Messages in this thread | | | Date | Fri, 12 Dec 2008 16:01:50 +0000 (GMT) | From | Hugh Dickins <> | Subject | Re: [PATCH] block: Fix LSF default inconsistency |
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On Sat, 13 Dec 2008, KOSAKI Motohiro wrote: > >> Me neither, lets ask the originator of the patch. Rik, why is > >> unevictable lru an option? > > > > I think we had some reasons to keep it as a separate config > > option during development, but nowadays we might as well > > put it all just under CONFIG_SWAP... > > I'm sad ;) > > To move mlocked file cache page to unevictable list is useful although > swapless embedded device.
Yes, I don't understand why Rik suggested CONFIG_SWAP for it either.
> > Actually, number of scanning pages of reclaim is calculated by number > of pages in list. > if unevictable page stay in evictable list a lot, reclaim logic can > calculate wrong scanning number.
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