diff options
| author | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2024-08-22 15:09:02 +0300 |
|---|---|---|
| committer | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2024-09-03 16:58:44 +0300 |
| commit | 6b39bfaeec440443037c38701204b92b106c953c (patch) | |
| tree | 4908856f54757a67053d52e0f93980f0d875049b /fs/ntfs3/file.c | |
| parent | 9a2d6a40b8a1a6fa62eaf47ceee10a5eef62284c (diff) | |
fs/ntfs3: Add support for the compression attribute
Support added for empty files and directories only.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'fs/ntfs3/file.c')
| -rw-r--r-- | fs/ntfs3/file.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c index 1cbaab1163b9..77f96665744e 100644 --- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -82,13 +82,14 @@ int ntfs_fileattr_set(struct mnt_idmap *idmap, struct dentry *dentry, struct fileattr *fa) { struct inode *inode = d_inode(dentry); + struct ntfs_inode *ni = ntfs_i(inode); u32 flags = fa->flags; unsigned int new_fl = 0; if (fileattr_has_fsx(fa)) return -EOPNOTSUPP; - if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL)) + if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_COMPR_FL)) return -EOPNOTSUPP; if (flags & FS_IMMUTABLE_FL) @@ -97,6 +98,15 @@ int ntfs_fileattr_set(struct mnt_idmap *idmap, struct dentry *dentry, if (flags & FS_APPEND_FL) new_fl |= S_APPEND; + /* Allowed to change compression for empty files and for directories only. */ + if (!is_dedup(ni) && !is_encrypted(ni) && + (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) { + /* Change compress state. */ + int err = ni_set_compress(inode, flags & FS_COMPR_FL); + if (err) + return err; + } + inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND); inode_set_ctime_current(inode); |