EXT2_SUPER_MAGIC
if (sb->s_magic != EXT2_SUPER_MAGIC)
buf->f_type = EXT2_SUPER_MAGIC;
if (sb->s_magic != EXT2_SUPER_MAGIC)
if (es->s_magic != cpu_to_le16(EXT2_SUPER_MAGIC)) {
if (sb->s_magic == EXT2_SUPER_MAGIC) {
if (*(__le16 *)(p + EXT2_SB_MAGIC_OFFSET) != cpu_to_le16(EXT2_SUPER_MAGIC))