On Mon, May 13, 2013 at 10:19:02AM +0100, Mel Gorman wrote: > On Mon, May 13, 2013 at 05:11:43PM +0800, Tang Chen wrote: ... > > If so, I'm wondering where should we put this callback pointers ? > > In struct page ? > > > > No, I would expect the callbacks to be part the address space operations > which can be found via page->mapping. If someone adds those callbacks and provides a means for testing them, it would be pretty trivial to change the aio code to migrate its pinned pages on demand. -ben -- "Thought is the essence of where you are now." -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>