On Sat, Jun 11, 2022 at 12:12:47PM +0000, Al Viro wrote: > At a guess, should be > return min((size_t)nr * PAGE_SIZE - offset, maxsize); > > in both places. I'm more than half-asleep right now; could you verify that it > (as the last lines of both iter_xarray_get_pages() and iter_xarray_get_pages_alloc()) > builds correctly? No, I'm misreading it - it's unsigned * unsigned long - unsigned vs. size_t. On arm it ends up with unsigned long vs. unsigned int; functionally it *is* OK (both have the same range there), but it triggers the tests. Try return min_t(size_t, nr * PAGE_SIZE - offset, maxsize); there (both places). Al, going back to sleep - 4 hours is not enough...
