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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 28923CCA465 for ; Thu, 15 Oct 2026 16:10:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9EHIlQvSlTK/0g81lPvroV9NSML7thFDzuBCVIJrzb8=; b=3CZ++xHePBKt00 JDYEyRiEd5/O8NosRGo+8Gexwz75iysb0LaPgZL2+9Qhzb/NQ1s9d+gdXJPy8qE0OygEoaiWmj2w+ y3TZ4rAX0ZoLmmaEWzB/8Ck8WTgpYQk3v3ERqsmCB0QgIg5/KocgL+l1acOxoTsKAaSKW9iHpDRMh L0Q3h7GaseLzWdi57drR9CLX+mO1q5yE5tP+7rOxgzCH/llQ6rCQd3tsOP9DQycCFyyfSJD+E4TsE Q7dKVA8hsl1Xk+tpvc18Em0C5r9uC0CCSM3XrT4s0KgJFhrW9DLHbLE2vjrBlcB1iNC2ExY/TXP6o pP2Fas62UyvNKry818xQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xHO1t-00000000jXl-0xtY; Thu, 15 Oct 2026 16:10:05 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGax7-0000000CjnK-2WZY; Tue, 13 Oct 2026 11:45:57 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id AF67960A59; Tue, 13 Oct 2026 11:45:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7DD31F00893; Tue, 13 Oct 2026 11:45:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791891952; bh=zuSfDICaEiGsOUsuUUs/M8PT2xH5gVwuhSNYHaltNBM=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=WcbsB3jt6ggnUvGzUReaKgzEI8mDtTInytfY/4L0UY2EorEe9hphgicKzItvTX39t Nkvy8qOh6DKVrPbR5TjupziSaZgBvlcvCG2RK2XVAR40JpMRWs5Fnw3WxwN8wSQcSm e4Pa/CbDfrSNggneSmDwlGAvBdaa5OpY2Eb28vX1tjG+241iKbITOTrqylwnvqPLJf v4RTtDmN5pnh9VqNzHooU8Qhyjm3hlSSYraGaunuKyYvgkLudVqglMi2nhQG7J7WTg aJaagzot2j4wk7DRAQoe19+N65hUjPHU95de4mavPa6fMUPk9Di3NymEkazMnwOysp y3A1k4Y5PuPrw== Date: Tue, 13 Oct 2026 12:45:19 +0100 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonathan Corbet , Greg Kroah-Hartman , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Paul Moore , Stephen Smalley , Jaroslav Kysela , Takashi Iwai , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Kiryl Shutsemau , Doug Gilbert , "James E.J. Bottomley" , "Martin K. Petersen" , Simona Vetter , Helge Deller , Sebastian Reichel , John Hubbard , Peter Xu , Masami Hiramatsu , Oleg Nesterov , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Rik van Riel , Harry Yoo , Juri Lelli , Vincent Guittot , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Will Deacon , "Aneesh Kumar K.V" , Nick Piggin , Arnd Bergmann , Muchun Song , Oscar Salvador , "Matthew Wilcox (Oracle)" , Jan Kara , Marc Zyngier , Oliver Upton , Catalin Marinas , Madhavan Srinivasan , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , "David S. Miller" , Andreas Larsson , Alexander Viro , Christian Brauner , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Youngjun Park , Johannes Weiner , Qi Zheng , Shakeel Butt , Axel Rasmussen , Yuanchu Xie , Wei Xu , Chengming Zhou , Michal Hocko , Miklos Szeredi , Xu Xin , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-usb@vger.kernel.org, linux-rdma@vger.kernel.org, selinux@vger.kernel.org, linux-sound@vger.kernel.org, bpf@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-trace-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, fuse-devel@lists.linux.dev, Ihor Solodrai , Bert Karwatzki Subject: Re: [PATCH v5 34/38] mm: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around() Message-ID: References: <20261009-b4-mmap-prepare-vma-flag-sanify-v5-0-923b70125b1e@kernel.org> <20261009-b4-mmap-prepare-vma-flag-sanify-v5-34-923b70125b1e@kernel.org> <22dc04ac-c046-4baa-9bdf-a5ba07c0c0ca@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <22dc04ac-c046-4baa-9bdf-a5ba07c0c0ca@kernel.org> X-Mailman-Approved-At: Thu, 15 Oct 2026 09:06:21 -0700 X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, Oct 12, 2026 at 08:50:09PM +0200, David Hildenbrand (Arm) wrote: > On 10/9/26 20:04, Lorenzo Stoakes (ARM) wrote: > > diff --git a/mm/vmscan.c b/mm/vmscan.c > > index 3b318efa2916..7adffe8182b3 100644 > > --- a/mm/vmscan.c > > +++ b/mm/vmscan.c > > @@ -4418,8 +4418,8 @@ bool lru_gen_look_around(struct page_vma_mapped_walk *pvmw, unsigned int nr) > > if (spin_is_contended(pvmw->ptl)) > > return true; > > > > - /* exclude special VMAs containing anon pages from COW */ > > - if (vma->vm_flags & VM_SPECIAL) > > + /* exclude fixed and non-mm-managed VMAs containing anon pages from COW */ > > + if (!vma_is_mm_managed(vma) || vma_is_fixed_mapping(vma)) > > return true; > > If you keep the droppable thing out there you can just use > > vma_is_mm_backed() here I think. Yeah I think you're right, will update for v6! > > Acked-by: David Hildenbrand (Arm) Thanks! -- Cheers, Lorenzo _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv