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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 67EA7C4338F for ; Fri, 20 Aug 2021 09:37:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4751D61053 for ; Fri, 20 Aug 2021 09:37:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233976AbhHTJh4 (ORCPT ); Fri, 20 Aug 2021 05:37:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236783AbhHTJhx (ORCPT ); Fri, 20 Aug 2021 05:37:53 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4BB42C061575 for ; Fri, 20 Aug 2021 02:37:16 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id f13-20020a1c6a0d000000b002e6fd0b0b3fso7011273wmc.3 for ; Fri, 20 Aug 2021 02:37:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=4cczGF+stmml1fk77Dmn64t7T4N9y6xg8DyjR/GayjU=; b=UsfbjDdAnrxOgJZylTzRVsIR6Fk9QkCiws25fW2FhUQIhS9rLwKYUtpCX/B8zOLcS4 +u6A6PD/oCZuaRytoz52OF1JSQAUsyEpUV9WYROasLAQwOqCJbQpAD9qL5nONkgbs+ZY X6s5fsIv4F2uGdf57J3cGiYz30bO8A+o0A2mVKSYC6Eb1lv9++UijPiHXxaODGNV5QQP X3qa6acjSlLJV6GZE9BZrHcJ1luLjd9eLv20UmFzFmduITG1t1h4EUhbOzlgp1d3TUgo wgb0SoZj6vusUB1FLJ0BgNbkJEFFP8F8+htBWLl3BmzcKzoUOpDdX2ngAujoZKKQztfG jTHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=4cczGF+stmml1fk77Dmn64t7T4N9y6xg8DyjR/GayjU=; b=pUyoDjkRA/Em7ZM5GXO/YHjcdby1JwWL+e5UrCgrcRtGT4Q0msP1vTzjbA+E7LAvrl SqHMN78jxvtdinK7kuFVQ86ED8ElOsNiUkuzvJtgzjszEJzThJ/P/oL7bqsHEJvwO/1p nK0Kr67DTJGVrme6UmPZzjffcXzWip5sKv1AjGrwFhkrWFxSg/dMcrIVj76kcp2ND7DZ f6Rs9nd8OJ+4CZSXRUYNlqjpzI8D/1HdcSffG5lUEYJG4tiLqONk94f1YwBT2p9xlsDG ooDFotauDuKUZwBlBENPXL1EmtikSOQkJfkAY8kAFSdDYS0ue+dp28yxnCYZ8d6ozhHd 3+dQ== X-Gm-Message-State: AOAM531+3ls1SS8gUYaengDR4olpWJZEL9rAFavKdMNdRVYrf0/z9PBC YhH8+udI3A2WTCdduyuGaVM= X-Google-Smtp-Source: ABdhPJzjgiin8eQr0+tLRWH4GTpuKvozdshUD99wNHGjSJ2HUpA3Pfyy/UqaU0gi74IvRHSF7AOmVQ== X-Received: by 2002:a1c:e912:: with SMTP id q18mr2945749wmc.21.1629452234824; Fri, 20 Aug 2021 02:37:14 -0700 (PDT) Received: from localhost.localdomain ([85.255.233.190]) by smtp.gmail.com with ESMTPSA id z7sm9693402wmi.4.2021.08.20.02.37.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Aug 2021 02:37:14 -0700 (PDT) From: Pavel Begunkov To: Jens Axboe , io-uring@vger.kernel.org Subject: [PATCH 0/3] changes around fixed rsrc Date: Fri, 20 Aug 2021 10:36:34 +0100 Message-Id: X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org 1-2 put some limits on the fixed file tables sizes, files and buffers. 3/3 adds compatibility checks for ->splice_fd_in, for all requests buy rw and some others, see the patch message. All based on 5.15 and merked stable, looks to me as the best way. Pavel Begunkov (3): io_uring: limit fixed table size by RLIMIT_NOFILE io_uring: place fixed tables under memcg limits io_uring: add ->splice_fd_in checks fs/io_uring.c | 61 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 25 deletions(-) -- 2.32.0