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 E7743C4332F for ; Fri, 18 Nov 2022 22:18:07 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 83E378E0001; Fri, 18 Nov 2022 17:18:07 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 7EEC86B0075; Fri, 18 Nov 2022 17:18:07 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6B5E38E0001; Fri, 18 Nov 2022 17:18:07 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 5BABC6B0074 for ; Fri, 18 Nov 2022 17:18:07 -0500 (EST) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 34998AAD3E for ; Fri, 18 Nov 2022 22:18:07 +0000 (UTC) X-FDA: 80147977014.10.3487E2D Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf30.hostedemail.com (Postfix) with ESMTP id CCDCA8000D for ; Fri, 18 Nov 2022 22:18:06 +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 E4E24627A9; Fri, 18 Nov 2022 22:18:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EA697C433C1; Fri, 18 Nov 2022 22:18:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1668809885; bh=slW2ogEqumDMzzq+8YFq44ZMJ620yTKr2Pm0S8NYYBg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=PKv1mpULr2rC4+rfI64mFP53/+uvfmNxRfJp2DTJankBknbtaOInaGS39Q5GmnB0S 71LxwvLitMNh3putuBNDoayfv5EafUYHBrRDMvAhjnexsRa0mQJz7n/f0l54s7jTtC 1/76FMcGo0jvlM47uBARcCYE+qy/4cH++Eb2ZM8E= Date: Fri, 18 Nov 2022 14:18:04 -0800 From: Andrew Morton To: Jiaqi Yan Cc: "Luck, Tony" , "shy828301@gmail.com" , "kirill.shutemov@linux.intel.com" , "kirill@shutemov.name" , "tongtiangen@huawei.com" , "naoya.horiguchi@nec.com" , "linmiaohe@huawei.com" , "linux-mm@kvack.org" , "osalvador@suse.de" Subject: Re: [PATCH v7 1/2] mm/khugepaged: recover from poisoned anonymous memory Message-Id: <20221118141804.c77bdba99f82c38c667edef0@linux-foundation.org> In-Reply-To: References: <20221118013157.1333622-1-jiaqiyan@google.com> <20221118013157.1333622-2-jiaqiyan@google.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1668809886; a=rsa-sha256; cv=none; b=6tn/NxtkFk3ozMzbNbaLYj5ARV7TZjbgU/x0zjTbLp6ODPTHqIo00cQoUJY2iXV9EQJ5Vq qkfHl48UuPDDxDEoChw6RDL9ee7z9qIEMfySotU2yW2yOURbErVGnMsDbhhT9zhNpJ/EFQ k/dkoWT7fT3K6tAOet9adsOytuQzi10= ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=PKv1mpUL; dmarc=none; spf=pass (imf30.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1668809886; 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:dkim-signature; bh=8HZdTok7PA4Nxi3qADILXOsKz+zMhP55KtRrdyX3gYs=; b=A+vnDJ+e0AfMSAq88UBd18lGQHLtdQxgsUISaiNuvAMbxnzWtzj0G4YhfPzMEmlqGWXFqE sMnmGHyx3xJpCMIzRC9fwYKp8FmSwIxy6/MNHgFDkZ0+s8ms24w/sZlKsFr9tm+43rZLRp BMIGrdFOWBD04Tdl+8vfbzguWQTYXXI= X-Stat-Signature: 6juehys99973etc5efj8uigqy3ecrgzg X-Rspamd-Queue-Id: CCDCA8000D Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=PKv1mpUL; dmarc=none; spf=pass (imf30.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1668809886-804260 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 Fri, 18 Nov 2022 11:38:22 -0800 Jiaqi Yan wrote: > > I had copied this function from an earlier version of your patch, but > > there was a suggestion that copy_mc_user_highpage() would be a > > more consistent name with other copy code that can handle machine > > checks. There was also an upstream change to copy_highpage() > > that needed to be reflected here. > > Thanks for pointing this out, Tony. Is it the kmsan_copy_page_meta(to, > from) call in copy_highpage()? I will make sure to include it in > copy_highpage_mc(). If there is more, can you provide lore pointers? > Please prepare this series against the mm-unstable branch of //git.kernel.org/pub/scm/linux/kernel/git/akpm/mm. That way you'll pick up Tony's change and anything else which might affect this work.