PS_FST_FFLAG_ASYNC
{ O_ASYNC, PS_FST_FFLAG_ASYNC },
{ KF_FLAG_ASYNC, PS_FST_FFLAG_ASYNC },
xo_emit("{d:/%s}", fst->fs_fflags & PS_FST_FFLAG_ASYNC ?
if (fst->fs_fflags & PS_FST_FFLAG_ASYNC)