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 8327713C918; Sun, 25 Jan 2026 09:59:12 +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=1769335153; cv=none; b=eGrMGfImjH9KHgsv9aujvUXefmEv91aGXQXDHSQWC4DNRh4nQQKNrvMCXghL57dTHdl4QZFObHYfmTgvTALrtkty46ssPKNKBuYG6fa9SP/8pEyMkQCQwFRx1pD9mxR1yiDqym/+9YGvTJNaExXOg0KKO5TApKaDWQv5k2dq36w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769335153; c=relaxed/simple; bh=t90pzN2k6Whbca/34ndSIUtQ6ODauPo1RiRNlXzDNBs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=o8Z6/tCTY/wSfEggKefyVYtm2V4CsQMqpaS/MsDMHMaJh1kqGeGhgqhCk4kLBZGAJ4EG8F1SjBn+Ui5f0GdPgOMu5I0Q1OQblPbNvf2Oy7ba2opNnqgh9EY3V+SfCMxpEA6wSnL5R6jw6z2gICfAGYwhopj+mYA8SG9erNTVSCo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lXW3ae0Y; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lXW3ae0Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4929EC4CEF1; Sun, 25 Jan 2026 09:59:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769335152; bh=t90pzN2k6Whbca/34ndSIUtQ6ODauPo1RiRNlXzDNBs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lXW3ae0YU8z55SpbxpHPpo8QS9OjGqTcHsbiii51ODHCMOf6hliMbhrjJWn+728Be TgZj79d5jvu5iItz6H9z2pmlrAqZUWh5ktcnp/oBBLBErOg264g+S0l93REVWuqUc7 9f1SvxnhTk/H3zWkQkzLti8BWy0U2XDnGrip1KUUg+j/NWfT1ToyfG8YMEEV0sxDWC KglKM8yIWZ/13LlIhLbEqUClho2mOfcPaccYreX2EQEnOjI+jvuATB8GxADABVYNyK Jh2oups9hDCMfNMF3wtxjcp2b1X8NBJWd29wiq4EXkdQUSJ2jgLnBg87nxA121pjwM f05aOgFlDDr5w== Date: Sun, 25 Jan 2026 11:58:58 +0200 From: Mike Rapoport To: Huacai Chen Cc: Lain Fearyncess Yang , 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> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Sun, Jan 25, 2026 at 12:03:25PM +0800, Huacai Chen wrote: > On Fri, Jan 9, 2026 at 4:21 PM Mike Rapoport wrote: > > > > 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? > No PMD level mappings now. Thanks for the clarification. You can add Acked-by: Mike Rapoport (Microsoft) if it's not too late :) > Huacai -- Sincerely yours, Mike. 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 E672DE63C9A for ; Sun, 25 Jan 2026 09:59:45 +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=30qmrb1tI7nGXnlEXAWQanGDU0+d5C/KE1oa8XuLasA=; b=1DOvQGXPUFlWJV dmu/8C3gM0dmTFNOKpEQS26F8ESD1F8rHDfuY4JT3XrX22QD1GIOVKspc8DVETvFWgMEfI3Jx2UgO kGHgUCS2zA+WwKGpUfLtoDCrwkyyYullfRvdHT0/+D8ZIc/bQt0PA2BuZKZMoTJlrXKviAs/2Rzkh 9WlcgXCL+V1XgwsqVZW+D/tpjgEAq6beLEIdglb1BxpaRTG9AOl4iviE8xj8FEOd5XTO5olZn5GdW 7mGd0KnGqht0F9V5s5qnLehgo63f5JixFmdD/a7pISNRZ0x7WQJN0UFV2kTJomAaOR0BRwBVvBf+K