On Tue, Aug 20, 2013 at 04:09:22PM +0800, Chen Gang wrote: > So, for simplify thinking and implementation, use your patch below is OK > to me (but I suggest to print error information in the none return value > function). Chen, I'm not going to dive into this area now, too busy with other stuff sorry, so if you consider my preliminary draft patch useful -- pick it up, modify it, test it and send to lkml then (just CC me). -- 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>