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=-7.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 83DA0C432BE for ; Thu, 19 Aug 2021 15:55:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B7A460FBF for ; Thu, 19 Aug 2021 15:55:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240559AbhHSPzg (ORCPT ); Thu, 19 Aug 2021 11:55:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240066AbhHSPzf (ORCPT ); Thu, 19 Aug 2021 11:55:35 -0400 Received: from mail-ot1-x336.google.com (mail-ot1-x336.google.com [IPv6:2607:f8b0:4864:20::336]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 049AFC061756 for ; Thu, 19 Aug 2021 08:54:59 -0700 (PDT) Received: by mail-ot1-x336.google.com with SMTP id n1-20020a9d1e810000b0290514da4485e4so9310165otn.4 for ; Thu, 19 Aug 2021 08:54:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=C8GgLD2AWU2t7GSbLiX658zk46KtoTZ/x17u8BwJCW8=; b=kJ+Zc6q4hESs1rlxArXMdVZcJZZ4sGxrmkbGiLh4s+XF6edKCJvIC4YrLzXuozGCJS VCGtk2hQOl2BPhDM5JaAm5o9zl7guecdn5n1VJ9I9d5+3XMuAQOWHHag93/IVb+tQOX0 6oGw9CZHgrkVIwx51avoYThAc/nWAYyJNIwoJzJttLdHnliDZjW9ObNnHK3M6MnJuvqq /ubI8/SuulagQBeUd2G+Qv+tU/wfxiiXeAHbzH1F6lvtmTW46KDD4qG1fb1jni2/igCA qqG8DhwrLQv/AWGSv2bkSy1e/HRC6udZj1qGTZ48O8DBz5sYiJlDlQEsVf0aIdE3D3FT naWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=C8GgLD2AWU2t7GSbLiX658zk46KtoTZ/x17u8BwJCW8=; b=j0TFSRfHo3ju8GLhCLS7JiPW3wFFjPOBJr48JdP0F/SBbrQLu5jD1YwVTXFXW6Ll9C KkOeRs+C6wMNWYTSpXGatCtRhoGffeq/ZABHLK9Cxk/Nzl+Z1E/XGVJtreVBBvgrEBFh Dmx7vUOCHjB6cJmLx9Y4LUlD9knx+Szi9xQ5w941RzDc/PfefGP8Z929ho9yygP96oNx Esd/L4UeV1UpyyJeGMJJYs0FDcAOZ5AnLLcZOJGyJRAAo+rzPgUf+ZIvWkfOaS9E/uAF qXPMv5q2K7FDKEky99NQakq/22+S9tiMACDIxYQg/dVkIO2v77ou456mLJxU0n8RNC6F Eo+g== X-Gm-Message-State: AOAM533wkaenWpfcMiecm7mGCPc0NTwLG/BeoylWaktHAv7ZkOOw2mcV 8d5k/jrhPsdGTvV/kjLd0h8OIA== X-Google-Smtp-Source: ABdhPJxhDspJTH8XJzNvW0iH6VGxhAJXd6iAliUoB3do8NpMAjL1zVBPm1jhLn9i3J5+cGKbn/V8aA== X-Received: by 2002:a05:6830:4018:: with SMTP id h24mr12343159ots.161.1629388498365; Thu, 19 Aug 2021 08:54:58 -0700 (PDT) Received: from [192.168.1.30] ([207.135.234.126]) by smtp.gmail.com with ESMTPSA id d6sm679867oiw.0.2021.08.19.08.54.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Aug 2021 08:54:58 -0700 (PDT) Subject: Re: [PATCH 1/1] io_uring: Add register support to other PAGE_SIZE To: wangyangbo Cc: asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, xiehuanjun@uniontech.com References: <24d10cda-445e-10f3-d249-dac254e199e0@kernel.dk> <20210819055657.27327-1-wangyangbo@uniontech.com> From: Jens Axboe Message-ID: Date: Thu, 19 Aug 2021 09:54:57 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210819055657.27327-1-wangyangbo@uniontech.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/18/21 11:56 PM, wangyangbo wrote: > Now allocated rsrc table uses PAGE_SIZE as the size of 2nd-level, and > accessing this table relies on each level index from fixed TABLE_SHIFT > (12 - 3) in 4k page case. In order to correctly work in non-4k page, > define TABLE_SHIFT as non-fixed (PAGE_SHIFT - shift of data) for > 2nd-level table entry number. That's a lot better! Thanks, applied for 5.15. -- Jens Axboe