Messages in this thread | | | Date | Sat, 13 Dec 2008 00:11:39 +0900 | From | "KOSAKI Motohiro" <> | Subject | Re: [PATCH] block: Fix LSF default inconsistency |
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>> 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.
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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