On Fri, May 24, 2019 at 11:31:48AM -0400, Johannes Weiner wrote: > diff --git a/include/linux/xarray.h b/include/linux/xarray.h > index 0e01e6129145..cbbf76e4c973 100644 > --- a/include/linux/xarray.h > +++ b/include/linux/xarray.h > @@ -292,6 +292,7 @@ struct xarray { > spinlock_t xa_lock; > /* private: The rest of the data structure is not to be used directly. */ > gfp_t xa_flags; > + gfp_t xa_gfp; > void __rcu * xa_head; > }; No. I'm willing to go for a xa_flag which says to use __GFP_ACCOUNT, but you can't add another element to the struct xarray. We haven't even finished the discussion from yesterday. I'm going to go back to that thread and keep discussing there.