich , Alexander Matushevsky , Leon Romanovsky , Jason Gunthorpe , Gal Pressman Subject: [PATCH iproute2-next v2 0/2] Add copy-on-fork to get sys command Date: Thu, 29 Apr 2021 09:48:01 +0300 Message-ID: <20210429064803.58458-1-galpress@amazon.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This is the userspace part for the new copy-on-fork attribute added to the get sys netlink command. The new attribute indicates that the kernel copies DMA pages on fork, hence fork support through madvise and MADV_DONTFORK is not needed. Kernel series was merged: https://lore.kernel.org/linux-rdma/20210418121025.66849-1-galpress@amazon.com/ Changelog - v1->v2: https://lore.kernel.org/linux-rdma/20210428114231.96944-1-galpress@amazon.com/ * Rebase kernel headers * Print attributes on the same line * Simplify if statement Thanks Gal Pressman (2): rdma: update uapi headers rdma: Add copy-on-fork to get sys command rdma/include/uapi/rdma/rdma_netlink.h | 3 +++ rdma/sys.c | 11 ++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-)