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=-8.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 51870C4363A for ; Fri, 30 Oct 2020 02:36:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E6DB92076B for ; Fri, 30 Oct 2020 02:36:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726122AbgJ3Cgt (ORCPT ); Thu, 29 Oct 2020 22:36:49 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:6670 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725831AbgJ3Cgt (ORCPT ); Thu, 29 Oct 2020 22:36:49 -0400 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4CMmfR4ZVQz15LL0; Fri, 30 Oct 2020 10:36:47 +0800 (CST) Received: from [10.136.114.67] (10.136.114.67) by smtp.huawei.com (10.3.19.201) with Microsoft SMTP Server (TLS) id 14.3.487.0; Fri, 30 Oct 2020 10:36:43 +0800 Subject: Re: [f2fs-dev] [PATCH v6 2/2] f2fs: add F2FS_IOC_SET_COMPRESS_OPTION ioctl To: Daeho Jeong , , , CC: Daeho Jeong References: <20201030022748.332831-1-daeho43@gmail.com> <20201030022748.332831-2-daeho43@gmail.com> From: Chao Yu Message-ID: <0b009361-7aff-d2e4-59b7-3316a299627d@huawei.com> Date: Fri, 30 Oct 2020 10:36:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20201030022748.332831-2-daeho43@gmail.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.114.67] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/10/30 10:27, Daeho Jeong wrote: > From: Daeho Jeong > > Added a new F2FS_IOC_SET_COMPRESS_OPTION ioctl to change file > compression option of a file. > > struct f2fs_comp_option { > u8 algorithm; => compression algorithm > => 0:lzo, 1:lz4, 2:zstd, 3:lzorle > u8 log_cluster_size; => log scale cluster size > => 2 ~ 8 > }; > > struct f2fs_comp_option option; > > option.algorithm = 1; > option.log_cluster_size = 7; > > ioctl(fd, F2FS_IOC_SET_COMPRESS_OPTION, &option); > > Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu Thanks,