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 721311A76DA for ; Wed, 6 Aug 2025 20:51:12 +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=1754513472; cv=none; b=LC0gqlJ/VNr6BUmhur8ufppuBik30DMdjDSke/2/5aPVkbSFrjRWWLfAwBCF+QkZBq4ACigZSohI5Rv8C4SQbJMQqGdWZDrA5PLArNcStt/H5xkSUXItKIHsLuTEehO5J6OWzJHgIRu35tJnjVLXHqMwl4be+Z0TBm8ftL9Ry/0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754513472; c=relaxed/simple; bh=0lwkPZPW30SvR10zaaZcIyeXDGh3WcmqgvZ4zDQIKeo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bVb/jRiWciUpuQUskOam5O3Bj6VZhpS4SGDzvq8STFV2rlvv7rDbKuqREgCc1oxq6DAP/7dapPIqzhxLd+HSs6srWbhqHJOA2/WECcZD8rywTJnpjpwp7yqZhIuhPSU4cxNUU0QSC7cy/6wCnzRlyBRr66lPB4pMVkG5yd908iQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZOpb2un4; 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="ZOpb2un4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 662F9C4CEED; Wed, 6 Aug 2025 20:51:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754513472; bh=0lwkPZPW30SvR10zaaZcIyeXDGh3WcmqgvZ4zDQIKeo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZOpb2un4y+oNJTtooyoAexELj3quADh/+XzWO/m+4mPIKAgQSyzwk+hlw2zCr/lLn QOWVvUqjtfIHpO5X+GMWAT13lBa01IfMYc7zacnZo7J9V5lt1YJM9lq4KNqTOQicSF RcqVhglaW6sIBH3Sgu+NPOWAeJVS3dvf6+BZtH1UdHyQh9on4Yvw8TCKugMeebztip CmNQpTSIAeFq/gTEWLYN7/rqWqhHenSeVrH9l9bMZ1DE6X+T0FCNOxB01qHdQ9fozw w/OXsdYCP4rC/HTlNvJaEP1uEN1/GyHfy8n2UXqVm4/y1LeTk+NUH5t3JBY/J4RgH9 S58t8vkqmG/mg== From: Danilo Krummrich To: lorenzo.stoakes@oracle.com, vbabka@suse.cz, Liam.Howlett@oracle.com, urezki@gmail.com, ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, abdiel.janulgue@gmail.com, acourbot@nvidia.com Cc: rust-for-linux@vger.kernel.org, Danilo Krummrich Subject: [PATCH v2 4/6] rust: alloc: layout: implement ArrayLayout::size() Date: Wed, 6 Aug 2025 22:50:13 +0200 Message-ID: <20250806205044.85085-5-dakr@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250806205044.85085-1-dakr@kernel.org> References: <20250806205044.85085-1-dakr@kernel.org> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Provide a convenience method for ArrayLayout to calculate the size of the ArrayLayout in bytes. Signed-off-by: Danilo Krummrich --- rust/kernel/alloc/layout.rs | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/rust/kernel/alloc/layout.rs b/rust/kernel/alloc/layout.rs index 93ed514f7cc7..666accb7859c 100644 --- a/rust/kernel/alloc/layout.rs +++ b/rust/kernel/alloc/layout.rs @@ -98,6 +98,11 @@ pub const fn len(&self) -> usize { pub const fn is_empty(&self) -> bool { self.len == 0 } + + /// Returns the size of the [`ArrayLayout`] in bytes. + pub const fn size(&self) -> usize { + self.len() * core::mem::size_of::() + } } impl From> for Layout { -- 2.50.1