From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) (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 1A9E01805E; Thu, 19 Dec 2024 14:28:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.60.130.6 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734618541; cv=none; b=q8fRehS6L/MTrrs6SWunmh1+pwKympqW6ujH58G4iBOoGEvFRpwYRMCMT8v9VS/Zb8lXttkBEQg4GoN6CNm8BWc/8ajnCXSymZ+6M4JK43v77nRo0p3oHtJJKFRkmQA4QOtRkfiVqoBh88y1uwakLyyQs7HTApoC+OWgt0mBm3k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734618541; c=relaxed/simple; bh=ik90dd98h/RzD3mNI93eG/7B8uw/H7kZzlpu+ouZ+VM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=qGRzeZdgjiNxXmK1vlE5X0J6oM3E41FvXwNkYRYRyP4bpuQxY+cJvNRk2k8PWiJeMvTZhJONdUAxenKJT4hN51RWgUT64Bc6pBs9Wmr4EEMP12Dmkg5GQTP7B/cVAwqFz6uikgN2prhEydgfPWpn/x4eTn9HdNB76dwmH6RNvDA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=Vtdn/BOl; arc=none smtp.client-ip=178.60.130.6 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="Vtdn/BOl" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=KZXVLk08KOTgBa2eUAaNnxKwPWZu+/wmQaAArFb3jy8=; b=Vtdn/BOlZwpEYYc5qhGZsNckQ1 jJ0ciZYVDJk9kg2WCh8HrtRv2/rt7B+3tHW6n2TL4y0cmzE5JL0MQWlGxUCG7IB+58imnfK2av8C3 zTwMhfjdu4dEUMukU0VQ7gyTwInOiJ74NzNpvJd+jEM8Y4ytDzQPuZJvhqNmFRApsw8URhgKVtAmn zrab71RLQg1x+lrCWFkY7tMvOwnT125SN5CGhNyvI+RSJzzCvc2MrUyP5frH7VxWhqfbd72JscGrO 3VkF92wwGDCg7JNcqpRr8rFKmGuzYAlK6yLSfBxnURc+db5Mg5pt53PmGwADxv/aY+GMFuL7mJto/ WGl/wXJA==; Received: from [179.118.190.62] (helo=[192.168.15.100]) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) (Exim) id 1tOHVz-005H33-66; Thu, 19 Dec 2024 15:28:35 +0100 Message-ID: Date: Thu, 19 Dec 2024 11:28:27 -0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/3] futex: Create set_robust_list2 To: Peter Zijlstra Cc: Thomas Gleixner , Ingo Molnar , Darren Hart , Davidlohr Bueso , Arnd Bergmann , sonicadvance1@gmail.com, linux-kernel@vger.kernel.org, kernel-dev@igalia.com, linux-api@vger.kernel.org, Nathan Chancellor , Vinicius Peixoto References: <20241217174958.477692-1-andrealmeid@igalia.com> <20241217203140.GH11133@noisy.programming.kicks-ass.net> Content-Language: en-US From: =?UTF-8?Q?Andr=C3=A9_Almeida?= In-Reply-To: <20241217203140.GH11133@noisy.programming.kicks-ass.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Em 17/12/2024 17:31, Peter Zijlstra escreveu: > On Tue, Dec 17, 2024 at 02:49:55PM -0300, André Almeida wrote: >> This patch adds a new robust_list() syscall. The current syscall >> can't be expanded to cover the following use case, so a new one is >> needed. This new syscall allows users to set multiple robust lists per >> process and to have either 32bit or 64bit pointers in the list. > > Last time a whole list of short comings of the current robust scheme > were laid bare. I feel we should address all that if we're going to > create a new scheme. > Are you talking about [1] or is there something else? [1] https://lore.kernel.org/lkml/87jzdjxjj8.fsf@oldenburg3.str.redhat.com/