diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2026-05-07 04:52:58 -0400 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-05-11 16:50:28 +0200 |
| commit | eeb7b37b9700f0dbb3e6fe7b9e910b466ac190dd (patch) | |
| tree | 2f812612ba6d23745f6fa592f8552f367438f94d | |
| parent | 27e0b573dd4aa927670fbfd84732e569fde72078 (diff) | |
| download | linux-eeb7b37b9700f0dbb3e6fe7b9e910b466ac190dd.tar.gz linux-eeb7b37b9700f0dbb3e6fe7b9e910b466ac190dd.zip | |
ntfs3: Implement fileattr_get for case sensitivity
Report NTFS case sensitivity behavior via the FS_XFLAG_CASEFOLD
flag. NTFS always preserves case at rest.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-5-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | fs/ntfs3/file.c | 29 | ||||
| -rw-r--r-- | fs/ntfs3/namei.c | 1 | ||||
| -rw-r--r-- | fs/ntfs3/ntfs_fs.h | 1 |
3 files changed, 31 insertions, 0 deletions
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c index b041639ab406..ad9350d7fc3f 100644 --- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -181,6 +181,34 @@ long ntfs_compat_ioctl(struct file *filp, u32 cmd, unsigned long arg) #endif /* + * ntfs_fileattr_get - inode_operations::fileattr_get + */ +int ntfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa) +{ + struct inode *inode = d_inode(dentry); + struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info; + + /* Avoid any operation if inode is bad. */ + if (unlikely(is_bad_ni(ntfs_i(inode)))) + return -EINVAL; + + /* + * NTFS preserves case (the default). Case sensitivity depends on + * mount options: with "nocase", NTFS is case-insensitive; + * otherwise it is case-sensitive. + */ + if (sbi->options->nocase) { + fa->fsx_xflags |= FS_XFLAG_CASEFOLD; + fa->flags |= FS_CASEFOLD_FL; + } + if (inode->i_flags & S_IMMUTABLE) { + fa->fsx_xflags |= FS_XFLAG_IMMUTABLE; + fa->flags |= FS_IMMUTABLE_FL; + } + return 0; +} + +/* * ntfs_getattr - inode_operations::getattr */ int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path, @@ -1547,6 +1575,7 @@ const struct inode_operations ntfs_file_inode_operations = { .get_acl = ntfs_get_acl, .set_acl = ntfs_set_acl, .fiemap = ntfs_fiemap, + .fileattr_get = ntfs_fileattr_get, }; const struct file_operations ntfs_file_operations = { diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c index b2af8f695e60..e159ba66a34a 100644 --- a/fs/ntfs3/namei.c +++ b/fs/ntfs3/namei.c @@ -518,6 +518,7 @@ const struct inode_operations ntfs_dir_inode_operations = { .getattr = ntfs_getattr, .listxattr = ntfs_listxattr, .fiemap = ntfs_fiemap, + .fileattr_get = ntfs_fileattr_get, }; const struct inode_operations ntfs_special_inode_operations = { diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h index bbf3b6a1dcbe..41db22d652c4 100644 --- a/fs/ntfs3/ntfs_fs.h +++ b/fs/ntfs3/ntfs_fs.h @@ -529,6 +529,7 @@ bool dir_is_empty(struct inode *dir); extern const struct file_operations ntfs_dir_operations; /* Globals from file.c */ +int ntfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa); int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, u32 request_mask, u32 flags); int ntfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, |