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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 357711062871 for ; Wed, 11 Mar 2026 12:06:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8DA9510E8EF; Wed, 11 Mar 2026 12:06:51 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; secure) header.d=ziepe.ca header.i=@ziepe.ca header.b="I2oAEli5"; dkim-atps=neutral Received: from mail-qv1-f49.google.com (mail-qv1-f49.google.com [209.85.219.49]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2D26410E8EF for ; Wed, 11 Mar 2026 12:06:51 +0000 (UTC) Received: by mail-qv1-f49.google.com with SMTP id 6a1803df08f44-89a0d53f3d1so98145216d6.3 for ; Wed, 11 Mar 2026 05:06:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1773230810; x=1773835610; darn=lists.freedesktop.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=5ZXmtH045hjysMA/sKvjaPzLvB8ln7AQNBNr7xSrgrM=; b=I2oAEli54nUkMhCaWzQkVcTsceYbT88k6UWohLJXJxDiGEv+Cp9y0rVuj/VO/SOkll QFVpdDocaig+1GroBs8ojqD7pUY091uOAmsOSfroPQgZ+zsk3j8XMIKQmngo5tyEwK3a vmGc4JzEcSVH97m3De2sBwy9NMSg2HWr7SeIIa+N/2rbG5iEc/+zlTSlEagRVnyZnszM QlgZbqs133FAFuwdThbzP7mjVxUIS5iX1pMuNAHwdm9i63L5fO2vKWcPf3KjuQsx9c94 YPC+zdKGJa2tx/Np4PFdX9u9unDiUA9t5X4+F/4htOdsxHpaW4LspfR6h7J5cmibdjjJ uGNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773230810; x=1773835610; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5ZXmtH045hjysMA/sKvjaPzLvB8ln7AQNBNr7xSrgrM=; b=KBv8FZSfws9JGKXPpMqSaf0TjG7dQXpVNefuYEa9UbfOM3Oqcs2aoM14+O/ewAQSwB +JlWrF4uljQ31PzI+nXWSHVdZbl99gOuf/CnySQrIpu5rlhIY7drJ/GfTnKe11qW1om9 0yuKrxUiE3ySPp1vMpnjmjsXDOtSz18YVMAJm+hKPDolMd0K97DsjwgV0Qq1C+i446K7 G0Ujh7BJndm8FRXIf3LHD/EAypqWtUQ9ZZrGReQ9RHbsiVLUiEojtO0AfCBylwxxcTBA KDo9o7Vl/PEZQIseGtCrtTKsdqJtm1jpb3GxXZBKRi9BaDOhiIQEQnpBwz6J0XfLqqQ5 Gsdw== X-Forwarded-Encrypted: i=1; AJvYcCX5hwlrTVfTSOidyKWXPclGv1j+dNrNCADPCA6XhJkoxO6BSKlQ2jcFCvHYmbq65/wvd75J1jSto9w=@lists.freedesktop.org X-Gm-Message-State: AOJu0YzsPlaSS2GHDeNo/cbsPVFi3EINsA9Mqrl7rD4/y75E/zzfCJNm XOboRrkNqhyF42TEa44720z9WJF8TT39J7GVprU6oC9fdwU9qiWw5nMnSsdil0fyJCQ= X-Gm-Gg: ATEYQzy2z9oE6hsUPOdEfKncxjEyG7D9mCwIQYJ4l25oWCpf+d98tIAXK3XW4jFBJeY e+GLGA5owNjLgke5T2nBXgrklm6+dA8wcx4+7iB+VHuATMfx9fnNpVC77ypdl/ZYz93waGfueaj 01som/gGEIc+JLHq3K5PHoyRmy8BdvtB5Z96FlCGb6U3uEmJz/FKtpMw85v8w1xpMmm7Y9JXU0/ 1zq+CCA5IkEsY9IM3ZH81ZDGMzA9gKEEG3qJgq4xiGgS5YBY799TXQjRF8q97I9CWCcVsryVsGX er3df98aGPpv5oBacvUjdohj1kIsaW8Ar5JB5uGFaLB42r8UMGVS/Fr56EX7L2LIzJ+bqTA9XVs ykpjbGMq4+VIA0zu+s9q87o+yDocme3bEGLozTQzaL9VdG4aOVz9ZisOL5F5WxO8QjLXBdlpR6d 4zRh+jH1dc0R8gfXfbrlr9A0qLGkuKsO9SId4+feqU/kb7mKpS/DPBsz1zs7ie5i32d8H995oez IY2EJyO X-Received: by 2002:a05:6214:c68:b0:89a:18bc:2b32 with SMTP id 6a1803df08f44-89a66a85f91mr27777226d6.37.1773230810200; Wed, 11 Mar 2026 05:06:50 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-162-112-119.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.162.112.119]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-89a65cfd520sm12610946d6.36.2026.03.11.05.06.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2026 05:06:49 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1w0IKu-000000069ke-42RA; Wed, 11 Mar 2026 09:06:48 -0300 Date: Wed, 11 Mar 2026 09:06:48 -0300 From: Jason Gunthorpe To: "Kasireddy, Vivek" Cc: Julian Orth , Andrew Morton , "Deak, Imre" , Sakari Ailus , "linux-kernel@vger.kernel.org" , Gerd Hoffmann , Sumit Semwal , Christian =?utf-8?B?S8O2bmln?= , "dri-devel@lists.freedesktop.org" , "linux-media@vger.kernel.org" , "linaro-mm-sig@lists.linaro.org" Subject: Re: [PATCH] lib/scatterlist: fix sg_page_count and sg_dma_page_count Message-ID: <20260311120648.GV1687929@ziepe.ca> References: <20260308-scatterlist-v1-1-39c4566b0bba@gmail.com> <20260308180826.GG1687929@ziepe.ca> <20260310125953.GS1687929@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Wed, Mar 11, 2026 at 06:53:51AM +0000, Kasireddy, Vivek wrote: > So, given the current situation, what is the right thing to do? > Should we take your patch that brings back the pages array and treat it as > a temporary fix until equivalent folio based APIs are available? IMHO, yes. It saves memory, increases performance, fixes the bug and uses the APIs properly. Jason