On Tue, 2005-10-25 at 12:30 -0700, Christoph Lameter wrote:
>
> +#ifdef CONFIG_SWAP
> + if (PageSwapCache(page)) {
> + swp_entry_t swap = { .val = page_private(page) };
> + add_to_swapped_list(swap.val);
> + __delete_from_swap_cache(page);
> + write_unlock_irq(&mapping->tree_lock);
> + swap_free(swap);
> + __put_page(page); /* The pagecache ref */
> + return 1;
> + }
> +#endif /* CONFIG_SWAP */
Why is this #ifdef needed? PageSwapCache() is #defined to 0 when !
CONFIG_SWAP.
-- Dave
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