Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4045AC636D7 for ; Fri, 17 Feb 2023 20:38:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229826AbjBQUiN (ORCPT ); Fri, 17 Feb 2023 15:38:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229836AbjBQUiL (ORCPT ); Fri, 17 Feb 2023 15:38:11 -0500 Received: from mail-io1-xd2e.google.com (mail-io1-xd2e.google.com [IPv6:2607:f8b0:4864:20::d2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 832902A6DC for ; Fri, 17 Feb 2023 12:38:09 -0800 (PST) Received: by mail-io1-xd2e.google.com with SMTP id f26so1001204ion.7 for ; Fri, 17 Feb 2023 12:38:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=6QW1U0BdBx7Jx8kPGyXfr0Re3UnOpioEFLwDuydQbjM=; b=03Qqa8iulXI39rGuZGvUnr1cd60q0K6fePLUgetpk/SjU81oBjlBQpzV/77WUPU928 lO5N0nk8iKBudMAGpCzboTfrxNFL1VVF08fpkHFT0hwHf1pLKxLNBoLZrdJJHJlqS7sJ CIVsowbrrq87cc/k6aM2wwakwL4S6Z5y++4RF9cyTqeFwV+ZveU76zEYw9J4vLJ9Pt4Q JZ7WqzMIAos1A+oS9NmCEXzFT/GcxJEQ8KghXYNcw2kZF6kfiaByHbdSZsJ9ahLZLuPy KBDkvLW7qZSEVY2Q5A8B3gygAkijQZNJ9YdqKojPCSc1fvI9fU6E04t6PBqGnxG7ItNY +m9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6QW1U0BdBx7Jx8kPGyXfr0Re3UnOpioEFLwDuydQbjM=; b=vzacA7syaLklRWxAK3lQYLb/TW4EZNyeuGttGjHs/nbI7nLJ9b1TlFkWozNuo0+9eQ WBkiavkNFxv4xlRkWow5g6DdWQFRdyDXx2mJlCWUqCjPNnsC3bMpGDnD3szqAZQuHn9v fK1RASqxkRTebQh6os7AjIWyDoECZN87tiE3n81RDcANKg4C2/ngHbFVZWY/o0Umqb6D 6vlO9PytCymNuAcc6eWc/IiBV+oaC6ohiq8nHhwXX6QkxK4237hC1FSgsIeFPvDGnRBO /xCLGQmgxZcOTSwT0K7pc9VZL8snRawyx26Lk+DybkLhG9hXV5MdbsmdGQRVczWZglQc TNxQ== X-Gm-Message-State: AO0yUKVDWYPHYNNMMzecBcWfKp3fVOkSx2Vw5HEXKzXC9QNs/dBtIpXM r7HkKoRPaFBVCN88zMjigiBpOw== X-Google-Smtp-Source: AK7set8hN4MPWUVNlWZduo6D5QmHgRQl2zP/sHLvJowbKiJcCnsTqE0hGcGJTzdO40QqrbiSa0r6Lw== X-Received: by 2002:a05:6602:26d3:b0:70a:9fce:853c with SMTP id g19-20020a05660226d300b0070a9fce853cmr2300877ioo.2.1676666288852; Fri, 17 Feb 2023 12:38:08 -0800 (PST) Received: from [127.0.0.1] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id bh25-20020a056602371900b00740710c0a65sm1709811iob.47.2023.02.17.12.38.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Feb 2023 12:38:08 -0800 (PST) From: Jens Axboe To: Christophe JAILLET Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, linux-block@vger.kernel.org In-Reply-To: <6f249f9b02a3490283ef0278096556de41aa0cf0.1676626130.git.christophe.jaillet@wanadoo.fr> References: <6f249f9b02a3490283ef0278096556de41aa0cf0.1676626130.git.christophe.jaillet@wanadoo.fr> Subject: Re: [PATCH] blk-mq: Reorder fields in 'struct blk_mq_tag_set' Message-Id: <167666628814.273360.17235110926752683174.b4-ty@kernel.dk> Date: Fri, 17 Feb 2023 13:38:08 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.13-dev-ada30 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 17 Feb 2023 10:29:10 +0100, Christophe JAILLET wrote: > Group some variables based on their sizes to reduce hole and avoid padding. > On x86_64, this shrinks the size of 'struct blk_mq_tag_set' > from 304 to 296 bytes. > > Applied, thanks! [1/1] blk-mq: Reorder fields in 'struct blk_mq_tag_set' commit: d88cbbb39b4db057feb1552de31f22c02a21b36f Best regards, -- Jens Axboe