On (18/06/07 10:24), Christoph Lameter didst pronounce: > On Mon, 18 Jun 2007, Mel Gorman wrote: > > > The patchset implements memory compaction for the page allocator reducing > > external fragmentation so that free memory exists as fewer, but larger > > contiguous blocks. Instead of being a full defragmentation solution, > > this focuses exclusively on pages that are movable via the page migration > > mechanism. > > We need an additional facility at some point that allows the moving of > pages that are not on the LRU. Such support seems to be possible > for page table pages and slab pages.
Agreed. When I put this together first, I felt I would be able to isolate pages of different types on migratelist but that is not the case as migration would not be able to tell the difference between a LRU page and a pagetable page. I'll rename cc->migratelist to cc->migratelist_lru with the view to potentially adding cc->migratelist_pagetable or cc->migratelist_slab later. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
