From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 21ABE2E041A; Fri, 21 Nov 2025 19:55:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763754953; cv=none; b=BniwARLWfqQXusplPtyudHW+fFvmU6PFq4x8AGyjfoURnYWuectnn7N1b69OTazzfxpAyYnS+ajXfQins44K5z0DItt8Vg1E0WE1NtBhx86s0nn+g6i2gMTHjvDOufwBPR+V0Vrs50Kzkjq7Djnwnm1Wa2zPcUGE0pUxPcZfNxQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763754953; c=relaxed/simple; bh=ZJ2imUn9Mco77w7/pdIgQXc4oF4zUj7dqNGxM1kbtZk=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=olP/WuvwwLqPyMrg9KInwffs2ffsJuruA50IGOcyUT3VQVo9M5AapzSg26qjDuziaDPtIoi/D6QWGZzVF2D1tWQ4sI9PPur+tYOFHV6Hwlo4BBQlV4JuzQhrbPy3V6otxbXbpFTnL8RncIMiIupVCh8xxtY9QOumFRn/yA0TqGM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=1gsWB9CG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="1gsWB9CG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01299C4CEF1; Fri, 21 Nov 2025 19:55:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1763754952; bh=ZJ2imUn9Mco77w7/pdIgQXc4oF4zUj7dqNGxM1kbtZk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=1gsWB9CGDheDWsUEWoqPq+K2Og2h9mfP0NvvauyDN66X4mW929BZ9UKFHwPQXSfGy Gg/r2nAupA9992Bws/OHN7TpqhJa/fZ+kEl8obZ1dppTp69FiQnjzoYkWIqOioVhAF 8wQM/kxEwdZcv6ztDi7xcMyEi6B3+NUgFaO93Jbo= Date: Fri, 21 Nov 2025 11:55:50 -0800 From: Andrew Morton To: Lorenzo Stoakes Cc: Vlastimil Babka , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Sven Schnelle , Peter Xu , Alexander Viro , Christian Brauner , Jan Kara , Arnd Bergmann , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Muchun Song , Oscar Salvador , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Axel Rasmussen , Yuanchu Xie , Wei Xu , Kemeng Shi , Kairui Song , Nhat Pham , Baoquan He , Chris Li , SeongJae Park , Matthew Wilcox , Jason Gunthorpe , Leon Romanovsky , Xu Xin , Chengming Zhou , Jann Horn , Miaohe Lin , Naoya Horiguchi , Pedro Falcato , Pasha Tatashin , Rik van Riel , Harry Yoo , Hugh Dickins , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, damon@lists.linux.dev Subject: Re: [PATCH v3 07/16] mm: avoid unnecessary use of is_swap_pmd() Message-Id: <20251121115550.8a8f9b39189b215849ce165d@linux-foundation.org> In-Reply-To: <67c63cce-f1b8-48d3-83a6-6de1f2d86dda@lucifer.local> References: <8a1704b36a009c18032d5bea4cb68e71448fbbe5.1762812360.git.lorenzo.stoakes@oracle.com> <67c63cce-f1b8-48d3-83a6-6de1f2d86dda@lucifer.local> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 21 Nov 2025 19:25:46 +0000 Lorenzo Stoakes wrote: > > > To add to the confusion in this terminology we use is_swap_pmd() in an > > > inconsistent way similar to how is_swap_pte() was being used - sometimes > > > adopting the convention that pmd_none(), !pmd_present() implies PMD 'swap' > > > > !pmd_none() > > > > ? > > Yeah sorry this is a typo. > > Andrew, if it's easy to fix could you? a few hours ago ;) > If too late then never mind :) "too late" is a thing I try to avoid!