Re: [SLUB 2/3] Large kmalloc pass through. Removal of large general slabs

Christoph Lameter
2007-03-07T18:23:36Z

On Wed, 7 Mar 2007, Matt Mackall wrote:

> > I have a patch here to make this dependent on page size using a loop. The
> > problem is that it does not work with some versions of gcc. On the
> > other hand we really need this since one arch can
> > actually have an order 22 page size!
>
> You don't need a loop, you need an if (s >= PAGE_SIZE) at the head of
> your static list.

As I just said: PAGE_SIZE may be quite high. So I would need a looong
static list. We already check for the size being bigger than 2048 which is
half the usual page size. Anything larger will get passed through.