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 X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C1B2C388F9 for ; Wed, 4 Nov 2020 17:54:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40C572072E for ; Wed, 4 Nov 2020 17:54:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604512458; bh=8g03AVXwYhpz0t747R0HfG1SZQCLCJU+ahXPoZD3ac8=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=u7LCwrfoOOpOxUmTmi4T1VjvBLLFsyeoHr4IgJlKA4s594lESrzsj4680lv5AA/2m BNC6rd0T3KEWufOZu9fcoyRjs5jVSlSn6moHS5KYJdabv9VjF8KrKIqRAzhiyBhulp X7Dy105UlEPDe3CvntOCMLnvnFJQFNGIhFtTbGIg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732125AbgKDRyR (ORCPT ); Wed, 4 Nov 2020 12:54:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730865AbgKDRyQ (ORCPT ); Wed, 4 Nov 2020 12:54:16 -0500 Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7668CC0613D3 for ; Wed, 4 Nov 2020 09:54:16 -0800 (PST) Received: by mail-lj1-x234.google.com with SMTP id p15so23959436ljj.8 for ; Wed, 04 Nov 2020 09:54:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KDF/IVt/yM5vKvfY6fRo0fNzEAF8Z0Cn2GtQDil02vc=; b=hXhtTtO+S8d2VZNihnap8ENkU4okxgo2j5jRC3/VfbThfzLKjoY9rFtASjZkhfK3s3 qhVE8hIVQgRDoaRjKV+sJOgqdoZDAN9jHBYe4N0IyHtI1g8IALfcuzpLWg2QZ6LIm8LB c/aLMvqxGizeQKNfljmxCLZHLcPpM+v9Z3VkM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KDF/IVt/yM5vKvfY6fRo0fNzEAF8Z0Cn2GtQDil02vc=; b=jifiI6Eey37yfU7WuxufPtC/1WI8UBvvUyv6QAAKKN3XfeAduR1XxZOzCJZHJ+2akD fmjZ/0Y77I8dWTfCG9oxOYl4p1IxhXbP7WVTZTEbnLxf6Fe4t3sZYdrctIUDpHg9F6Sf pXUo5ITdHkkB6xkIL+MnfpL15nk6MB8eQB+zKxKtTkaijb5PUsgh/9GK9/QrVDVqaUSo PNbSJ9yc6Lre4eM5qItZghS2dhdFnvHJbK7TEuPKGt9/g2zM1ehtFCx9xEDqxNnFxk0c wdR+wxWwDln8kIaizcGmPOiJnNAQsDZI66mLMWw+mqcO6H1JYq79ajA3VlFla1eiOLbN YYYw== X-Gm-Message-State: AOAM533iLWovz/ReIquj7ZhDqusCEJnJQsJSf7d8vZQlt6YOpbhHJmP1 4Q6+Au8fGPDMToe0Ot+nFIQchjVDVe/I0Q== X-Google-Smtp-Source: ABdhPJzod3vRPg+VrX283hY7qVSvjbw2J2ekPbIMNf/7cB8pB4V76c6uMxu7YNV8l/kBB310v76UgQ== X-Received: by 2002:a2e:584e:: with SMTP id x14mr10279725ljd.335.1604512453695; Wed, 04 Nov 2020 09:54:13 -0800 (PST) Received: from mail-lj1-f169.google.com (mail-lj1-f169.google.com. [209.85.208.169]) by smtp.gmail.com with ESMTPSA id c1sm575344lji.101.2020.11.04.09.54.12 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Nov 2020 09:54:12 -0800 (PST) Received: by mail-lj1-f169.google.com with SMTP id 11so4366383ljf.2 for ; Wed, 04 Nov 2020 09:54:12 -0800 (PST) X-Received: by 2002:a2e:3e1a:: with SMTP id l26mr11736406lja.285.1604512452220; Wed, 04 Nov 2020 09:54:12 -0800 (PST) MIME-Version: 1.0 References: <20201104082738.1054792-1-hch@lst.de> In-Reply-To: <20201104082738.1054792-1-hch@lst.de> From: Linus Torvalds Date: Wed, 4 Nov 2020 09:53:56 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: support splice reads on seq_file based procfs files v2 To: Christoph Hellwig Cc: Al Viro , Greg KH , Alexey Dobriyan , linux-fsdevel , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 4, 2020 at 12:29 AM Christoph Hellwig wrote: > > Greg reported a problem due to the fact that Android tests use procfs > files to test splice, which stopped working with 5.10-rc1. This series > adds read_iter support for seq_file, and uses those for various seq_files > in procfs to restore splice read support. Ack. Al, do you want me to take these directly - we'll need this to avoid the regression in 5.10? Or do you have other things pending and I'll see them in a pull request. Linus