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 6BF50C7EE23 for ; Thu, 8 Jun 2023 07:59:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AA73910E205; Thu, 8 Jun 2023 07:59:34 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id ED27A10E205 for ; Thu, 8 Jun 2023 07:59:32 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 00A53649AF; Thu, 8 Jun 2023 07:59:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E548BC433D2; Thu, 8 Jun 2023 07:59:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686211171; bh=QZuWevEGbS7eH2QLlHDqrU/R3vNNbwBkMxJ4axuXrX0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dF3xz25m+LQkLdlwXOwbZZjt1/wv+xR4bFflH2QjCLC+7NriFigEBzeRodOtmVBhJ v2yYDfpCcf02TcZrie+aIln2HvEM9QmHJcxtTKElYUGlHKrf9CRezjgXJ9GKaYjbtg czaVrAG6gxS/9Ulo3AwVRZbPDlD6x9AfQYMDu23I= Date: Thu, 8 Jun 2023 09:59:28 +0200 From: Greg Kroah-Hartman To: Andrew Morton Subject: Re: [PATCH] mm: fix hugetlb page unmap count balance issue Message-ID: <2023060803-trailing-ladder-2d53@gregkh> References: <20230512072036.1027784-1-junxiao.chang@intel.com> <20230512232947.GA3927@monkey> <20230515170259.GA3848@monkey> <20230516223440.GA30624@monkey> <20230607120312.6da5cea7677ec1a3da35b92c@linux-foundation.org> <20230607205310.GA4122@monkey> <20230607140001.6685b0a058511f125a005da4@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230607140001.6685b0a058511f125a005da4@linux-foundation.org> 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: , Cc: mhocko@suse.com, jmarchan@redhat.com, Dongwon Kim , Junxiao Chang , muchun.song@linux.dev, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Vivek Kasireddy , linux-mm@kvack.org, James Houghton , Gerd Hoffmann , kirill.shutemov@linux.intel.com, Mike Kravetz Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Wed, Jun 07, 2023 at 02:00:01PM -0700, Andrew Morton wrote: > On Wed, 7 Jun 2023 13:53:10 -0700 Mike Kravetz wrote: > > > > > > > BUGs aren't good. Can we please find a way to push this along? > > > > > > Have we heard anything from any udmabuf people? > > > > > > > I have not heard anything. When this issue popped up, it took me by surprise. > > > > udmabuf maintainer (Gerd Hoffmann), the people who added hugetlb support and > > the list where udmabuf was developed (dri-devel@lists.freedesktop.org) have > > been on cc. > > Maybe Greg can suggest a way forward. I'm guessing that no one is using this code then, so why don't we just remove it entirely? thanks, greg k-h