Re: [patch 1/1] alloc_pages(): permit get_zeroed_page(GFP_ATOMIC) from interrupt context

Christoph Lameter
2007-08-27T22:12:58Z

On Mon, 27 Aug 2007, Andrew Morton wrote:

> > Nesting (at least allocate a
> > regular page while highmem page is being mapped) needs to work in order to
> > be able to allocate a page from an interrupt contexts.
>
> yup, but interrupt-level code should use the reserved-for-interrupt kmap
> slots (KM_IRQ0, etc).

We are not using any kmap slot since we are allocating a non highmem page!