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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 119BCC433E0 for ; Wed, 8 Jul 2020 22:33:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DE31C20772 for ; Wed, 8 Jul 2020 22:33:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="aKLNGyqb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726281AbgGHWdZ (ORCPT ); Wed, 8 Jul 2020 18:33:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726174AbgGHWdW (ORCPT ); Wed, 8 Jul 2020 18:33:22 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF2B1C08C5DC for ; Wed, 8 Jul 2020 15:33:22 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id 207so112119pfu.3 for ; Wed, 08 Jul 2020 15:33:22 -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=cXCFTCxGdtV8MyFCzLPx+cLEa/wOMXI2VsbmUQ1pcc4=; b=aKLNGyqbfjlfypU3XSMi37ElWycSd5QOuRPRrHJZ4agy9sAPP83A9uImVzcMrPsCyW v4YrXUXCFMXFV1OPnsI6cv6ewTt2HnhMuY8YGdzuPwtivUTysB/nKgsLLCTDm5GGAfs4 FwEZP9zGAZc1EbElR2XmPp0/xhwzO08Yc1gtgUKbC7+cN7/oLMht6hdbtTqJ1LHZFP75 pK4yzqjIliJ8DsH8cNHobVsZaYyZWgTSGzQ7tS4t2UZYxVPxgNmD/45Rz9eSMRxIZ1Ta D477T9OBtjhr0bN/mqQaZX8WtKPXbQ+ZtnMtbID3Gat5wHy72kqpQR8TXvXdq5rk2wlR v1zA== 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=cXCFTCxGdtV8MyFCzLPx+cLEa/wOMXI2VsbmUQ1pcc4=; b=jvkEBXIWvCyId6kKCOCTOpOkxsJ6RS8uVZFiHxZwyDKiFr3ui5Q7uDn+2dz1Pndly3 WSgI4gpKP85J0BUci8GAu2V6g8hepbS0MnonEtnwrNPy13ct8CpFFdGH1coC5eHphwcg JchjA0xp6j/DpcYfnO8efnDo+jdF1h4x1hywN9VumkNYoTJHMvQ6N/jwP+8Yu+rD0vxf bsn3qUT/2rX3KAm46is8WSHasqQmm36a3IF30bsC6oVchh8c9asWx9R3IHgRfFzsjtXn BAvqoyVnqTEFnJAzyiGOAfW6z9b3bS/tK3EyG3VyyDvFAA6BKTy5hIH79x9j6aJKsLyd yhhg== X-Gm-Message-State: AOAM532P2/1KZyq5fPHEQf+DviGv1vjQoY3MxxD5P5CCle77ePeFNw/w HTw77TEf5pWNUjg+VkHaeTI8Dw== X-Google-Smtp-Source: ABdhPJwmW+0eXcpEdnrPdMds8vC0mMjfwyN7OLN0bdEGS8KuBNIQf3vaSkBw9U+RNKl+HF922AzeHg== X-Received: by 2002:a62:140e:: with SMTP id 14mr12167903pfu.196.1594247602171; Wed, 08 Jul 2020 15:33:22 -0700 (PDT) Received: from [192.168.1.182] ([66.219.217.173]) by smtp.gmail.com with ESMTPSA id s22sm697987pfm.164.2020.07.08.15.33.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 08 Jul 2020 15:33:21 -0700 (PDT) Subject: Re: [PATCH 0/2] Remove kiocb ki_complete To: "Matthew Wilcox (Oracle)" Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, Kanchan Joshi , Javier Gonzalez References: <20200708222637.23046-1-willy@infradead.org> From: Jens Axboe Message-ID: <807e622e-429f-28a0-5756-765648fc5bcb@kernel.dk> Date: Wed, 8 Jul 2020 16:33:20 -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: <20200708222637.23046-1-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/8/20 4:26 PM, Matthew Wilcox (Oracle) wrote: > Save a pointer in the kiocb by using a few bits in ki_flags to index > a table of completion functions. I ran polled and regular IO testing through io_uring, which exercises both completions that we have in there, and it works just fine for me. Didn't test anything beyond that, outside of ensuring the kernel also booted ;-) -- Jens Axboe