mangle_path
EXPORT_SYMBOL(mangle_path);
char *end = mangle_path(buf, p, esc);
char *end = mangle_path(buf, p, esc);
char *end = mangle_path(buf, p, esc);
char *mangle_path(char *s, const char *p, const char *esc);
char *end = mangle_path(buf, p, esc);