From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (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 A749A427A1B for ; Tue, 20 Jan 2026 16:38:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768927095; cv=none; b=IldxNfx+wDp+kcfjT2EPuXhG5CYO5UivzKSjOo4mtvf/jhPEcgEvXHGr0wa6tZvS6ps6aukZ0qu+Tv1pXsfPzmFl/i8PiRjUjyNUIe8MUkoXZ8TUlbpVUCDS/0RexTZyXFRwhxtsIek80m+eBbMezggVb7mYmWb9OMtS7OQrnBw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768927095; c=relaxed/simple; bh=d92gjm1kHcv0g9suHfMprDgu2pJjNZCStAm/TToiN38=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OAOoA5Qxktn1HmdFkCP4JvHMlYlmycN3u3Yqqu8ZooxO28ITimoe59VjaXAVsKb9N7Txa+6UEq0mO+Lkq+LQD+KPQ8xK889cWl6m66eMh7F9JrzmBESKS/zCgc0RT4XxKWdKJcQOyvYm43wnFSAxydnIKQxCOJ/9N8VjGPHNEUA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=PBWERaFQ; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="PBWERaFQ" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 4727940E016A; Tue, 20 Jan 2026 16:38:07 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 36TSnPP8K0ms; Tue, 20 Jan 2026 16:38:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1768927082; bh=uG4dIlLRpoYNu59KzrWbVXbz+28v2pwQWXocJCHxcGU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PBWERaFQMr6cKuGty4zYXIhhxjMKDnwQddtlF/wpLPFF5vdC++MNsspxzFlz4m6YH RY2nwPq8I3sF0i+ZYnluJqfZ6wCdAKzS7sbQWmzwVq/x9u43sLF+i77xZGgGdHpxm6 Z68weMpkA/aHzCJ+3NyUpgdytUceiAZ0Z73ZMqppLBQUIxteeM6UNcnTyaUUum+QvZ KZjj5CJo1vQSLD9xMSnfKHVWQu34UJeEet/Jd2cPN1gNOcTtBowAtXsJ4gobG+xKz0 m2/7zT/8b6UFIoky/76IgVQRPh7YBprxNgn/Psl1OjGIavERK8ZaZ5ZZxBJQo6uo6A SwWZOp2oS1kDWjBZyAFapbwrQk2vRhIvrypLQ3HKexV2+bP2zY3vrudJuJyBf2RrhX HhSQvf8gn/2O0hjAyQvEV0HC9pTPAJFyciq2bCG4u2WjXhoC6f+xXKUKqB1E8bqoDk Chvr2sltLOME0au65KEHMUqsxfpX6BZmBP2ElIpUFZlCwfRyaLZDxbi5Mfzg1/u3Ty jYIyRQGzF7mgy0BfWqGqfaU+OFtazvYrCf5R24zjYBUWPKA1V/5rGtFoZKqTtlTFoU GIWLQxIVfhiuB331pN6fONH5AE+k8HWx7zm8fyM38sky/kKjTvV0H9wKIpZsEck/H9 tbwdUVU2DCQuISPjw/tCubFY= Received: from zn.tnic (pd953023b.dip0.t-ipconnect.de [217.83.2.59]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with UTF8SMTPSA id 8019740E0194; Tue, 20 Jan 2026 16:37:34 +0000 (UTC) Date: Tue, 20 Jan 2026 17:37:28 +0100 From: Borislav Petkov To: Brendan Jackman Cc: Dave Hansen , Andy Lutomirski , Lorenzo Stoakes , "Liam R. Howlett" , Suren Baghdasaryan , Michal Hocko , Johannes Weiner , Zi Yan , Axel Rasmussen , Yuanchu Xie , Roman Gushchin , peterz@infradead.org, dave.hansen@linux.intel.com, mingo@redhat.com, tglx@linutronix.de, akpm@linux-foundation.org, david@redhat.com, derkling@google.com, junaids@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, reijiw@google.com, rientjes@google.com, rppt@kernel.org, vbabka@suse.cz, x86@kernel.org, Yosry Ahmed Subject: Re: [PATCH 05/21] x86/mm/pat: mirror direct map changes to ASI Message-ID: <20260120163728.GDaW-vSLGY1P_E0DqS@fat_crate.local> References: <20250924-b4-asi-page-alloc-v1-0-2d861768041f@google.com> <20250924-b4-asi-page-alloc-v1-5-2d861768041f@google.com> <08338619-6aa1-4905-bdf8-bf1a90857307@intel.com> <19e5012a-3c58-4696-9e4e-39e2b7d2b5af@intel.com> 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=utf-8 Content-Disposition: inline In-Reply-To: On Thu, Oct 02, 2025 at 05:08:59PM +0000, Brendan Jackman wrote: > OK, then it probably just sounds wrong to me because I'm steeped in the > current jargon. For v2 I'll try just dropping "[un]restricted". So AFAIU, we have two address spaces - the full one - which has *everything* mapped in and the limited one, with things removed from it. Right? So calling the unrestricted "the full address space" makes sense to me. I.e., it has *everything* in it. And then there's the subset of the full address space which has holes in it. Looking at Merriam Webster, it suggests those antonyms to "complete": partial, incomplete, reduced, abbreviated, diminished. Yahaa, they all make sense. "partial address space" sounds good to me. "Reduced" even better. So having the full and the reduced address space would make the nomenclature very easy, IMO. Thoughts? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette