2011/8/23 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>:
> This seems more complicated than is needed. Couldn't we just do
>
> static void poison_page(struct page *page)
> {
> void *addr;
>
> preempt_disable();
> addr = kmap_atomic(page);
> set_page_poison(page);
> memset(addr, PAGE_POISON, PAGE_SIZE);
> kunmap_atomic(addr);
> preempt_enable();
> }
>
> ?
This code looks much better. I'll update the patch.
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