On Monday 31 October 2005 21:12, Christoph Lameter wrote:
> Page migration support in vmscan.c
This has no #ifdef 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;
> + }
But what you removed did:
> -#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 */
> - goto free_it;
> - }
> -#endif /* CONFIG_SWAP */
What happens if you build without swap?
Rob
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