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SubjectRe: [RFC][PATCH 1/3] radix priority search tree - objrmap complexity fix
On Mon, 29 Mar 2004, Andrew Morton wrote:
>> hmm, yes, we have pages which satisfy PageSwapCache(), but which are not
>> actually in swapcache.
>>
>> How about we use the normal pagecache APIs for this?
>>
>> + add_to_page_cache(page, &swapper_space, entry.val, GFP_NOIO);
>>...
>> + remove_from_page_cache(page);

On Mon, Mar 29, 2004 at 11:24:58PM +0100, Hugh Dickins wrote:
> Much nicer, and it'll probably appear to work: but (also untested)
> I bet you'll need an additional page_cache_release(page) - damn,
> looks like hugetlbfs has found a use for that tiresome asymmetry.
> Hugh

The good news is that the use isn't particularly essential.


-- wli
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