From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C672255F53; Thu, 17 Jul 2025 23:48:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752796080; cv=none; b=OhwOewTAXy4VdplndxGRTQ5rU+Ds9//ZTnG8WipiOjK6HnpoCF8ifhsro1kNxqQsLFsrrN4AEhATwZNLH8GngYasFVOTmVWHRT9A0cdQ+gDLy+Y/PuCyoqh/tQnApwGWWV7sWXcTBUf3pGhF1J0o6YgU2ArCYs1XrbDSOjuyB/M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752796080; c=relaxed/simple; bh=JeYv39w2MTaAnEH6C45hdB/CpeLfsS8BX0mRO6+/G1I=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=fDfvT9fa2nH5okqUIqDgxL/OmGCWwvFOG0mIsRJN8qyXb6XKmrdNC0thbvKjNUUjhrxdSNwTFRPlK/UipRkJH1rPyFEvtO5MMmNSFohack3Nz65hZY9JsQfVy8H0zvgUP5QKm/5MTaCAR4/TQ5rjP8bYRgSZOfgNp0GyOIXGsYs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dZSSSPF5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dZSSSPF5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E9957C4CEE3; Thu, 17 Jul 2025 23:47:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752796080; bh=JeYv39w2MTaAnEH6C45hdB/CpeLfsS8BX0mRO6+/G1I=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=dZSSSPF5mUZUsiAJzoA94Dkba3fXzGcCODQh7JMtbnId0VLDAnhfhx8z00QNCvtMJ mw3fNagS7dttyS4NLJ8a8tkZXnRNv4C2Jt/7gQqqSusfSGD9hztLIOBFnoCO4O+MXV OX4vyk+7/HlaKRwfzRWkcGVRObmDCDHTcJ7d32ZtGBZzqoKb6BvjZVo4PTzRriDMeo 1EHlBjA4Roasuzv/md4RjNbbcsJBlvvb/OQuhBz1s5plvvZJmL07lgAFaSVNcQk/Gu 68EXNVc+2BsqrtmEGlR4GbT1lWkqkDscK8Ex/EyKvYgeVF0twjd9Dzj7MS6wYe3s9m Qyvt8TU+5LO6A== Date: Thu, 17 Jul 2025 16:47:59 -0700 Subject: [PATCH 10/10] fuse2fs: implement statx From: "Darrick J. Wong" To: tytso@mit.edu Cc: joannelkoong@gmail.com, miklos@szeredi.hu, John@groves.net, linux-fsdevel@vger.kernel.org, bernd@bsbernd.com, linux-ext4@vger.kernel.org, neal@gompa.dev Message-ID: <175279461900.716436.1047020432825856932.stgit@frogsfrogsfrogs> In-Reply-To: <175279461680.716436.11923939115339176158.stgit@frogsfrogsfrogs> References: <175279461680.716436.11923939115339176158.stgit@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Darrick J. Wong Implement statx. Signed-off-by: "Darrick J. Wong" --- misc/fuse2fs.c | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) diff --git a/misc/fuse2fs.c b/misc/fuse2fs.c index 3bded0fdd21e2a..6d2ed7da9cc09e 100644 --- a/misc/fuse2fs.c +++ b/misc/fuse2fs.c @@ -23,6 +23,7 @@ #include #endif #include +#include #include #include #define FUSE_DARWIN_ENABLE_EXTENSIONS 0 @@ -1646,6 +1647,111 @@ static int op_getattr_iflags(const char *path, struct stat *statbuf, } #endif +#if FUSE_VERSION >= FUSE_MAKE_VERSION(3, 18) && defined(STATX_BASIC_STATS) +static inline void fuse2fs_set_statx_attr(struct statx *stx, + uint64_t statx_flag, int set) +{ + if (set) + stx->stx_attributes |= statx_flag; + stx->stx_attributes_mask |= statx_flag; +} + +static int fuse2fs_statx(struct fuse2fs *ff, ext2_ino_t ino, + uint32_t statx_mask, struct statx *stx, size_t size) +{ + struct ext2_inode_large inode; + ext2_filsys fs = ff->fs;; + dev_t fakedev = 0; + errcode_t err; + struct timespec tv; + + if (size < sizeof(struct statx)) + return