diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2026-01-28 14:24:05 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-01-29 10:06:59 +0100 |
| commit | 55fb177d3a0346106974749374ae2191ba250825 (patch) | |
| tree | a78480682266c70e3d974131fd121c3e17c8141c /include/linux | |
| parent | 1992330d90dd766fcf1730fd7bf2d6af65370ac4 (diff) | |
fs: add helpers name_is_dot{,dot,_dotdot}
Rename the helper is_dot_dotdot() into the name_ namespace
and add complementary helpers to check for dot and dotdot
names individually.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://patch.msgid.link/20260128132406.23768-3-amir73il@gmail.com
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/fs.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 094b0adcb035..95bb9a15e109 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2844,12 +2844,22 @@ u64 vfsmount_to_propagation_flags(struct vfsmount *mnt); extern char *file_path(struct file *, char *, int); +static inline bool name_is_dot(const char *name, size_t len) +{ + return unlikely(len == 1 && name[0] == '.'); +} + +static inline bool name_is_dotdot(const char *name, size_t len) +{ + return unlikely(len == 2 && name[0] == '.' && name[1] == '.'); +} + /** - * is_dot_dotdot - returns true only if @name is "." or ".." + * name_is_dot_dotdot - returns true only if @name is "." or ".." * @name: file name to check * @len: length of file name, in bytes */ -static inline bool is_dot_dotdot(const char *name, size_t len) +static inline bool name_is_dot_dotdot(const char *name, size_t len) { return len && unlikely(name[0] == '.') && (len == 1 || (len == 2 && name[1] == '.')); |