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 EA3F6C982E6 for ; Mon, 21 Sep 2026 14:47:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kmEsUEvY9vo2zaj1qCqnPiixs7yLoUz5iuxdnJ22dzs=; b=3lBIpZnJ04KJlnZCR/XnHhkYee O2jgETU3fIPhjmFQO8d8ZRFswGEBm+PAGfc25e7cA1LKQXre9LGIqLxmWZKQcpnoryEqi3KMU0kHh caKdunIggWq7SqiVSDrnIvJhsH1Y03Tmwp4KgaTU14HjiO0bSdSK27sp3O6KWzBlSMukpujt1cN9/ 6tGk5RsIoGiJFEfJVIVr+KldvCUx2x2AVMiKVhvtfDcNfRztQjXcS7sclegIzDYESk/XsxA8pdCEw OEfXO6RrtT2RsIRhp0xZw0+Rc59LR6NcYgfOaOmTu+uM/IRGwrtOlEV+/S0dOts3Rdch2cgpFVPkt IQxYmACQ==; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 9/3/26 08:06, Anshuman Khandual wrote: > Route READ_ONCE() accesses on pgtable entries via level specific generic MM > pxdp_get() helpers which platforms could then override when required. These > accessors on arm64, will help in ensuring page table accesses are performed > in an atomic manner while reading 128 bit page table entries later. But for > now they just default to READ_ONCE(), thus preserving existing behaviour on > current D64 translation. > > This is similar to generic MM, where all atomic accesses have already been > converted from READ_ONCE() into pgtable level specific accessors. > > These are preparatory patches for D128 enablement, although standing their > own for D64 translation as well. These patches are split from earlier D128 > V1 series. There are no functional changes here, and besides mm kselftests > do not show any regression. > > https://lore.kernel.org/linux-mm/20260729122452.3797443-1-anshuman.khandual@arm.com/ > > This series applies on v3.7-rc1 but after applying the following patches > related to pgtable entry print standardization posted earlier. > > https://lore.kernel.org/linux-mm/20260831054331.625505-1-anshuman.khandual@arm.com/ > > https://lore.kernel.org/linux-mm/20260901065454.1906343-1-anshuman.khandual@arm.com/ > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Ryan Roberts > Cc: Mark Rutland > Cc: Lorenzo Stoakes > Cc: Andrew Morton > Cc: David Hildenbrand > Cc: Mike Rapoport > Cc: Linu Cherian > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Cc: linux-mm@kvack.org > > Anshuman Khandual (4): > arm64/mm: Convert READ_ONCE() as pmdp_get() while accessing PMD > arm64/mm: Convert READ_ONCE() as pudp_get() while accessing PUD > arm64/mm: Convert READ_ONCE() as p4dp_get() while accessing P4D > arm64/mm: Convert READ_ONCE() as pgdp_get() while accessing PGD > > arch/arm64/include/asm/pgtable.h | 6 ++-- > arch/arm64/mm/fault.c | 8 ++--- > arch/arm64/mm/fixmap.c | 6 ++-- > arch/arm64/mm/hugetlbpage.c | 10 +++--- > arch/arm64/mm/kasan_init.c | 18 +++++----- > arch/arm64/mm/mmu.c | 60 ++++++++++++++++---------------- > arch/arm64/mm/pageattr.c | 8 ++--- > arch/arm64/mm/trans_pgd.c | 14 ++++---- > 8 files changed, 66 insertions(+), 64 deletions(-) Skimmed the changes, purely mechanical changes, so looks good. Consider spelling out in the patches "No functional change intended." -- Cheers, David