Messages in this thread | | | Date | Mon, 22 Nov 2010 10:50:44 +0900 | Subject | Re: [PATCH] vmscan: Make move_active_pages_to_lru more generic | From | Minchan Kim <> |
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Hi Wu,
On Mon, Nov 22, 2010 at 10:36 AM, Wu Fengguang <fengguang.wu@intel.com> wrote: > On Sun, Nov 21, 2010 at 10:24:56PM +0800, Minchan Kim wrote: >> Now move_active_pages_to_lru can move pages into active or inactive. >> if it moves the pages into inactive, it itself can clear PG_acive. >> It makes the function more generic. > > Do you plan to use this "more generic" function? Because the patch in > itself makes code slightly less efficient. It adds one "if" test, and > moves one operation into the spin lock.
I tried to use it in my deactivate page series but couldn't use it due some problem. So I don't have a plan to use it. It's just my preference(and I hope others think like me :) )
I hope function itself would be generic and clear because some people in future might use it and reference it. If my change makes big cost, I am not against you. otherwise, I hope move_active_pages_to_lru become self-contained.
> > Thanks, > Fengguang >
-- Kind regards, Minchan Kim
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