Messages in this thread |  | | Date | Tue, 28 Aug 2001 00:36:22 -0300 (BRT) | From | Marcelo Tosatti <> | Subject | page_launder() on 2.4.9/10 issue |
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Linus,
I just noticed that the new page_launder() logic has a big bad problem.
The window to find and free previously written out pages by page_launder() is the amount of writeable pages on the inactive dirty list.
We'll keep writing out dirty pages (as long as they are available) even if have a ton of cleaned pages: its just that we don't see them because we scan a small piece of the inactive dirty list each time.
That obviously did not happen with the full scan behaviour.
With asynchronous i_dirty->i_clean movement (moving a cleaned page to the clean list at the IO completion handler. Please don't consider that for 2.4 :)) this would not happen, too.
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