SBLOCK_UFS2 740 ufs/ffs/ffs_vfsops.c if (fs->fs_magic == FS_UFS1_MAGIC && sbloc == SBLOCK_UFS2) SBLOCK_UFS2 70 ufs/ffs/fs.h { SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_PIGGY, -1 }