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 6396FC5DF8C for ; Sun, 23 Aug 2026 12:18:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6ECF56B00A2; Sun, 23 Aug 2026 08:18:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6C45C6B00A3; Sun, 23 Aug 2026 08:18:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5DA3C6B00A4; Sun, 23 Aug 2026 08:18:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 398156B00A2 for ; Sun, 23 Aug 2026 08:18:08 -0400 (EDT) Received: from smtpin21.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id C7D651C0405 for ; Sun, 23 Aug 2026 12:18:07 +0000 (UTC) X-FDA: 85132436214.21.397FC69 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf08.hostedemail.com (Postfix) with ESMTP id 250C9160002 for ; Sun, 23 Aug 2026 12:18:06 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=Hh4r+QK2; spf=pass (imf08.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1787487486; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=kndwtv5Cm5Svk82exojGXyoNLdRzxaTi6Z5eoExMZW8=; b=yKR7cWtQ6hd1VXoYPT6KXATiYOfC5ZEiXeqnfYjLQo9jXuJEDKIKmgS/Yhaj89ZdeVNPVb e4c//OcQl1J9znZpJVCSAIYR9xg2JNlQXI4ea1pKu5Rilr7tpIztKWNj0cwEV+XER5CxQG S+iNxJ43xwDfrO683mVjqQaJrBnEN+Y= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=Hh4r+QK2; spf=pass (imf08.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1787487486; b=LoQlSFMXkbZpAwDceaqu8IoZaCRixaN99PIgTZxFzy+OZcVfDQ3oSZoBrldQcK1+1B4QYR EKwz1ZwzNRRy7qO7j0AIl1UEb4C56pL26KtnI9YSLpPbZTPlJWvVR5sc6p/wfYzh7hOwut pWTcpu4ZNveQdE5JO5CHnox8fZE4Wt8= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 67F6540517; Sun, 23 Aug 2026 12:18:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98DCB1F000E9; Sun, 23 Aug 2026 12:17:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787487485; bh=kndwtv5Cm5Svk82exojGXyoNLdRzxaTi6Z5eoExMZW8=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=Hh4r+QK2GdpFEuv6ihYd8/+0ZW1NQU+UeKZdTxUMtpnRo78N4CPidoNDY5bHIHEh7 R2QKLcipnEJbDJbbS/Dryi1+nkvs1RVC1oV64SnN7k2nbxm32zx8oGLesqLons5Z1x 2N743kbgL182hjg41CyjOn542aZh8zZCGbLPjXBGPpUuHth2xsSL+YIvT3nZoXK0qB nyoOjCJERvpXxA2wQcf5+ArmjXQXhaDd1jr/iBCUxiuFkUuo6Bany7IjY+sHLJobD7 kWXhJOkJCu06p9sKN9b9omMLEuVZzBXGdQqUa6awxh/fuEgRLWRTd6XAExltaipQcH DRctSy1CvIbDw== From: "Mike Rapoport (Microsoft)" Date: Sun, 23 Aug 2026 15:17:39 +0300 Subject: [PATCH 2/6] userfaultfd: constify VMA parameter of userfaultfd_*() helpers MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260823-uffd-vm-flags-v1-v1-2-3086981b33cf@kernel.org> References: <20260823-uffd-vm-flags-v1-v1-0-3086981b33cf@kernel.org> In-Reply-To: <20260823-uffd-vm-flags-v1-v1-0-3086981b33cf@kernel.org> To: Andrew Morton , David Hildenbrand Cc: Baolin Wang , Barry Song , Dev Jain , Hugh Dickins , Jann Horn , Jason Gunthorpe , John Hubbard , Jonathan Corbet , Lance Yang , "Liam R. Howlett" , Lorenzo Stoakes , Masami Hiramatsu , Mathieu Desnoyers , Mike Rapoport , Michal Hocko , Muchun Song , Nico Pache , Oscar Salvador , Pedro Falcato , Peter Xu , Ryan Roberts , Shakeel Butt , Shuah Khan , Steven Rostedt , Suren Baghdasaryan , Usama Arif , Vlastimil Babka , Zi Yan , linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org