From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f43.google.com (mail-wm1-f43.google.com [209.85.128.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA11413D882; Thu, 23 Jan 2025 17:57:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.43 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737655081; cv=none; b=M9HggopACQF9bzPlCsXaDV3ZcUu6HKJ6yhRcUOcPO3QR3EC7TZQ0V+EOJMq9VYSPBbYiqaH/1gecwlTIo+rYmRPtMlNoWzt25Ba3QFHpEiiarMBCreeVs1+/Bh9Xq4bCBNeobZnXtVkS3cgWKK7a1VVZEN3AMl2smVtlBe3W6y0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737655081; c=relaxed/simple; bh=1XgmgqTAgiju8SgPYQCpS9UEyVlVodD7DtYr3f+1hKM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Am9GOaJXlsp8JH7UzMl8u3i0Nm8GxkZ9P6LVe+gVQ5q/vtMVlkvc3jzg5XqvFiXcOb2fj7e4TigsWUOfSuJAymvL43mWXOZKu10lP3d+ife+lEbXEyS6xFAPgSIC3u/m8CvX81HsjsSsTQrAAhE0FD206vaxqR7gobfrj0wzzs4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=cbGYbx39; arc=none smtp.client-ip=209.85.128.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cbGYbx39" Received: by mail-wm1-f43.google.com with SMTP id 5b1f17b1804b1-4362bae4d7dso8983545e9.1; Thu, 23 Jan 2025 09:57:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1737655078; x=1738259878; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=NfDjk5yMleanbF1OvHIpa0anj5diZzdhr53pfwshB1w=; b=cbGYbx39ikBcBL/7QTfEheekJnY3hc8k1jQEGOoYVFmDX+CQBcpCgxcbPBf4Dq9TCP vtHv+vh6ApTllVTcbvzMuDHJvDnn6SxzPew0u478YdVoRrsfBGhuIiOKkfmo9+CyOraU EoxszB3NOwFVbPPsvTvJO8kreZDyfZJ6QTzguSCQuWGrWHwwtVAvXI0oZIzzFqAQzY4P A5X0xHN604lZcaD4uyCh6nkB9+mrdWwHfJCN6+dz1TBQSWu+jjj+2m/kVjE0MJrECT+o JgCGyhi/X/QDRJrERvwR9FoZT8uc4HwWXxOi/LabbDQ/ikTKGuvKElpCr8IwwL4luKkU tFUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1737655078; x=1738259878; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=NfDjk5yMleanbF1OvHIpa0anj5diZzdhr53pfwshB1w=; b=NNzGqI3wGHd5FFubFYw132hC5CFdcO7Cv315uKKai7BG3riTfEQDfgFGF2tmyN62oo TGBG7antKhMQXS0BAYErQyjI2MWS+W1BY+kdQkazkRRBJQwzvBPHrIOoBDr7mslhbDIt CPLPdWcZB8YFkw6YrQkhh4hdlKKR0h+ufOAY+5BD43yuw9AI8N4iKgIjRQgdwGmixrZU Ybo8y/Qjmm786MlPIvW5JUBWE04D0+xl5HEKlhGrHsqWauYvGN9CzyEVyD587OQZeU/l 7qwkMFbkyKvZJpuCvBaNSph7j7s4W9lzpVRcjmLZJuzK0RpkHMXYvzdAU8P1siPO4mfq osqw== X-Forwarded-Encrypted: i=1; AJvYcCVup7wrCdx8LI3kdqb6DGwBzAhA3tbqeRJhapCOKBKLG7Y5qSe7+TacUVvobXuWY5j+B9sUZHh4oPdjR5s=@vger.kernel.org, AJvYcCXFFFu45hWkx53fx+5lheFpiWDJ1mnESG+7zGeRnfqNKwcqtII0sqP2P02YLaAnH01NKCZF5jSRuPB71pvCP/U=@vger.kernel.org X-Gm-Message-State: AOJu0YzDMmRK2F3KSUx/vMjsxqiHUEgRIWibdcxHK5TlNrj86lVMmuRB 0M+eRqqmn/zz2T+imp19b8aDPVoFySIeXTmtYrc+CW1WHHa9xoML X-Gm-Gg: ASbGncuLq1DNE9KvLS6qYSSZ74sTKI8SSuv9kiMa4zxs3cT1POLKH30UeH2FZYFuvLD RsNYc1M3RuWIyZKNuaHFfeJMSgpBxFsmR4+IvNq5H2tip+/uWiYZD3+djBKFjDAkYxQLm+JzLj2 ZBzTyGcN7y8p5Fz8q50r0GHkMDSuYOQFSxeRd9tB1pvjI+MVuLcxPg08j+vf2j+0PDpP/rMoSNh i3ootuMg3cXdi0xFHA2H5BTgL32pap6NwtXVSr6CxRI4WBtDRRH2Djpzcz0bgm6t7g+vnDRCLpC eSeWvJ3KOT9xBcK1Wg== X-Google-Smtp-Source: AGHT+IEkMtCjIvbPFkzHfXIik7N9eD6zl5dtW1DLtls9L3hrLk51QocdtJQDYB6Nn0CfsM/V30qZRw== X-Received: by 2002:a05:600c:5112:b0:434:a5bc:70fc with SMTP id 5b1f17b1804b1-438913cfa0emr245327285e9.8.1737655078077; Thu, 23 Jan 2025 09:57:58 -0800 (PST) Received: from ?IPV6:2001:871:22a:8634::1ad1? ([2001:871:22a:8634::1ad1]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438b31d9a39sm69176005e9.31.2025.01.23.09.57.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Jan 2025 09:57:57 -0800 (PST) Message-ID: <7a84da97-504c-4d1f-9c98-3a152e348c73@gmail.com> Date: Thu, 23 Jan 2025 18:57:56 +0100 Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/3] rust: miscdevice: adjust the rust_misc_device sample to use RegistrationData. To: Alice Ryhl Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Trevor Gross , Arnd Bergmann , Greg Kroah-Hartman , Lee Jones , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250119-b4-rust_miscdevice_registrationdata-v1-0-edbf18dde5fc@gmail.com> <20250119-b4-rust_miscdevice_registrationdata-v1-3-edbf18dde5fc@gmail.com> Content-Language: en-US, de-DE From: Christian Schrefl In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Alice On 21.01.25 4:40 PM, Alice Ryhl wrote: > On Sun, Jan 19, 2025 at 11:11 PM Christian Schrefl > wrote: >> >> Share the mutex stored in RustMiscDevice between all instances using an Arc >> and the RegistrationData of MiscDeviceRegistration. >> >> This is mostly to Demonstrate the capability to share data in this way. >> >> Signed-off-by: Christian Schrefl > > This change causes all open files to share the same value, instead of > it being per-fd. I know, if that is unwanted I'm fine with dropping this patch, it is mostly here to show how patch 2 can be used. > > Alice Cheers Christian