wc+enDNkWDD/0XpNRbSg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vjwtr-0000000B42p-2oTw; Sun, 25 Jan 2026 09:59:19 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vjwto-0000000B42P-2yNW for linux-riscv@lists.infradead.org; Sun, 25 Jan 2026 09:59:18 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id E4C0340795; Sun, 25 Jan 2026 09:59:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4929EC4CEF1; Sun, 25 Jan 2026 09:59:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769335152; bh=t90pzN2k6Whbca/34ndSIUtQ6ODauPo1RiRNlXzDNBs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lXW3ae0YU8z55SpbxpHPpo8QS9OjGqTcHsbiii51ODHCMOf6hliMbhrjJWn+728Be TgZj79d5jvu5iItz6H9z2pmlrAqZUWh5ktcnp/oBBLBErOg264g+S0l93REVWuqUc7 9f1SvxnhTk/H3zWkQkzLti8BWy0U2XDnGrip1KUUg+j/NWfT1ToyfG8YMEEV0sxDWC KglKM8yIWZ/13LlIhLbEqUClho2mOfcPaccYreX2EQEnOjI+jvuATB8GxADABVYNyK Jh2oups9hDCMfNMF3wtxjcp2b1X8NBJWd29wiq4EXkdQUSJ2jgLnBg87nxA121pjwM f05aOgFlDDr5w== Date: Sun, 25 Jan 2026 11:58:58 +0200 From: Mike Rapoport To: Huacai Chen Cc: Lain Fearyncess Yang , 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-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260125_015916_867493_C0A50D9F X-CRM114-Status: GOOD ( 12.05 ) 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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gU3VuLCBKYW4gMjUsIDIwMjYgYXQgMTI6MDM6MjVQTSArMDgwMCwgSHVhY2FpIENoZW4gd3Jv dGU6Cj4gT24gRnJpLCBKYW4gOSwgMjAyNiBhdCA0OjIx4oCvUE0gTWlrZSBSYXBvcG9ydCA8cnBw dEBrZXJuZWwub3JnPiB3cm90ZToKPiA+Cj4gPiBPbiBGcmksIEphbiAwOSwgMjAyNiBhdCAwMTox MDo1MVBNICswODAwLCBMYWluIEZlYXJ5bmNlc3MgWWFuZyB3cm90ZToKPiA+ID4gRnJvbTogIkxh aW4gXCJGZWFyeW5jZXNzXCIgWWFuZyIgPGZlYXJ5bmNlc3NAYW9zYy5pbz4KPiA+ID4KPiA+ID4g TG9vbmdBcmNoIHN1cHBvcnRzIEFSQ0hfSEFTX1NFVF9ESVJFQ1RfTUFQLCB0aGVyZWZvcmUgd2ly ZSB1cCB0aGUKPiA+ID4gbWVtZmRfc2VjcmV0IHN5c3RlbSBjYWxsLCB3aGljaCBkZXBlbmRzIG9u IGl0Lgo+ID4KPiA+IExvb25nQXJjaCB2ZXJzaW9uIG9mIHNldF9tZW1vcnkqIGRvZXMgbm90IHN1 cHBvcnQgc3BsaXR0aW5nIG9mIGxlYWYgUE1ECj4gPiBlbnRyaWVzLiBEb2VzIExvb25nQXJjaCBh bHdheXMgdXNlIFBURS1sZXZlbCBtYXBwaW5ncyBpbiB0aGUgZGlyZWN0IG1hcD8KPiBObyBQTUQg bGV2ZWwgbWFwcGluZ3Mgbm93LgoKVGhhbmtzIGZvciB0aGUgY2xhcmlmaWNhdGlvbi4gWW91IGNh biBhZGQKCkFja2VkLWJ5OiBNaWtlIFJhcG9wb3J0IChNaWNyb3NvZnQpIDxycHB0QGtlcm5lbC5v cmc+CgppZiBpdCdzIG5vdCB0b28gbGF0ZSA6KQoKPiBIdWFjYWkKCi0tIApTaW5jZXJlbHkgeW91 cnMsCk1pa2UuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9y ZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2 Cg==