On Wed, Oct 30, 2013 at 07:29:30PM +0100, Peter Zijlstra wrote: > + page_shift = PAGE_SHIFT + page_order(rb); > + > + handle->page = (offset >> page_shift) & (rb->nr_pages - 1); > + > + offset &= page_shift - 1;
offset &= (1UL << page_shift) - 1; Weird that it even appeared to work.. /me wonders if he even booted the right kernel. > + > + handle->addr = rb->data_pages[handle->page] + offset; > + handle->size = (1 << page_shift) - offset; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
