Hi All,
Does a anonymous page get added to the page cache's active list
when it gets created? I am unable to find out any place in the
code where it seems to be doing so. If it is not, then how does
page aging happen on anonymous page? Again The page aging seems to
be hapenning only on the active list of the page cache. I am kind
of confused with the flow; it would be nice if someone could trace
the path of anonymous page.
Also I have another question on shared pages. On my 2.4.2 kernel,
the refill_inactive_scan() function (which moves the pages from
active to inactive dirty list) seems to be process a page only if
the page count is 1 if not in buffer cache or 2 otherwise. But if
the page is shared among multiple processes, the count can be
greater in which case it is not a contendor for getting swapped
out. How does then swapping work on shared pages?
Thanks
Raghav
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