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 5B624218591; Fri, 10 Jan 2025 20:17:53 +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=1736540273; cv=none; b=qpKqPpSJVByr/mfAXUTs7hz8bgetA6RrC/TwX3icbs5J2xleuKE1U7HL4+E+FH+DuR+f5t1zMK2OuZNXn2cW52XLVAAlmjvWhNojgsNvfRLM4ImhHtGLRcyQGVx7adR4zI2Vak2ViFtWf2F/a76b0/AimaSklyfflprGX/kxNwc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736540273; c=relaxed/simple; bh=tQDyXQBkG1q5qjeehMfyrhkTdqTA2BWMVmg+Cs7DewM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=lAolsiDN2tL6jWqmd5vP7Pf3q3Qi8n04RrLd4VyJrd/rHZoU17T3c/VqT0DgE0UaCXcuwBelBZTxjpbnqYuQbJfslo/ccM0kHs8b1i7f6s1vAbhCrmiltJ0tbVhuxzToaczG/chRSX8X/fEsbFmSB7wtnAuryqZGmGw738NfNWg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n34ZU7Kq; 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="n34ZU7Kq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B3162C4CEDD; Fri, 10 Jan 2025 20:17:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736540272; bh=tQDyXQBkG1q5qjeehMfyrhkTdqTA2BWMVmg+Cs7DewM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=n34ZU7Kq3P1MBaOpwEDTfDSvv7WWjyaJdpaCwccYPzqJ4rVYAbgXQV8JKQiEZ36Hw HBtELsuOrI6szk+4y+Ghvbz8F+fovwOiFltLfOjEzqk/FECYvdjH+/57f3/ZlbTL5v brAMojToNmw62YRzex/sK0aqrokeF0TrodGSzlgjS5jTSN6QItkCHihLSGnPRhHopK zkrUBiszzbY9/4IgjIzHDrW90/cAimVWHPV3/bKF2ZB6BdimGAcIyoJwHX9ZZiFMmQ AmOzrrmj5MSAqd4nFUlIpqe9huYBVFFl97nF9Sue5nqRtCBTpgTt30iGwz2AD0zP2b NpIDM9nVoMljg== From: Andreas Hindborg Date: Fri, 10 Jan 2025 21:15:33 +0100 Subject: [PATCH v6 10/14] rust: alloc: add `Box::into_pin` Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250110-hrtimer-v3-v6-12-rc2-v6-10-f71d50f16482@kernel.org> References: <20250110-hrtimer-v3-v6-12-rc2-v6-0-f71d50f16482@kernel.org> In-Reply-To: <20250110-hrtimer-v3-v6-12-rc2-v6-0-f71d50f16482@kernel.org> To: Miguel Ojeda , Anna-Maria Behnsen , Frederic Weisbecker , Thomas Gleixner , Danilo Krummrich Cc: Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Alice Ryhl , Trevor Gross , Lyude Paul , Guangbo Cui <2407018371@qq.com>, Dirk Behme , Daniel Almeida , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Andreas Hindborg X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=1038; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=tQDyXQBkG1q5qjeehMfyrhkTdqTA2BWMVmg+Cs7DewM=; b=owEBbQKS/ZANAwAIAeG4Gj55KGN3AcsmYgBngX/oOsQNDhHkpQXDDPcdFRBxzT/F2wCQNzHEW H70jfLunpuJAjMEAAEIAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCZ4F/6AAKCRDhuBo+eShj d2bmD/0Xkf35dAsl4/d44U1yWTvbND7/B5ulUuD0nu47wpqDZGW9gRBKSSSvehQo3B49IhrN/vl c2OA+Kd3EPcpA+VpUcXxyOnZbHeKr4rrI55sf+WQ/q24yhNGD7NvR7dkShv/saGlxtYB1mAgyP9 NgZRXH0Inj6kq3K/jz2m80Hj4ZcwrSkgNPESPTTYZ74SEgsq32Orq7cK5MiqX1fupphjOPUcIAZ u+Spsm2SNiiwuqoyZ9v8JdMMdyeAP/sxkBEIB36saGmbWV26hvGmfk2Sx/LbSN8P5BeQ9YvHMlV 9pj+FAg8MsjWPJYIVKeviCQFelVF59O8vE/LGHdEdnxxzEQe9UwmfrUQkoJX//ISK8yfMwkG8Fn l5nbGoUwDk+JNpEP04RwoU6demSGLty0+1dnJyDvVyi4YhDA/2hZid/ttF7yKcdybJ2SLp5I+Js 0Nk/P0dUXGH/weIzmSrq5l0wk6nPeXi3sSlVTxXE3ZGu2F6pvyiI9efUNxCgLlqw3fbsDAKjJyg 1e450zNFKmeDcW8PsQt/0Bh9sO0FsbjjVvEvfleiAPBfN6nEdZck5cmcPcVyH1f1na80fts8pYf xtPGuYiWXnTYxc7mJ3PTJTp32dD8j/8UMi6gbCYAglUw1qG6YAqNItM+PZ+W7FXU/YLpkC2Q7Qk jULqMKo+Yinkqeg== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 Add an associated function to convert a `Box` into a `Pin>`. Signed-off-by: Andreas Hindborg --- rust/kernel/alloc/kbox.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/rust/kernel/alloc/kbox.rs b/rust/kernel/alloc/kbox.rs index 9ce414361c2c6dd8eea09b11041f6c307cbc7864..76f29e2ac085e19871f18653cfddf11d2594682c 100644 --- a/rust/kernel/alloc/kbox.rs +++ b/rust/kernel/alloc/kbox.rs @@ -245,6 +245,12 @@ pub fn pin(x: T, flags: Flags) -> Result>, AllocError> Ok(Self::new(x, flags)?.into()) } + /// Convert a [`Box`] to a [`Pin>`]. If `T` does not implement + /// [`Unpin`], then `x` will be pinned in memory and can't be moved. + pub fn into_pin(boxed: Self) -> Pin { + boxed.into() + } + /// Forgets the contents (does not run the destructor), but keeps the allocation. fn forget_contents(this: Self) -> Box, A> { let ptr = Self::into_raw(this); -- 2.47.0