[PATCH 0/7] Reduce filesystem writeback from page reclaim v3

Thu Aug 11 18:45:16 CDT 2011

On Wed, Aug 10, 2011 at 12:15:47PM +0100, Mel Gorman wrote:
> > The right fix is to simply remove that fallback, possibly in combination
> > with implementating real migration support for btrfs.
> > 
> 
> Removing the fallback entirely is overkill as proper migration support
> is not going to get 100% coverage

It seems like btrfs is indeed the only important one missing.