Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp335677ybt; Wed, 8 Jul 2020 00:54:05 -0700 (PDT) X-Google-Smtp-Source: ABdhPJygl1bUDhiIdWcxxAedSR02OYaihx4c69X6nyoHHCd1F9Er+mCJ2b8x5bk1mxqBXOo1AAEB X-Received: by 2002:aa7:c714:: with SMTP id i20mr66596560edq.215.1594194845078; Wed, 08 Jul 2020 00:54:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1594194845; cv=none; d=google.com; s=arc-20160816; b=I+8ykledeGfOH2Sg/mnTQXf+q77+RPeR+BbtYqygbYdbi8NQR4nBn47uGbsM6mJgrN ZT5JhGAIV8TEHTfKWgCVOjVzacVQ4b/0gh+LEcLl9YVC6biR5l95n/iIJZpc30wFHvBA XNeVHKzfFNy4D77UjxJlT0QJ33q9LxbTZUn3Mwj8PWhM1w2QId1rfvDVNj5to2Z+4UDi W545dtpUXLSkN6jKB2lpHOPZ6Rnlp9VBHaaCKfpX7eUPrHESZvaoQBEcIb+8KwIAduE7 fLMgKwJWOzhCh4r41ghSQfgRN9kMJXviy8zXDoFrvpSMB+MVtEweSDej0YKD6RQV6U8V U8bA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=dwIbEq+676g2dPSNVvMsDgeKxt+G488gZva6Lhp0YHk=; b=GGGqqFrGfrSmMWoNqDa9T6yPUP3a49Ur3sBgPp877FEQ1lcxYbKdiZN1xJRJFZzeN8 tbuU01746+hghcuXcOn8me7P9FthKSea9nqvV8W2z/b94y1tmbt/TLefiiPGGOzQURz2 f3KtFOYgeDN/TN/oGK0PFu6PFtju/Sd9n8rrCwSqovWu7rPOIxHsu/kBKGc6vaAHoBT7 u99fwP23jfd2z8EWX/2iMGMT7pehd64N8ljEZrnfx0dgw34BtgZECIvonxd/EP7Vtj4z TFKbaMHgjv83EywhSmFAEwNj/48CCV2heLIuYrHo+fdaEutmKrUneUU9d5C0Yvawhp+u rl7g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id x13si15370993ejb.488.2020.07.08.00.53.42; Wed, 08 Jul 2020 00:54:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726868AbgGHHoV (ORCPT + 99 others); Wed, 8 Jul 2020 03:44:21 -0400 Received: from verein.lst.de ([213.95.11.211]:34049 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725787AbgGHHoV (ORCPT ); Wed, 8 Jul 2020 03:44:21 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 6A6CD68AFE; Wed, 8 Jul 2020 09:44:18 +0200 (CEST) Date: Wed, 8 Jul 2020 09:44:18 +0200 From: Christoph Hellwig To: =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= Cc: Christoph Hellwig , Magnus Karlsson , Jonathan Lemon , iommu@lists.linux-foundation.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: add an API to check if a streamming mapping needs sync calls Message-ID: <20200708074418.GA6815@lst.de> References: <20200629130359.2690853-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 29, 2020 at 03:39:01PM +0200, Bj?rn T?pel wrote: > On 2020-06-29 15:03, Christoph Hellwig wrote: >> Hi all, >> >> this series lifts the somewhat hacky checks in the XSK code if a DMA >> streaming mapping needs dma_sync_single_for_{device,cpu} calls to the >> DMA API. >> > > Thanks a lot for working on, and fixing this, Christoph! > > I took the series for a spin, and there are (obviously) no performance > regressions. > > Would the patches go through the net/bpf trees or somewhere else? Where did this end up? I still don't see it in Linus' tree and this is getting urgent now.