In addition to these gem's there's an even worse issue in blk cfq, introduced in commit "blkio: Export disk time and sectors used by a group to user space" which parses the name inside the backing_dev sysfs device back into a major / minor number. Given how obviously stupid this is, and given the whack a mole blkiocg is I'm tempted to simply break it and see if anyone cares. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>