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 567E1FCC05E for ; Fri, 6 Mar 2026 18:46:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8031E6B008C; Fri, 6 Mar 2026 13:46:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 7B0946B0092; Fri, 6 Mar 2026 13:46:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6BD516B0095; Fri, 6 Mar 2026 13:46:56 -0500 (EST) 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 58C476B008C for ; Fri, 6 Mar 2026 13:46:56 -0500 (EST) Received: from smtpin15.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id EDE3A1C914 for ; Fri, 6 Mar 2026 18:46:55 +0000 (UTC) X-FDA: 84516519990.15.20C61E7 Received: from relay.hostedemail.com (unirelay05 [10.200.18.68]) by imf28.hostedemail.com (Postfix) with ESMTP id 369DDC0005 for ; Fri, 6 Mar 2026 18:46:54 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1772822814; 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; bh=uZB2TUjhQ89IgPB6kx5kyxnRYTXzc3TQMzBkHq1J3AE=; b=rxLIo05LJoz5GYLwHA0TKj1SYaBsQuQ26a56Fwt02xTy4A0isBFCI96Wpz0ZOCh/uwjmbb EnQp2f3lirNvii38eUQSQtBwMS8oX/Hv40xR3R20jVwvolkK+pwe6uH0Y+9IH4kWVHwV3N naIAPpu5BFqLTIeUUalrevIPYZ1nmZ8= ARC-Authentication-Results: i=1; imf28.hostedemail.com; none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1772822814; a=rsa-sha256; cv=none; b=A8FLWsbUuD10KZkDRTkQXD+hXRhA8eT6Mxv9t/Izcfi4iJS2DV1ss4Oq0wgm8dc4/z5VC9 6kMnB/CfduqdYFG6SiPHdodUV+9YS/z3yTdKEkoxw5+8T2jE7w2f/GoHZHPrUb8Vj6aXc4 8l7aszLpU7leluXUjtugcxb+QgXlp6w= Received: from omf20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 43F3359D81; Fri, 6 Mar 2026 18:46:52 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf20.hostedemail.com (Postfix) with ESMTPA id EBE142002D; Fri, 6 Mar 2026 18:46:48 +0000 (UTC) Date: Fri, 6 Mar 2026 13:46:49 -0500 From: Steven Rostedt To: Andrew Morton Cc: Vlastimil Babka , Dmitry Ilvokhin , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, Peter Zijlstra Subject: Re: [PATCH 1/8] mm: use zone lock guard in reserve_highatomic_pageblock() Message-ID: <20260306134649.72d925ba@gandalf.local.home> In-Reply-To: <20260306103307.43d12be7d32b3f3b06f7bb55@linux-foundation.org> References: <20260306095336.a79fcc869a7f6d2b2e97501b@linux-foundation.org> <20260306130052.7da8eab3@gandalf.local.home> <20260306103307.43d12be7d32b3f3b06f7bb55@linux-foundation.org> X-Mailer: Claws Mail 3.20.0git84 (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-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX19XeTY18053BYONN5zueFhZ4yOewcE2IrU= X-HE-Meta: U2FsdGVkX19F2+vb9/CMCWyUkj2/n46eNB9KkKwTUxxNKrxjkKN+9hbD1BOaYNCKYUqF9+f1Rk6470+2wu9uLxjJFgkTIEXJQVvugL+8AM2yJ+xh3QPV5SavxmpJgjCp/juBIyXd/oIb+o9kTbatcpvLjX3k7vg4JHxbfZziUl2+CLIcKAyWcBwuZuVXrDY3oRkoHjkva91cDdanqN2F1uX4MX+BwzRNK6T4V5pmcNC3kLsiBWnTDziJSNv6AuUTYEXGZAJUEHpcRydHEEVYxts3Ki9S/43krrNE/yTN7vrDPsM158GG8TCpN+6rEu0XCGnc9d2kwJW0NUbDzSpfZfgAsepzag9HO/nOwv1ID71TDoHmrhLzrTPVUBKepUxx X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 369DDC0005 X-Stat-Signature: m4h7sgi1ze7gsbg4pecuoqs1z71s4krd X-Rspam-User: X-HE-Tag-Orig: 1772822808-477565 X-HE-Tag: 1772822814-592849 X-HE-Meta: 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 Fc9w8nTl BJsd05P6hGnWG8htk26WDiqD4/K/WFaYeA1gUbqj+ECSsKyI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, 6 Mar 2026 10:33:07 -0800 Andrew Morton wrote: > I'm not enjoying the ides of penalizing billions of machines all of the > time in order to make life a little easier for the developers. Seems > like a poor tradeoff. But if there's a bug due to not being as maintainable, that too will affect billions of machines! To me, that balances the tradeoff. -- Steve