Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp3171172pxj; Sun, 20 Jun 2021 12:15:13 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyn9aFzPt7q5PpPNe96pwS2FcB3MfVVL2T3Kev9otq2KeluYWdwReTJhec/WdYoe8Sd3h8R X-Received: by 2002:a17:907:1611:: with SMTP id hb17mr7720151ejc.450.1624216513182; Sun, 20 Jun 2021 12:15:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1624216513; cv=none; d=google.com; s=arc-20160816; b=vW0pUh7IpENIszKZkopjQgi4FItcp427PJzdCJWnMFVb1Ytscyj3PuiiTHA0C/Hhnx D09rwSAYF1gw8vWp2Vp7Kdsrpf4C4MFF0b3k1wIJqWoaTA2qogvyekb2TIUIgVjdJ5O9 3+DvaPPt8RMl4ruLziiTH8jrX3LxSdDI+fJvw1tMFlA8gtQvlEBwPYzW9rF7o8DSPI3o unSp5LFnPakmUUKKy8I6HovwpNP+swaN+2B95fcNxp0u4oSP9Or6QnWykKPjlKZ8eYtU WacrJpScWkT3dlkpK837pfkIn9k+176DKN6l0WC/nnUWn/Kvhr5gPuEbZ3aIQV6iKKgM ek3A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :to:subject:dkim-signature; bh=xZoJUVoPO+RB8SESdfTr4F9sc2D3ixJYDrih1im5nmc=; b=zhh0c3wD2UJ/OT9U3qC0Rr7ZGlBokkVbMiKdCKg/+4kpFbZNFQDcB6iACJYVry5yiR Zg863rv7fc5PsVQIcr8nyEx1SZodceYsymJz8aqm6Yv9tS5bVkfVInB/2Cwidlg3ytSQ /MSkNQieDHMeTireGCcyN/Ar05LicNFlKIq8CKsB889LJXTJg3+RBVFnLVHRMrSgV7N0 CseqhufpBkuu4SmhlvzWe0pWdngrl83exrIQbEW/YHotHtadjKfXKQLA+NtmBWoLvY5r HkeaWcmjlRpF7guDJPGYmn6PkkrXdzseLt+/wyjJjkrh7ZaKKZyOXx/SUGXXWr+R6o21 7LwA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b="T/tSzCPt"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id 30si9136469ejg.423.2021.06.20.12.14.50; Sun, 20 Jun 2021 12:15:13 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b="T/tSzCPt"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230005AbhFTTJb (ORCPT + 99 others); Sun, 20 Jun 2021 15:09:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229875AbhFTTJb (ORCPT ); Sun, 20 Jun 2021 15:09:31 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 20CA5C061574; Sun, 20 Jun 2021 12:07:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:To: Subject:Sender:Reply-To:Cc:Content-ID:Content-Description; bh=xZoJUVoPO+RB8SESdfTr4F9sc2D3ixJYDrih1im5nmc=; b=T/tSzCPtHT0j0ZY9JyGxnmn14E LIvBHG6aFefA9Tx+Ifsds6ZPoHvJJezKPwz8wHoBtuFffbQWOA8NXLxglUcUYQ2NrYNHy6Vp+SBtg pIDZp6GQHspR2WvPcnh3tPU8ilnybJrrdAl+TtVJ6n4pRfLDF/KyUz3IwxcBMkyveobiPoXi+oBPs UZVkOPEj6ei7jg6ikzK6JoZ0A3lRrMPTRVSMzdDgk8ZD5NnyEYkSLqhFam4ZZXuqcN1FDdip0Zbq1 E+wMR4yJUUSMpLgeRSXRUayTAXo7/rQaEvP3FQ83mv2YJSSKlDAzH4BkpQKzltBD131tekAos0nQq 5x7kOgGw==; Received: from [2601:1c0:6280:3f0::aefb] by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lv2mr-001TN2-4f; Sun, 20 Jun 2021 19:07:17 +0000 Subject: Re: [PATCH v2] io_uring: reduce latency by reissueing the operation To: Olivier Langlois , Jens Axboe , Pavel Begunkov , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Randy Dunlap Message-ID: Date: Sun, 20 Jun 2021 12:07:16 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: 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 6/20/21 12:05 PM, Olivier Langlois wrote: > - return false; > + return ret?IO_ARM_POLL_READY:IO_ARM_POLL_ERR; Hi, Please make that return expression more readable. thanks. -- ~Randy