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 EEB23E6FE23 for ; Tue, 23 Dec 2025 16:54:39 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5EFE56B0005; Tue, 23 Dec 2025 11:54:39 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 59D5B6B0089; Tue, 23 Dec 2025 11:54:39 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4A9D66B008A; Tue, 23 Dec 2025 11:54:39 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 3B4496B0005 for ; Tue, 23 Dec 2025 11:54:39 -0500 (EST) Received: from smtpin11.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id DAAA8C101B for ; Tue, 23 Dec 2025 16:54:38 +0000 (UTC) X-FDA: 84251334636.11.84510B0 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf13.hostedemail.com (Postfix) with ESMTP id 0B2D920004 for ; Tue, 23 Dec 2025 16:54:36 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=y2uhOtTy; dmarc=none; spf=pass (imf13.hostedemail.com: domain of akpm@linux-foundation.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1766508877; a=rsa-sha256; cv=none; b=KYrrkLtnRw7t/KujkR9bQfKpE1FoMHgZswbqgVve/ztE5XVS5MoOpBH7RQH15Vo50txM3F A7xIJfiMoyoc/HahFU5hiW26j/kxPuAq2y9DDTfo257hi38UWsl4G5huDgIFy9Xdoxtp/x B0QjGd7kx09pljFPV4x4c8ls+HSQ74U= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=y2uhOtTy; dmarc=none; spf=pass (imf13.hostedemail.com: domain of akpm@linux-foundation.org designates 172.234.252.31 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=1766508877; 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=vonf8LqeLJwp9G0Ckr7Of+LnsMCBeDul1vYZDPZ2LVQ=; b=D8hnik70jJh+RdJgxz7aU2gPlNWyIbAkhDDgluvclFdMbP6BJW56C+iRdQHwbqVe0OE8R5 t3NCUxE18wdTfFfmTE/NZDFIGGjuRmOVD0EEQ4WZRwGSmJFArNG1/t3glGJxhlnT3+ojYH Jsw5fXg8rs/CQzGFmTLckkEhMZrC/kU= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id D345840A3D; Tue, 23 Dec 2025 16:54:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1558EC113D0; Tue, 23 Dec 2025 16:54:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1766508875; bh=YSvTCQaekcYuL9cT3nyDik7utEEmbDcrz5nvozNxXXU=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=y2uhOtTyCjTw1tPpgTeL42HMR7NDR8YOrZMmVeoReXhmp5EKVThfwCgm9ZMq2H10F oIzbBqYLLx4dJjMprtUcezIIPaEprCv7+Ivvq8DySDY/SkRr8lJUxxnEjv0nTy3DK7 vdoFrPcKrSwzR1BtpDgv8TYXz/1pAkkyi1dpscy0= Date: Tue, 23 Dec 2025 08:54:34 -0800 From: Andrew Morton To: Sasha Levin Cc: SeongJae Park , "David Hildenbrand (Red Hat)" , "Ritesh Harjani (IBM)" , Sourabh Jain , Borislav Petkov , Christophe Leroy , Heiko Carstens , Ingo Molnar , Madhavan Srinivasan , Michael Ellerman , Muchun Song , Oscar Salvador , Thomas Gleixner , Vasily Gorbik , linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, x86@kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6] mm/hugetlb: ignore hugepage kernel args if hugepages are unsupported Message-Id: <20251223085434.a6d6ae08c3aedf420908f404@linux-foundation.org> In-Reply-To: References: <20251221104907.032abf56c67f3e50c9c94e31@linux-foundation.org> <20251223013045.4579-1-sj@kernel.org> <20251222183055.88c3cc1f0705c1dc29c7f011@linux-foundation.org> 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-Rspamd-Queue-Id: 0B2D920004 X-Stat-Signature: uoiks5fb735c49q484bqd15tfa3t9giq X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1766508876-876801 X-HE-Meta: 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 Y7g0ygmX leHaexMNn9XUftJ2B7tSMsQhFP7pm39Uzo9FubSa2n3EoEHLS+1Q003adXzpVqw25BffGHMXoCneGHSP49O2kRgSDgthTF1dwDqMvXebXQmp1rg9dmG3IOPMjbqIDYO6ZyBeDAPJ8tZp1FlQIEaq0yqXShYcf5LQwDhDPEIelC+WvMgp2YYyQ441AiXYeTFIlav6rNvuZWrs4J3vUDK7jPidu2eRw1d5V3xjm7bKAPLQ0Iwdp5e9IjSfodSrNPf9p8CxP+EytpwFUUCy9dy8Bl2QZuVQmd/dQ1Zmw5O3xliHsiwBEmDfG8wPMnph3K7bTd0auveBTrHIy/QXayehJWCKcCg== 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 Tue, 23 Dec 2025 06:43:45 -0500 Sasha Levin wrote: > >> > Yes, -stable maintainers have been asked to only backport patches where > >> > the MM developers asked for that, with cc:stable. There may be > >> > slipups, but as far as I know this is working. > >> > > >> > I don't actually know how they determine which patches need this > >> > special treatment. Pathname? Signed-off-by:akpm? > >> > >> I guess it is pathname, based on ignore_list file [1] of stable-queue repo. > >> > >> [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/ignore_list#n16 > >> > > > >Oh, that's a bit sad. > > > >- other trees sometimes mess with mm/ and they probably aren't aware > > that they need an explicit cc:stable. > > > >- misses drivers/block/zram and probably various other things that > > the MM team maintains. > > > >Oh well, I guess simple mm/* coverage is good enough. But I do worry a > >little that useful fixes coming into mm/ via other trees without > >cc:stable will get missed. > > How should we improve the filter? mm/ AND signed off by akpm? I think just signed-off-by:akpm please. That way, mm fixes which come in via other trees without cc:stable get backported. Obviously we'd prefer that such patches get appropriate consideration by the MM developers but sometimes other-tree people aren't that cooperative. In this case it's better to backport the thing rather than missing a fix?