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 C18A6E9B24E for ; Tue, 24 Feb 2026 11:20:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3037B6B009D; Tue, 24 Feb 2026 06:20:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 2CE2D6B009F; Tue, 24 Feb 2026 06:20:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1C6B56B00A0; Tue, 24 Feb 2026 06:20:27 -0500 (EST) 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 062C56B009D for ; Tue, 24 Feb 2026 06:20:27 -0500 (EST) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id C73BA1A055B for ; Tue, 24 Feb 2026 11:20:26 +0000 (UTC) X-FDA: 84479106852.18.30C6B88 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf04.hostedemail.com (Postfix) with ESMTP id 20DDF40006 for ; Tue, 24 Feb 2026 11:20:24 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lEbr9SH4; spf=pass (imf04.hostedemail.com: domain of a.hindborg@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=a.hindborg@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=1771932025; 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=2fSMlQoIFoT2xdhXFxbon7gYUvUSeDaognlIwj/F26c=; b=V14X3PAFvp8LNUOkLII2skBLteaTi8IdWYcXf4h1V5UfejyHPifjK1h7G/9gv8oH2JKjHP gL3xvpaW0BJDiqV/rsBGFnxUUnm4vMkVz8KjOKv+KOlsCnUuyBxD9Lcq4feKNTBe8OrVXQ ZNnuhBT0NpLfybCf3a69tCQ45Mh1Gw8= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lEbr9SH4; spf=pass (imf04.hostedemail.com: domain of a.hindborg@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=a.hindborg@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1771932025; a=rsa-sha256; cv=none; b=l/lJFCt3og+U0RzfuF/+AnJQayLZLKTfiz83ce8swprMtGq157LObO4fUcTEJKz12zfmho 4HAEAH5tQKnfRH8mAf66Bgew1r/laquLOWgXwRSflaAmfenHEDbYIHa6cLnCtC3eobQBAn Vqwf+mpeB37NfYKYN/FqGMF+VbG/Zfc= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 97C966132E; Tue, 24 Feb 2026 11:20:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 953B3C116D0; Tue, 24 Feb 2026 11:20:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771932024; bh=u+CxE4WAb4lLYs646rqUMrYESFoSfCpkJ/yBahV7oWU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=lEbr9SH4g+vkYJTX1S89jMNlf3p84ZRU/v6+jnkKrqULJxEJdYlaFLJCqESxXcBdB 95iKFGtV5tH/t/0vNO+wxU1aDpsO11zqlfymtcsNTA4YvmO9YR5aYjFFMj7Ln8loPY rEgIKnAaxeg9kAjJlVwUqwUS0bEBBgWhB6fED96nwJgySVJezf35zzy0HLBtD08lQt 18In2j581km/tx1LLr/t4qqKAv5qEGQ1bpe2ctkMSNIPvMoiyy72CIAU4GrmCyvsRy yWMO3Jz5aMRBD1stVUIxNLV6DUau4VBUlFtdK8KkiaW/QzOk4ZH4TKPq+YaDfDzI1w ytRWw5P2ZZ/YQ== From: Andreas Hindborg Date: Tue, 24 Feb 2026 12:18:05 +0100 Subject: [PATCH v16 10/10] rust: page: add `from_raw()` MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260224-unique-ref-v16-10-c21afcb118d3@kernel.org> References: <20260224-unique-ref-v16-0-c21afcb118d3@kernel.org> In-Reply-To: <20260224-unique-ref-v16-0-c21afcb118d3@kernel.org> To: Miguel Ojeda , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Alice Ryhl , Trevor Gross , Danilo Krummrich , Greg Kroah-Hartman , Dave Ertman , Ira Weiny , Leon Romanovsky , Paul Moore , Serge Hallyn , "Rafael J. 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Signed-off-by: Andreas Hindborg --- rust/kernel/page.rs | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/rust/kernel/page.rs b/rust/kernel/page.rs index e21f02ae47b72..96f1ec125f043 100644 --- a/rust/kernel/page.rs +++ b/rust/kernel/page.rs @@ -192,6 +192,17 @@ pub fn nid(&self) -> i32 { unsafe { bindings::page_to_nid(self.as_ptr()) } } + /// Create a `&Page` from a raw `struct page` pointer. + /// + /// # Safety + /// + /// `ptr` must be convertible to a shared reference with a lifetime of `'a`. + pub unsafe fn from_raw<'a>(ptr: *const bindings::page) -> &'a Self { + // SAFETY: By function safety requirements, `ptr` is not null and is convertible to a shared + // reference. + unsafe { &*ptr.cast() } + } + /// Runs a piece of code with this page mapped to an address. /// /// The page is unmapped when this call returns. -- 2.51.2