From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57A2BEE57DE for ; Fri, 8 Sep 2023 08:00:43 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B82066B00A4; Fri, 8 Sep 2023 04:00:42 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B0B9A6B00A5; Fri, 8 Sep 2023 04:00:42 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9AB226B00A6; Fri, 8 Sep 2023 04:00:42 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 87D646B00A4 for ; Fri, 8 Sep 2023 04:00:42 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id F205B1203BE for ; Fri, 8 Sep 2023 08:00:41 +0000 (UTC) X-FDA: 81212683482.25.6AA0011 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by imf07.hostedemail.com (Postfix) with ESMTP id CE21A4000C for ; Fri, 8 Sep 2023 08:00:39 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=none; dmarc=none; spf=none (imf07.hostedemail.com: domain of hch@lst.de has no SPF policy when checking 213.95.11.211) smtp.mailfrom=hch@lst.de ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1694160040; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WvMQ9Nx7n20UfqL0ghZGA6+u93ElZ8b4PyYrdvDXTG0=; b=GiW+beDzR1TvMsgKFj1Dfk76nUF5393hD8yLydyNHm1L9xV3HRR+Lt/nnP7JI65GmHj84l UTHdXGPq1nHqfudkBoSrcxCXb5JN5Z8gfbItvgGX4G69uU/GJj6Zdxm+7ZEggrYNPyk3dn Pisw6v3fJtAeZSZRH8gDfjOfy1Qre+c= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=none; dmarc=none; spf=none (imf07.hostedemail.com: domain of hch@lst.de has no SPF policy when checking 213.95.11.211) smtp.mailfrom=hch@lst.de ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1694160040; a=rsa-sha256; cv=none; b=X2v/qFL15OonpkLV9oV3pRgTmKnL7Dui6z4XjOJydouCwJnAQrDP0z6q3HgradVMxkDpyv L2Jxq/nPVqbpBvKWEoKRjtIWriRdhCMAZgL662YfvRSzWx5eIq6gWkI03HVgQwRWolelcV lCiWMLPkhfCT+9bf9LPXChzgSGIFfjs= Received: by verein.lst.de (Postfix, from userid 2407) id 131A86732D; Fri, 8 Sep 2023 10:00:32 +0200 (CEST) Date: Fri, 8 Sep 2023 10:00:31 +0200 From: Christoph Hellwig To: Petr =?utf-8?B?VGVzYcWZw61r?= Cc: Jonathan Corbet , Petr Tesarik , Stefano Stabellini , Russell King , Thomas Bogendoerfer , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , "H. Peter Anvin" , Greg Kroah-Hartman , "Rafael J. Wysocki" , Juergen Gross , Oleksandr Tyshchenko , Christoph Hellwig , Marek Szyprowski , Robin Murphy , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Petr Tesarik , Andy Shevchenko , Hans de Goede , James Seo , James Clark , Kees Cook , "moderated list:XEN HYPERVISOR ARM" , "moderated list:ARM PORT" , open list , "open list:MIPS" , "open list:XEN SWIOTLB SUBSYSTEM" , "open list:SLAB ALLOCATOR" , Roberto Sassu Subject: Re: [PATCH v7 9/9] swiotlb: search the software IO TLB only if the device makes use of it Message-ID: <20230908080031.GA7848@lst.de> References: <87a5uz3ob8.fsf@meer.lwn.net> <87il8wr348.fsf@meer.lwn.net> <20230907131223.587c1a88@meshulam.tesarici.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20230907131223.587c1a88@meshulam.tesarici.cz> User-Agent: Mutt/1.5.17 (2007-11-01) X-Rspam-User: X-Stat-Signature: 8ne57oxg8rmr6sei4pi536614gucdu69 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: CE21A4000C X-HE-Tag: 1694160039-707951 X-HE-Meta: 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 1PoDmxun WaT4T+yAGWQ1/nnMJf09Coia3uNPqW6ZArIBDsOyT8bliTZKkFusG4l5DVKDYZ0IDoSxaRs7P3AaT0ob2t7DAYExKuoBrj+4movqAzLniXLqA4swwsNH7pDmWVTWEDOF2a+e1avhueaoCpiN3qGm0EOT1mldbFz1IOKWPKSG680q7wXoqy6w7LURLemIkDkMMFMOy5VyeYR252rISK2Yin3fn9LxMDElZH7izJmMd2gHHqv+GZv7UzpfXQLZEFfONC8bJ X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Sep 07, 2023 at 01:12:23PM +0200, Petr Tesařík wrote: > Hi all, > > sorry for my late reply; I've been away from my work setup for a > month... Please take a look at: https://lore.kernel.org/linux-iommu/20230905064441.127588-1-hch@lst.de/T/#u