On Thu, 22 Apr 2010, Minchan Kim wrote: > For further optimization, we can hold vma->adjust_lock if vma_address > returns -EFAULT. But I hope we redesigns it without new locking. > But I don't have good idea, now. :( You could make it atomic through the use of RCU. Create a new vma entry with the changed parameters and then atomically switch to the new vma. Problem is that you have some list_heads in there. -- 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>