EXT4_EXT_MAGIC
eh->eh_magic = EXT4_EXT_MAGIC;
neh->eh_magic = EXT4_EXT_MAGIC;
neh->eh_magic = EXT4_EXT_MAGIC;
neh->eh_magic = EXT4_EXT_MAGIC;
if (unlikely(eh->eh_magic != EXT4_EXT_MAGIC)) {
eh->eh_magic = EXT4_EXT_MAGIC;
if (eh->eh_magic != EXT4_EXT_MAGIC) {
eh->eh_magic = EXT4_EXT_MAGIC;