On Mon, 28 Jul 2014, Andrey Ryabinin wrote: > do_fault_around expects fault_around_bytes rounded down to nearest > page order. Instead of calling rounddown_pow_of_two every time > in fault_around_pages()/fault_around_mask() we could do round down > when user changes fault_around_bytes via debugfs interface. > If you're going to optimize this, it seems like fault_around_bytes would benefit from being __read_mostly. -- 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>