From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0578D3E929C; Thu, 3 Sep 2026 10:31:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788431506; cv=none; b=Ja/MhU5nHgnHN2Rdir0XvjjyzVs8BMrrD++ysRNqZSP29+koZGwscAuZBr7IWXaFiNS9jZkeSJKN/yyE0hGQGnvdN+H+gNoilLzcDGXCiqc6Yf9x7dQx4gUp3rp34zMefpPChbX8xVQHhQ9EP0YgiVFQQ3x/gzeUq45C9481deY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788431506; c=relaxed/simple; bh=8uqvVZKecvI6tof0d601k1uUFNGK7TSPrxBJrkWSFMs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UTYs9UQUE0JdBkpJwVxJ9o/hrrG68UHZB7CeZ2OGjmY/B8MWh+dAOAk8CjyGtNl52hMHYk+Uz7cf+kOVbJy9bE9Jvud9/aBzIpgQOgl1BO8Bw54jUBeAaqNmDjU1bDlbIsCQi/6HEJhemU1Gs/TEzPPg6LKRVz9H98XsMYVneLQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=sXvoBVq6; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="sXvoBVq6" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EF3FC1F60; Thu, 3 Sep 2026 03:31:30 -0700 (PDT) Received: from e142334-100.cambridge.arm.com (e142334-100.cambridge.arm.com [10.2.198.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 75F4A3F673; Thu, 3 Sep 2026 03:31:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1788431494; bh=8uqvVZKecvI6tof0d601k1uUFNGK7TSPrxBJrkWSFMs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sXvoBVq6thF4MC66REFWIycWWSSZel6llh2rEnxk29YVxzxeqTuvKzkLPQExpL5vP VIAxdYcA409XP5txGxWv7JlB54zBOpxe/Awbpe8nex8QVvSi/N1WKiqaShe9lPoTL+ u61Zttng6oGMuIVLrzcTlmYO3afTqLY+B5XmFwf0= From: Muhammad Usama Anjum To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Simona Vetter , Dimitri Sivanich , Arnd Bergmann , Greg Kroah-Hartman , "James E.J. Bottomley" , Helge Deller , Juergen Gross , Stefano Stabellini , Muchun Song , Oscar Salvador , Andrew Morton , "Liam R. Howlett" , Lorenzo Stoakes , Will Deacon , "Aneesh Kumar K.V" , Nick Piggin , Peter Zijlstra , Andrey Ryabinin , David Hildenbrand , Pasha Tatashin , Chris Li , Kairui Song , Uladzislau Rezki , Steven Rostedt , Masami Hiramatsu , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , SJ Park , "Matthew Wilcox (Oracle)" , Jan Kara , Jason Gunthorpe , Leon Romanovsky , Miaohe Lin , Dennis Zhou , Tejun Heo , Christoph Lameter , Mike Rapoport , Johannes Weiner , ziy@nvidia.com, pfalcato@suse.de, agordeev@linux.ibm.com, ryan.roberts@arm.com Cc: Muhammad Usama Anjum , linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-parisc@vger.kernel.org, xen-devel@lists.xenproject.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, kasan-dev@googlegroups.com, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, damon@lists.linux.dev Subject: [PATCH v2 5/8] mm: convert PTE table entry to pte Date: Thu, 3 Sep 2026 11:29:57 +0100 Message-ID: <20260903103002.1091859-6-usama.anjum@arm.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260903103002.1091859-1-usama.anjum@arm.com> References: <20260903103002.1091859-1-usama.anjum@arm.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The non-MMU stub receives hw_pte_t but returns a software PTE value. It has no attached PTE that requires ptep_get(), so convert only the stored entry through __pte_from_hw(). Signed-off-by: Muhammad Usama Anjum --- Changes since v1: - Explain why the NOMMU stub does not use ptep_get(). - Use software PTE value terminology. --- include/linux/hugetlb.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 0d2101facaa50..637fc863d3687 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -1278,7 +1278,8 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, #ifdef CONFIG_MMU return ptep_get(ptep); #else - return *ptep; + /* No attached PTE that requires ptep_get(). */ + return __pte_from_hw(*ptep); #endif } -- 2.47.3