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=-5.3 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,URIBL_BLOCKED,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 98C74C4363D for ; Wed, 23 Sep 2020 15:18:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6074421D43 for ; Wed, 23 Sep 2020 15:18:31 +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="UwYPfCHC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726671AbgIWPSa (ORCPT ); Wed, 23 Sep 2020 11:18:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726516AbgIWPSa (ORCPT ); Wed, 23 Sep 2020 11:18:30 -0400 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38DE4C0613D1 for ; Wed, 23 Sep 2020 08:18:30 -0700 (PDT) Received: by mail-pg1-x541.google.com with SMTP id 34so14573412pgo.13 for ; Wed, 23 Sep 2020 08:18:30 -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=nsm/SLpnI1gdm4X4OKozNS3TNzCBnlqB2Om83wtrvTM=; b=UwYPfCHCkuZSpIeCGStKHAWyo1CDDFErhXwN/nKs+DtOMuKzWm3Ru4fAVyK2uJC8qt c1kchVce3LxG5k62yYPWGhxExhYubU1CmUlYTQs+vNFL99vt1MJw8R6n85S3UwyCvQxm GohP7WvEJNxqNh7ABOo7NUNhVLiVdZIWF6rVjgqQRQSZAlj9IrtU5El4ZrugnG+jnJNS VSKqmHHY2rgXz4kgHYPDhS9Es4HiK1Icm9gmTPraFvc18zLU6JNSPy5h7SSON2ToEhBj rXI/A07vNJ4Fe0k24pgT3/8KclQsNFK1HEPN24YeSopnBbytHL3kp3YFTw7dulvBdWSN SBYA== 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=nsm/SLpnI1gdm4X4OKozNS3TNzCBnlqB2Om83wtrvTM=; b=WPxj9BZ6m5baJirrC31qZqUcDFdaY+cuY7Xb/AtS1EDC/g1/mWoCDYLhnqCKvW1zL1 4yFnkDXI7/I22Pbp8szk7+JnE7ogRb42dvSuZFdngo/6N7KGXhhMqJE9HsILmc8U4F5c yr3DebJvZbHqEaY3qTl8MJvon33LexK5oxvCpkejtcMcq/PRV4j4Yo15N0F+cPsfXoio u7qNqHrK+17VUX9XgcQuvOTq/H55+oJ4duT6MXbFfUfgvTwi78gPQ0hIKyd1Hfqpcumj tQu4TrS3McK9NFFiAldNPT9aXHEKEJ0BkNBr5/FHN//IrspChWvShT3/Sy82BGOQAicS RXtQ== X-Gm-Message-State: AOAM5305LCpicIlNTA27VbdRFWfnCBEcVmrIBnKdPEcBw5c4BdwF0VRY 8gFko7fSDiwj5/2+OcNIJ8HzpQ== X-Google-Smtp-Source: ABdhPJzJ/ejg9GYFqB77f/Yk8KzNOg6TdYV6IGyGBQKLmXK/daOda5tYkOU0zVvC/ZDIxC6p+dcLzA== X-Received: by 2002:a63:580c:: with SMTP id m12mr188720pgb.99.1600874309643; Wed, 23 Sep 2020 08:18:29 -0700 (PDT) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id 22sm288302pgh.18.2020.09.23.08.18.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 23 Sep 2020 08:18:29 -0700 (PDT) Subject: Re: [PATCH 06/14] block: drop double zeroing To: Julia Lawall Cc: kernel-janitors@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org References: <1600601186-7420-1-git-send-email-Julia.Lawall@inria.fr> <1600601186-7420-7-git-send-email-Julia.Lawall@inria.fr> From: Jens Axboe Message-ID: Date: Wed, 23 Sep 2020 09:18:28 -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: <1600601186-7420-7-git-send-email-Julia.Lawall@inria.fr> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 9/20/20 5:26 AM, Julia Lawall wrote: > sg_init_table zeroes its first argument, so the allocation of that argument > doesn't have to. > > the semantic patch that makes this change is as follows: > (http://coccinelle.lip6.fr/) > > // > @@ > expression x; > @@ > > x = > - kzalloc > + kmalloc > (...) > ... > sg_init_table(x,...) > // Applied for 5.10, thanks. -- Jens Axboe