Re: [patch 3/7] mm: speculative page references

Christoph Lameter
2008-06-10T19:08:27Z

On Thu, 5 Jun 2008, npiggin@suse.de wrote:

> + * do the right thing (see comments above).
> + */
> + return 0;
> + }
> +#endif
> + VM_BUG_ON(PageCompound(page) && (struct page *)page_private(page) != page);

This is easier written as:

== VM_BUG_ON(PageTail(page)

And its also slightly incorrect since page_private(page) is not pointing
to the head page for PageHead(page).