Hi, Let's say dir a contains b and c, if I change c to c', a will be a' based on COW, right?
a a' b c c' But what will happen if each children of a contains some pointer pointing back to a, like the '..' entry in b. It points to a before the change, which shall it point to, a or a' after the change? Shall we modify b too? If yes, there will be a new b', should we do the same with children of b recursively? If we leave b untouched, in the view of a', after we cd b, '..' will point to a, that's quite confusing. zfs did it right, but I can't find it in the code, really appreciate that if someone can give me some hints. Thanks Best Regards Chenz -- args are passed by ref, but bindings are local, variables are in fact just a symbol referencing an object _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
