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=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 8E92EC9DCDE for ; Tue, 13 Oct 2020 02:42:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5CE562072C for ; Tue, 13 Oct 2020 02:42:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WkgVHQGO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728694AbgJMCYl (ORCPT ); Mon, 12 Oct 2020 22:24:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728130AbgJMCYl (ORCPT ); Mon, 12 Oct 2020 22:24:41 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 364DBC0613D0 for ; Mon, 12 Oct 2020 19:24:41 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id x16so16407651pgj.3 for ; Mon, 12 Oct 2020 19:24:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=s5asbHEXOVzz3KY0nwEzagtPhdb/NuvhbToUoYEnsfg=; b=WkgVHQGOeM7r/o0qnnDRFFZnzNkzTsnpK+MIc3bNt/s2RdULSgIQA74WP6KBoPQlwD 8hbEiqvcENmWYe51UJqlI4JuDQ/Di4InhZ7+mu6ye6wVuzrvUfJ3esRm5YuW1GdInWua XtSyOrCfEuZA6v5IYPhmYzEN+s9PmGcHPa0deTkiu986kHh9Pf7BbXdqG7Bu9N7cxEV0 epNTn9K9osF9fjOXBRssQdhNxBprsaronaZ3Ddh4+hRtxES6kqjvNefH4mxp98QQGqzu mBgCFAZLwbbikuKRAtH4NQJdXJkHv0gGXoOzaKdxADoS9e4M/LBZQDFFi5mEelvf0PH/ 6ubw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=s5asbHEXOVzz3KY0nwEzagtPhdb/NuvhbToUoYEnsfg=; b=eetVqvyE+pxIELq572T+TbwJY2IJ4xsiT8S/f7z8abrhzDJwikr+C/CfWYiGTvg8EE vW1iYQnLP6KzgcgGD1HHOa+Iflb8ojjs6n4hLolMh1Elg24R4hyI9remtfUIUJ/4lNkR WBvwEEg/zYSnraw9dd7CsT8ZuCIri+BYnl6fKWbaDtr4V21Uf1UIE8DpvHHLkESJrdq+ /S9huoPwPQjTxfh/xiUn4rhjcNgsP86eDRciN043tDK6xzR9wh58DoogXKrd36KYn4nn H7Oez1laZgPt11oPO8mcjGOPXFYPgGfNNnyZPikOXRJkeE6l3wOE8QLw4bq5MV9jesRc sgIg== X-Gm-Message-State: AOAM531Ls5/3sATrgN8ySHaWEdn3e3kRXSCjYNEgdkKuFoE6HvTu0k7D 0+IIBaC93NnskZh/bjQg3nRnK8hhnBU= X-Google-Smtp-Source: ABdhPJx0t8zTOmfObjOqfTTfSf717fNFPX2PMEkJ9ekbnUlvasAMRR4wPqYuUdxrOAMqHwJUISqTXw== X-Received: by 2002:a62:7cd4:0:b029:154:f9ee:320b with SMTP id x203-20020a627cd40000b0290154f9ee320bmr26690911pfc.26.1602555880156; Mon, 12 Oct 2020 19:24:40 -0700 (PDT) Received: from daehojeong1.seo.corp.google.com ([2401:fa00:d:1:a6ae:11ff:fe18:6ce2]) by smtp.gmail.com with ESMTPSA id d194sm10581110pfd.172.2020.10.12.19.24.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Oct 2020 19:24:39 -0700 (PDT) From: Daeho Jeong To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, kernel-team@android.com Cc: Daeho Jeong Subject: [PATCH 1/2] f2fs: add F2FS_IOC_GET_COMPRESS_OPTION ioctl Date: Tue, 13 Oct 2020 11:24:28 +0900 Message-Id: <20201013022429.454161-1-daeho43@gmail.com> X-Mailer: git-send-email 2.28.0.1011.ga647a8990f-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Daeho Jeong Added a new F2FS_IOC_GET_COMPRESS_OPTION ioctl to get file compression option of a file. Signed-off-by: Daeho Jeong --- fs/f2fs/f2fs.h | 7 +++++++ fs/f2fs/file.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 53fe2853579c..a33c90cf979b 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -433,6 +433,8 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal, _IOR(F2FS_IOCTL_MAGIC, 19, __u64) #define F2FS_IOC_SEC_TRIM_FILE _IOW(F2FS_IOCTL_MAGIC, 20, \ struct f2fs_sectrim_range) +#define F2FS_IOC_GET_COMPRESS_OPTION _IOR(F2FS_IOCTL_MAGIC, 21, \ + struct f2fs_comp_option) /* * should be same as XFS_IOC_GOINGDOWN. @@ -481,6 +483,11 @@ struct f2fs_sectrim_range { u64 flags; }; +struct f2fs_comp_option { + u8 algorithm; + u8 log_cluster_size; +}; + /* for inline stuff */ #define DEF_INLINE_RESERVED_SIZE 1 static inline int get_extra_isize(struct inode *inode); diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index ef5a844de53f..7e64259f6f5e 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3936,6 +3936,33 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg) return ret; } +static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg) +{ + struct inode *inode = file_inode(filp); + struct f2fs_comp_option option; + + if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) + return -EOPNOTSUPP; + + inode_lock(inode); + + if (!f2fs_compressed_file(inode)) { + inode_unlock(inode); + return -EINVAL; + } + + option.algorithm = F2FS_I(inode)->i_compress_algorithm; + option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size; + + inode_unlock(inode); + + if (copy_to_user((struct f2fs_comp_option __user *)arg, &option, + sizeof(option))) + return -EFAULT; + + return 0; +} + long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp))))) @@ -4024,6 +4051,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return f2fs_reserve_compress_blocks(filp, arg); case F2FS_IOC_SEC_TRIM_FILE: return f2fs_sec_trim_file(filp, arg); + case F2FS_IOC_GET_COMPRESS_OPTION: + return f2fs_ioc_get_compress_option(filp, arg); default: return -ENOTTY; } @@ -4194,6 +4223,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: case F2FS_IOC_SEC_TRIM_FILE: + case F2FS_IOC_GET_COMPRESS_OPTION: break; default: return -ENOIOCTLCMD; -- 2.28.0.1011.ga647a8990f-goog