On 07/19/2010 09:11 AM, Mel Gorman wrote:
There are a number of cases where pages get cleaned but two of concern
to this patch are;
o When dirtying pages, processes may be throttled to clean pages if
dirty_ratio is not met.
o Pages belonging to inodes dirtied longer than
dirty_writeback_centisecs get cleaned.
The problem for reclaim is that dirty pages can reach the end of the LRU
if pages are being dirtied slowly so that neither the throttling cleans
them or a flusher thread waking periodically.
I can't see a better way to do this without creating
a way-too-big-to-merge patch series, and this patch
should result in the right behaviour, so ...
Acked-by: Rik van Riel <riel@xxxxxxxxxx>
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