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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 93657D232EC for ; Fri, 9 Jan 2026 08:21:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 014866B0088; Fri, 9 Jan 2026 03:21:15 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F042A6B0089; Fri, 9 Jan 2026 03:21:14 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DDC1D6B008A; Fri, 9 Jan 2026 03:21:14 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id CAE4D6B0088 for ; Fri, 9 Jan 2026 03:21:14 -0500 (EST) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 704128B876 for ; Fri, 9 Jan 2026 08:21:14 +0000 (UTC) X-FDA: 84311730468.26.6ECB7AD Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf15.hostedemail.com (Postfix) with ESMTP id CCD62A0003 for ; Fri, 9 Jan 2026 08:21:12 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=gk+RzwZJ; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf15.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1767946872; a=rsa-sha256; cv=none; b=HDYqK8VvKc37Vx7GLY+v1C323cliYgF9erCduYzj0SvFKWmY6FmrLMg79U+wOYREVhwg2F ukdyaFB/r1GOvB0vCpLPqq3x7hxzDqWWtiDZ2F631QUcuXusLJgUEOX4+CV6GOOJ6Ozj1Y J/dg0rEKlJqqgLdwD204u9hnKAPBHQY= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=gk+RzwZJ; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf15.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1767946872; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=7bwCvYNVWz131ksEKOnghAOgppy+qUVLkrHVAB2GisI=; b=r+WK3JNIiAVp+PCoqo5CHB2dvR2sH7qNT8jC+Ntan0jIxD5ga43t1SZ5aIMKguLF73yYqO TfZR3UW5ax9+zOrBgqtZbPRRXI2BYRrlPQofV5Tdhog9WxepLtlEh9Ietrz78rP79bG67l r9IczRleE8tpO44TGAz83skCN65CY+A= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 96BEE404ED; Fri, 9 Jan 2026 08:21:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0BA62C19422; Fri, 9 Jan 2026 08:21:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767946871; bh=KUFuE5V8UAiIurL6g3Fp/lJo2ewluF8KzNFw5f5PUjk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gk+RzwZJgqFqDXbdeT7Ij2ANvkctK08svhshZT4R6yu6GK6U5FU7oH4Xe+zv8qwMi 4CjPgeTPbBjv8HsMIltG5ewdwonA8kjSIA667gREwSdMJ3RS+7Buq5U6Eos8SvbK+J nKkrMxUoT4X8Q0FyxCy4EZdhe4iqJhr4V6t7/UJCAhTlbVpUQXR/gm208md0TMmWZM HkmXt9IdJ7rCxhmZTAD0oRgGfDs7xzYOTVswLzOoZ7GMgJgYq9abd0Ivcl84yf5tq9 J4AmlCsrCF8YDst8YMFTNmMfuhpye4VlBUo7YM7KAkx0A9LACF/F+ezsCZLKZlQrcl B6Hco6Rs0QnpA== Date: Fri, 9 Jan 2026 10:21:00 +0200 From: Mike Rapoport To: Lain Fearyncess Yang Cc: Huacai Chen , WANG Xuerui , Kexy Biscuit , Mingcong Bai , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Shuah Khan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Arnd Bergmann , Jiaxun Yang , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org Subject: Re: [PATCH] loongarch: wire up memfd_secret system call Message-ID: References: <20260109051054.188030-1-fearyncess@aosc.io> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260109051054.188030-1-fearyncess@aosc.io> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: CCD62A0003 X-Stat-Signature: f8mofzk5cn7eobsfx618jtqxwgazxwm4 X-Rspam-User: X-HE-Tag: 1767946872-395718 X-HE-Meta: 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 KNdIy4AM mMViRun08yx7MxIcvVYLsQUob1kY+IPmZooIDRT9qtVjXbptWeZ0voghUyr//7+MfnWh37753oMVnzd2VB7soqPK8OmzJRESeNUltH4b3PF/S/B1dIGJF2KRZ7wAUHYR2+XPlRdFVCIcQUbbKBD0M5irQX7JIlBgPC1Mz7rFPosyy9XnfJH4FiScRYti5aYEcVxDMTKoE2b3KsBvUPZo9vwOVRAF+txT4uTZlpD1ZGcp/KIe2JMFUuIT7XcTptOQEdv4uqx2d7Wgr0Jw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Jan 09, 2026 at 01:10:51PM +0800, Lain Fearyncess Yang wrote: > From: "Lain \"Fearyncess\" Yang" > > LoongArch supports ARCH_HAS_SET_DIRECT_MAP, therefore wire up the > memfd_secret system call, which depends on it. LoongArch version of set_memory* does not support splitting of leaf PMD entries. Does LoongArch always use PTE-level mappings in the direct map? > Signed-off-by: Lain "Fearyncess" Yang > --- > arch/loongarch/include/asm/unistd.h | 1 + > arch/loongarch/kernel/Makefile.syscalls | 6 +++--- > tools/testing/selftests/mm/Makefile | 2 +- > 3 files changed, 5 insertions(+), 4 deletions(-) -- Sincerely yours, Mike.