diff options
Diffstat (limited to 'fs/ext4/ioctl.c')
| -rw-r--r-- | fs/ext4/ioctl.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 20faa6a69238..7e85ecf0b849 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -278,6 +278,7 @@ static int ext4_ioctl_setflags(struct inode *inode, struct ext4_iloc iloc; unsigned int oldflags, mask, i; unsigned int jflag; + struct super_block *sb = inode->i_sb; /* Is it quota file? Do not allow user to mess with it */ if (ext4_is_quota_file(inode)) @@ -322,6 +323,23 @@ static int ext4_ioctl_setflags(struct inode *inode, goto flags_out; } + if ((flags ^ oldflags) & EXT4_CASEFOLD_FL) { + if (!ext4_has_feature_casefold(sb)) { + err = -EOPNOTSUPP; + goto flags_out; + } + + if (!S_ISDIR(inode->i_mode)) { + err = -ENOTDIR; + goto flags_out; + } + + if (!ext4_empty_dir(inode)) { + err = -ENOTEMPTY; + goto flags_out; + } + } + handle = ext4_journal_start(inode, EXT4_HT_INODE, 1); if (IS_ERR(handle)) { err = PTR_ERR(handle); |