From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBD73277007 for ; Fri, 6 Mar 2026 18:46:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772822816; cv=none; b=rFlmAoNu6QByLKIdxCunrl6sVRBR1r5ODktbHuXgErj+oiqgzDZApt1MVC3HYE74ws/3OblZP+IQvrr3P/rIKQajfpRGdDxKXuMSex1NsdGUzF1fsiCJ0lokbm9fZz2zIrtfXAN8jvpF0LLiq9RDqhUCvflezcfYtNxYzHnUvnY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772822816; c=relaxed/simple; bh=PiOiTxwu+V3eF7EiUFmFXpAm0yNkrKv5X9NQ0CStils=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=iI4YAYq8N5RGvUAv8R/LHl0eCkYniCpheczT+ni2BOFAKiaSKCCOPlQMQ58RrIsPGPmMPAnH8F5IdowcKZtiIh2Hpu4WrCvee9Md4tqJYTiwmmabPCmQL23n1TpDFQ2L9wQQEea38CrH9Ch3hGCDD/6O0MgH6aXRHJ2NYA0xhG0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org 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) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspamout05 X-Rspamd-Queue-Id: EBE142002D X-Stat-Signature: m4h7sgi1ze7gsbg4pecuoqs1z71s4krd X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX19XeTY18053BYONN5zueFhZ4yOewcE2IrU= X-HE-Tag: 1772822808-477565 X-HE-Meta: U2FsdGVkX19F2+vb9/CMCWyUkj2/n46eNB9KkKwTUxxNKrxjkKN+9hbD1BOaYNCKYUqF9+f1Rk6470+2wu9uLxjJFgkTIEXJQVvugL+8AM2yJ+xh3QPV5SavxmpJgjCp/juBIyXd/oIb+o9kTbatcpvLjX3k7vg4JHxbfZziUl2+CLIcKAyWcBwuZuVXrDY3oRkoHjkva91cDdanqN2F1uX4MX+BwzRNK6T4V5pmcNC3kLsiBWnTDziJSNv6AuUTYEXGZAJUEHpcRydHEEVYxts3Ki9S/43krrNE/yTN7vrDPsM158GG8TCpN+6rEu0XCGnc9d2kwJW0NUbDzSpfZfgAsepzag9HO/nOwv1ID71TDoHmrhLzrTPVUBKepUxx 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