FS_UNCLEAN
if (afs.fs_flags & FS_UNCLEAN)
if ((afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP)) != 0)
afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP));
fs->fs_flags &= ~FS_UNCLEAN;
fs->fs_flags |= FS_UNCLEAN;
(fs->fs_flags & FS_UNCLEAN) == 0 ? 1 : 0;
fs->fs_flags &= ~FS_UNCLEAN;
fs->fs_flags |= FS_UNCLEAN;
fs->fs_clean = fs->fs_flags & FS_UNCLEAN ? 0 : 1;