/* Even if a symlink in the stack directory is created/removed, the mtime of the directory may
* not be changed. Why? Let's consider the following situation. For simplicity, let's assume
- * there exist three udev workers (A, B, and C) and all of them calls link_update() for the
- * same devlink simultaneously.
+ * there exist two udev workers (A and B) and all of them calls link_update() for the same
+ * devlink simultaneously.
*
- * 1. B creates/removes a symlink in the stack directory.
+ * 1. A creates/removes a symlink in the stack directory.
* 2. A calls the first stat() in the loop of link_update().
* 3. A calls link_find_prioritized().
- * 4. C creates/removes another symlink in the stack directory, so the result of the step 3 is outdated.
- * 5. B and C finish link_update().
+ * 4. B creates/removes another symlink in the stack directory, so the result of the step 3 is outdated.
+ * 5. B finishes link_update().
* 6. A creates/removes devlink according to the outdated result in the step 3.
* 7. A calls the second stat() in the loop of link_update().
*