Messages in this thread | | | Date | Wed, 11 Jun 2014 15:54:02 -0700 (PDT) | From | David Rientjes <> | Subject | Re: [PATCH] x86: numa: drop ZONE_ALIGN |
| |
On Wed, 11 Jun 2014, Christoph Lameter wrote:
> > > The zone should not cross the 8M boundary? > > > > Yes, but the question is: why? > > zones need to be aligned so that the huge pages order and other page > orders allocated from the page allocator are at their "natural alignment". > Otherwise huge pages cannot be mapped properly and various I/O devices > may encounter issues if they rely on the natural alignment. >
Any reason not to align to HUGETLB_PAGE_ORDER on x86 instead of ZONE_ALIGN?
| |