X-Mailer: b4 0.17-dev X-Stat-Signature: n67x4ao9skwi9stfqmghc9sd1fzi6iuy X-Rspamd-Queue-Id: 250C9160002 X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1787487486-455129 X-HE-Meta: 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 ZSPK0k6z nPAHccdwUvnGPwwLLhxKdhYduCVbjPM8N5+jzI+qtGsPQNt1XdlGjR5SeBDaPWoDqQgCG4VwY8X+9bnO9Nq0dPg4rqHqwKK/PJ0vmqRHOKSE/GTeZFpiMGq+wcpI6BkcEDa2Nna1OuMthCuTSfjlWp631sFQb0ygZG58iXftbVzw8BSngbFAyZOYBrji/tKqPYH49ZOU93FC0bMMVFBYOSKlxhfyCLw6EHrVluZE+oIx0j6IpxsU57s04OuG+NkPCmDwFrqtueausoHwuCPbypUU3JGnRxk58qcKOa6AdUuK3hRM= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: userfaultfd_{missing,wp,minor,rwp}() and userfaultfd_protected() only read the VMA. Make their vma parameter const. No functional change. Assisted-by: copilot:claude-opus-5 Signed-off-by: Mike Rapoport (Microsoft) --- include/linux/userfaultfd_k.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h index a4351cffc60c..3396d270b159 100644 --- a/include/linux/userfaultfd_k.h +++ b/include/linux/userfaultfd_k.h @@ -204,22 +204,22 @@ static inline bool uffd_disable_fault_around(struct vm_area_struct *vma) VMA_UFFD_MINOR)); } -static inline bool userfaultfd_missing(struct vm_area_struct *vma) +static inline bool userfaultfd_missing(const struct vm_area_struct *vma) { return vma_test_any_mask(vma, VMA_UFFD_MISSING); } -static inline bool userfaultfd_wp(struct vm_area_struct *vma) +static inline bool userfaultfd_wp(const struct vm_area_struct *vma) { return vma_test_any_mask(vma, VMA_UFFD_WP); } -static inline bool userfaultfd_minor(struct vm_area_struct *vma) +static inline bool userfaultfd_minor(const struct vm_area_struct *vma) { return vma_test_any_mask(vma, VMA_UFFD_MINOR); } -static inline bool userfaultfd_rwp(struct vm_area_struct *vma) +static inline bool userfaultfd_rwp(const struct vm_area_struct *vma) { /* * Callers gate PAGE_NONE usage on this; PAGE_NONE is a BUILD_BUG() @@ -230,7 +230,7 @@ static inline bool userfaultfd_rwp(struct vm_area_struct *vma) return vma_test_single_mask(vma, VMA_UFFD_RWP); } -static inline bool userfaultfd_protected(struct vm_area_struct *vma) +static inline bool userfaultfd_protected(const struct vm_area_struct *vma) { return userfaultfd_wp(vma) || userfaultfd_rwp(vma); } @@ -353,27 +353,27 @@ static inline bool is_mergeable_vm_userfaultfd_ctx(struct vm_area_struct *vma, return true; } -static inline bool userfaultfd_missing(struct vm_area_struct *vma) +static inline bool userfaultfd_missing(const struct vm_area_struct *vma) { return false; } -static inline bool userfaultfd_wp(struct vm_area_struct *vma) +static inline bool userfaultfd_wp(const struct vm_area_struct *vma) { return false; } -static inline bool userfaultfd_minor(struct vm_area_struct *vma) +static inline bool userfaultfd_minor(const struct vm_area_struct *vma) { return false; } -static inline bool userfaultfd_rwp(struct vm_area_struct *vma) +static inline bool userfaultfd_rwp(const struct vm_area_struct *vma) { return false; } -static inline bool userfaultfd_protected(struct vm_area_struct *vma) +static inline bool userfaultfd_protected(const struct vm_area_struct *vma) { return false; } -- 2.53.0