translate_error(fs, ino, EOPNOTSUPP); + + err = fuse2fs_read_inode(fs, ino, &inode); + if (err) + return translate_error(fs, ino, err); + + memcpy(&fakedev, fs->super->s_uuid, sizeof(fakedev)); + stx->stx_mask = STATX_BASIC_STATS | STATX_BTIME; + stx->stx_dev_major = major(fakedev); + stx->stx_dev_minor = minor(fakedev); + stx->stx_ino = ino; + stx->stx_mode = inode.i_mode; + stx->stx_nlink = inode.i_links_count; + stx->stx_uid = inode_uid(inode); + stx->stx_gid = inode_gid(inode); + stx->stx_size = EXT2_I_SIZE(&inode); + stx->stx_blksize = fs->blocksize; + stx->stx_blocks = ext2fs_get_stat_i_blocks(fs, + EXT2_INODE(&inode)); + EXT4_INODE_GET_XTIME(i_atime, &tv, &inode); + stx->stx_atime.tv_sec = tv.tv_sec; + stx->stx_atime.tv_nsec = tv.tv_nsec; + + EXT4_INODE_GET_XTIME(i_mtime, &tv, &inode); + stx->stx_mtime.tv_sec = tv.tv_sec; + stx->stx_mtime.tv_nsec = tv.tv_nsec; + + EXT4_INODE_GET_XTIME(i_ctime, &tv, &inode); + stx->stx_ctime.tv_sec = tv.tv_sec; + stx->stx_ctime.tv_nsec = tv.tv_nsec; + + EXT4_INODE_GET_XTIME(i_crtime, &tv, &inode); + stx->stx_btime.tv_sec = tv.tv_sec; + stx->stx_btime.tv_nsec = tv.tv_nsec; + + dbg_printf(ff, "%s: ino=%d atime=%lld.%d mtime=%lld.%d ctime=%lld.%d btime=%lld.%d\n", + __func__, ino, + (long long int)stx->stx_atime.tv_sec, stx->stx_atime.tv_nsec, + (long long int)stx->stx_mtime.tv_sec, stx->stx_mtime.tv_nsec, + (long long int)stx->stx_ctime.tv_sec, stx->stx_ctime.tv_nsec, + (long long int)stx->stx_btime.tv_sec, stx->stx_btime.tv_nsec); + + if (LINUX_S_ISCHR(inode.i_mode) || + LINUX_S_ISBLK(inode.i_mode)) { + if (inode.i_block[0]) { + stx->stx_rdev_major = major(inode.i_block[0]); + stx->stx_rdev_minor = minor(inode.i_block[0]); + } else { + stx->stx_rdev_major = major(inode.i_block[1]); + stx->stx_rdev_minor = minor(inode.i_block[1]); + } + } + + fuse2fs_set_statx_attr(stx, STATX_ATTR_COMPRESSED, + inode.i_flags & EXT2_COMPR_FL); + fuse2fs_set_statx_attr(stx, STATX_ATTR_IMMUTABLE, + inode.i_flags & EXT2_IMMUTABLE_FL); + fuse2fs_set_statx_attr(stx, STATX_ATTR_APPEND, + inode.i_flags & EXT2_APPEND_FL); + fuse2fs_set_statx_attr(stx, STATX_ATTR_NODUMP, + inode.i_flags & EXT2_NODUMP_FL); + + return 0; +} + +static int op_statx(const char *path, uint32_t statx_flags, uint32_t statx_mask, + struct statx *stx, size_t size, struct fuse_file_info *fi) +{ + struct fuse_context *ctxt = fuse_get_context(); + struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data; + ext2_ino_t ino; + int ret = 0; + + FUSE2FS_CHECK_CONTEXT(ff); + fuse2fs_start(ff); + ret = fuse2fs_file_ino(ff, path, fi, &ino); + if (ret) + goto out; + ret = fuse2fs_statx(ff, ino, statx_mask, stx, size); +out: + fuse2fs_finish(ff, ret); + return ret; +} +#else +# define op_statx NULL +#endif static int op_readlink(const char *path, char *buf, size_t len) { @@ -6351,6 +6457,7 @@ static struct fuse_operations fs_ops = { #endif #if FUSE_VERSION >= FUSE_MAKE_VERSION(3, 18) .syncfs = op_syncfs, + .statx = op_statx, #endif #ifdef HAVE_FUSE_IOMAP .iomap_begin = op_iomap_begin,