Re: [PATCH] vmscan: remove wait_on_page_writeback() from pageout()

[Minchan Kim]

On Wed, Jul 28, 2010 at 04:46:54PM +0800, Wu Fengguang wrote:
> And the wait page-by-page behavior of pageout(SYNC) will lead to very
> long stall time if running into some range of dirty pages. So it's bad
> idea anyway to call wait_on_page_writeback() inside pageout().

Although we remove it in pageout, shrink_page_list still has it.
So it would result in long stall. And it is for lumpy reclaim which 
means it's a trade-off, I think. 

-- 
Kind regards,
Minchan Kim
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/