> If the kernel (or root) can open an arbitrary directory by inode number, > then the kernel (or root) can find the inode number of its parent by looking > at the '..' entry, which the kernel (or root) can then open, and identify > both: the name of the child subdir whose inode number is already known, and > (b) yet another '..' entry. The kernel (or root) can repeat this process > recursively, up to the root of the filesystem tree. At that time, the > kernel (or root) has completely identified the absolute path of the inode > that it started with. > > The only question I want answered right now is: > > Although it is possible, is it implemented? Is there any kind of function, > or existing program, which can be run by root, to obtain either the complete > path of a directory by inode number, or to simply open an inode by number, > which would leave the recursion and absolute path generation yet to be > completed?
You can do in the kernel by calling vnodetopath(). I don't know if it is exposed to user space. But that could be slow if you have large directories so you have to think about where you would use it. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
