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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 896D3CAC597 for ; Tue, 16 Sep 2025 02:54:45 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9389D8E0005; Mon, 15 Sep 2025 22:54:44 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 90FD58E0001; Mon, 15 Sep 2025 22:54:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 84C4A8E0005; Mon, 15 Sep 2025 22:54:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 75A098E0001 for ; Mon, 15 Sep 2025 22:54:44 -0400 (EDT) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id C87CC115DC5 for ; Tue, 16 Sep 2025 02:54:43 +0000 (UTC) X-FDA: 83893595646.14.68B6CAF Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf08.hostedemail.com (Postfix) with ESMTP id 2F31A160003 for ; Tue, 16 Sep 2025 02:54:42 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b="gCV8RQ/Y"; spf=pass (imf08.hostedemail.com: domain of akpm@linux-foundation.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1757991282; 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=hyRv6GvNN5E47xO6kev0uGq9pOvWqu+tilWAnb5EeTg=; b=VITcRWc2jju5H/XrKu6EDS7b2k1XXpbnAlSn0bN6S56rpLaGdRa/LcrNpHh5AhrmnDsnW3 ZkX5zPCwo6z2O1ymB4/eAYx26/844sXUDAZzoZyVbRorieHctQ5qzWy51CPIfHDxZBxtZN A+3Afy3f7nyvqLf95EADjmYFlbVU+Ak= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b="gCV8RQ/Y"; spf=pass (imf08.hostedemail.com: domain of akpm@linux-foundation.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1757991282; a=rsa-sha256; cv=none; b=L+f6LMjti+0ggieUoz9dTKOySloduTgoa8LTi5J14859Ft6lwVVUeiW9Gb8wmwIf0PzkfG BaHgwyRU6wx9SzDLZetPj1B3DrSA3lS0pdLs+yu4MwvZWvcR9N4V1gZCjZ3wGK9NBI900M l4E+u5wpo+bmsLnaZbJhJFEPUumc3S0= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 2B88E60054; Tue, 16 Sep 2025 02:54:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75183C4CEF1; Tue, 16 Sep 2025 02:54:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1757991280; bh=FSXamsz51GyhPZeRXCy10g3ECsbExx4flqf03FwCSJw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=gCV8RQ/YFvjq4gwgXdRs5tHtMrlKZR1F12Wni3SnQxHcz6NXQQUai8J4rQW2WJD/K /g9eftk7RH0teioVEnlOL4yYCa6ydmVpXO2YTb+LF2dZQX4Uxc3OfQ9DuKSpmT1ep6 hCLQIG/U2XbLcdc0ZX8s1o6Nb9Ki4Ggmzciqvpwo= Date: Mon, 15 Sep 2025 19:54:39 -0700 From: Andrew Morton To: Joe Perches Cc: Donet Tom , David Hildenbrand , Ritesh Harjani , Xu Xin , Chengming Zhou , Wei Yang , Aboorva Devarajan , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Giorgi Tchankvetadze , stable@vger.kernel.org Subject: Re: [PATCH v2 1/3] mm/ksm: Fix incorrect KSM counter handling in mm_struct during fork Message-Id: <20250915195439.fa6d52c3f3bbe6380ad65660@linux-foundation.org> In-Reply-To: <8d7be334af3944f990b56c80a70b7691763c3af8.camel@perches.com> References: <4044e7623953d9f4c240d0308cf0b2fe769ee553.1757946863.git.donettom@linux.ibm.com> <20250915164248.788601c4dc614913081ec7d7@linux-foundation.org> <8d7be334af3944f990b56c80a70b7691763c3af8.camel@perches.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 2F31A160003 X-Stat-Signature: 4u1jcbe79rfs1m5reuzob8utkuoopcmj X-HE-Tag: 1757991282-228959 X-HE-Meta: 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 8ZrFKiod eCI50oYLClqnlw4NOUYvz51oAAGzqJxTZdlCsMTO9b6dkGbIOpwxu3/Aw+A8bp+NKBSUrF7mmOBf2Ulo5HHBzmjNGKA2fDqDVCYPFOfHqR4PtxLbG2i/4riahhfshhd++xwATS+D9Ip6LzdlUlgiB81KSZiVEZ3p/k2d0V3uNx7VdRIsGysD0bOZJ6HnWsUlguN1oETVRvUdUwPsmh5wup2VYx5aD9RwPvuCgKcV7qtamjicfyxbyEQ4hLKrompgB9KP9suy065+NIvrMgQ8RNUC/SPEOyOdgjrr92ObFbmkwb9DCh2I1ClzQ0NPkYPG5eSXnA8m/lwIvpoMFa+ZYQTj6V7BNoRcYvQiVrrBpo7vk/8cxYYbvS7KcyUj9ubVcU5XwgxL/XV5lGCCvndoR3o+qYLoU0DHtX+KGg7X5DkTF9T85DCa9G0ktySVI4mmj9XdRzJDF4M5DtcZHPTC7B0eCWlxsel7KT475 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: List-Subscribe: List-Unsubscribe: On Mon, 15 Sep 2025 19:14:47 -0700 Joe Perches wrote: > On Mon, 2025-09-15 at 16:42 -0700, Andrew Morton wrote: > > On Mon, 15 Sep 2025 20:33:04 +0530 Donet Tom wrote: > [] > > > Fixes: 7609385337a4 ("ksm: count ksm merging pages for each process") > > > > Linux-v5.19 > > > > > Fixes: cb4df4cae4f2 ("ksm: count allocated ksm rmap_items for each process") > > > > Linux-v6.1 > > > > > Fixes: e2942062e01d ("ksm: count all zero pages placed by KSM") > > > > Linux-v6.10 > > > > > cc: stable@vger.kernel.org # v6.6 > > > > So how was Linux-v6.6 arrived at? > [] > > (Cc Joe. Should checkpatch say something about this)? > > Probably not. Parsing variants of versions seems, umm, difficult. I was thinking simpler. If the Fixes: count exceeds one, ask "wtf are you asking of the -stable maintainers"?