UFS_EA
KASSERT((ump->um_flags & UFS_EA) != 0 || (flags & IO_EXT) == 0);
if ((ip->i_ump->um_flags & UFS_EA) == 0) {
KASSERT((ip->i_ump->um_flags & UFS_EA) != 0);
ump->um_flags |= UFS_EA;
ump->um_flags |= UFS_EA;
if (mp->um_flags & UFS_EA) {
if (ump->um_fstype == UFS2 && (ump->um_flags & UFS_EA) == 0 &&
ump->um_flags |= UFS_EA;
if ((ump->um_flags & UFS_EA) != 0)
KASSERT(ump->um_fstype == UFS2 && (ump->um_flags & UFS_EA) != 0);