FGP_FOR_MMAP     1675 mm/filemap.c   		if (WARN_ON_ONCE(!(fgp_flags & (FGP_LOCK | FGP_FOR_MMAP))))
FGP_FOR_MMAP     1694 mm/filemap.c   		if (page && (fgp_flags & FGP_FOR_MMAP))
FGP_FOR_MMAP     2511 mm/filemap.c   					  FGP_CREAT|FGP_FOR_MMAP,