FS_ISCLEAN
if (sblock->fs_clean & FS_ISCLEAN) {
if (markclean && (sblock->fs_clean & FS_ISCLEAN) == 0) {
sblock->fs_clean = FS_ISCLEAN;
sblock.fs_clean = FS_ISCLEAN;
(fs->fs_clean & (FS_WASCLEAN | FS_ISCLEAN)) == 0) {
if ((fs->fs_clean & FS_ISCLEAN) == 0 &&
fs->fs_clean == FS_ISCLEAN ? FS_WASCLEAN : 0;
fs->fs_clean = FS_ISCLEAN;
fs->fs_clean = FS_ISCLEAN;
fs->fs_clean == FS_ISCLEAN ? FS_WASCLEAN : 0;
if ((fs->fs_ronly && (fs->fs_clean & FS_ISCLEAN) == 0) ||
sblock.fs_clean = FS_ISCLEAN;