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 5729937F8DD for ; Tue, 1 Sep 2026 05:45:03 +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=1788241504; cv=none; b=EHgDKoxOTfMu5b4+DLWZcRx1tIMcUGB773unYCMnuMuYC1pPuNM1yGbbmn17S6vdCyIv2l69UaZUad79ohPoVy0VkOONEaWaYb2IScHuqKkTbF13//vs9jSoeDOgY2bn9HK7/tLZYqejnFFQK3d73Ih7aGxwiLquJmluaA7Jwl8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788241504; c=relaxed/simple; bh=tmJo3rjw0Sr3OV0lC41Li6x3+cmR1t0LVTih0JfnMfU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Re3g/+vamH8UJeOt4d/2U0t3uyKx7gKKO1psFX2PaS/11q1Qwv2LaKY67f+UvO0uZx1CCAzZ/jA5GHZdi2M8XQNSTbobICY4ZkOCMzqG0pk37EF2dvbjDZJKRrjbZOAASKXGX4fVcMRVk+y5HALO7Xtdrc3AxR1HnHvyYpv6bHA= 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=mxQNKj4W; 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="mxQNKj4W" 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 D512F1AED; Mon, 31 Aug 2026 22:44:58 -0700 (PDT) Received: from cesw-amp-gbt-1s-m12830-01.blr.arm.com (cesw-amp-gbt-1s-m12830-01.blr.arm.com [10.164.195.33]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B6B9A3F85F; Mon, 31 Aug 2026 22:44:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1788241502; bh=tmJo3rjw0Sr3OV0lC41Li6x3+cmR1t0LVTih0JfnMfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mxQNKj4Wb0AEhmFu9i0suaBsQYFruZECm4SWTseJP7rcY2W3tIcJc2YI9lEycAGbN ZsPZbxPAQokrm2WN4mK1Ud3PO6iU7lcQ+kcXpB4dNkc5H19R67JsXBZnnUMZTQD+38 NeY2MAeNqKc1GX+dQ6Zfqt+VNWjlIMJLzoHmT2n0= From: Dev Jain To: akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org, hughd@google.com, chrisl@kernel.org, kasong@tencent.com Cc: Dev Jain , riel@surriel.com, liam@infradead.org, vbabka@kernel.org, harry@kernel.org, jannh@google.com, lance.yang@linux.dev, baolin.wang@linux.alibaba.com, shikemeng@huaweicloud.com, nphamcs@gmail.com, baoquan.he@linux.dev, baohua@kernel.org, youngjun.park@lge.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, pfalcato@suse.de, ryan.roberts@arm.com, anshuman.khandual@arm.com Subject: [PATCH v2 7/8] mm/memory: use set_softleaf_ptes for uffd-wp markers Date: Tue, 1 Sep 2026 05:43:54 +0000 Message-ID: <20260901054358.4049095-8-dev.jain@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260901054358.4049095-1-dev.jain@arm.com> References: <20260901054358.4049095-1-dev.jain@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use set_softleaf_ptes() to store multiple uffd-wp marker entries instead of open coding the batched setting. Signed-off-by: Dev Jain --- mm/memory.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 7ce8413a8117d..8c45fb25fd8dd 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1737,14 +1737,8 @@ bool cond_install_uffd_wp_ptes(struct vm_area_struct *vma, if (likely(!arm_uffd_pte)) return false; - for (;;) { - set_pte_at(vma->vm_mm, addr, ptep, - make_pte_marker(PTE_MARKER_UFFD_WP)); - if (--nr_ptes == 0) - break; - ptep++; - addr += PAGE_SIZE; - } + set_softleaf_ptes(vma->vm_mm, addr, ptep, + make_pte_marker(PTE_MARKER_UFFD_WP), nr_ptes); return true; } -- 2.43.0