FS_MAGIC
if (sb->fs_magic == FS_MAGIC) {
if (buf_size != SBSIZE || fs->fs_magic != FS_MAGIC ||
if (buf_size != SBSIZE || fs->fs_magic != FS_MAGIC ||
if (fs->fs_magic != FS_MAGIC && fs->fs_magic != FS_UFS2_MAGIC)
if (fs->fs_magic != FS_MAGIC)