Re: [rfc] [patch] mm: zone_reclaim fix for pseudo file systems

Christoph Lameter
2007-07-31T02:36:04Z

On Mon, 30 Jul 2007, Andrew Morton wrote:

> That makes sense, but any fix we do here won't fix things for regular
> reclaim.

Standard reclaim has the same issues. It uselessly keeps
scanning the unreclaimable file backed pages. Fixing this will also
enhance regular reclaim.

> - account file-backed pages, BDI_CAP_NO_ACCT_DIRTY pages and
> BDI_CAP_NO_WRITEBACK separately. ie: zone accounting pretty
> much follows the BDI_CAP_ selectors.

Or BDI_CAP_UNRECLAIMABLE....