258     int last_slash = -1;  in vfs_mkdir()  local
265             last_slash = i;  in vfs_mkdir()
271     if (last_slash < 0)  in vfs_mkdir()
274     char *buf = (char *)kzalloc(last_slash + 2, 0);  in vfs_mkdir()
278         strncpy_from_user(buf, path, last_slash);  in vfs_mkdir()
280         strncpy(buf, path, last_slash);  in vfs_mkdir()
281     buf[last_slash + 1] = '\0';  in vfs_mkdir()
302     struct vfs_dir_entry_t *subdir_dentry = vfs_alloc_dentry(pathlen - last_slash);  in vfs_mkdir()
305         subdir_dentry->name_length = pathlen - last_slash - 2;  in vfs_mkdir()
307         subdir_dentry->name_length = pathlen - last_slash - 1;  in vfs_mkdir()
309 … for (int i = last_slash + 1, cnt = 0; i < pathlen && cnt < subdir_dentry->name_length; ++i, ++cnt)  in vfs_mkdir()
641     int last_slash = -1;  in vfs_rmdir()  local
648             last_slash = i + 1;  in vfs_rmdir()
654     if (last_slash < 0)  in vfs_rmdir()
659     char *buf = (char *)kzalloc(last_slash + 2, 0);  in vfs_rmdir()
663         strncpy_from_user(buf, path, last_slash);  in vfs_rmdir()
665         strncpy(buf, path, last_slash);  in vfs_rmdir()
666     buf[last_slash + 1] = '\0';  in vfs_rmdir()
793     int last_slash = -1;  in do_unlink_at()  local
800             last_slash = i + 1;  in do_unlink_at()
806     if (last_slash < 0)  in do_unlink_at()
811     char *buf = (char *)kzalloc(last_slash + 1, 0);  in do_unlink_at()
815         strncpy_from_user(buf, pathname, last_slash);  in do_unlink_at()
817         strncpy(buf, pathname, last_slash);  in do_unlink_at()
818     buf[last_slash] = '\0';  in do_unlink_at()