On Wed, Mar 14, 2012 at 10:48:17AM +0800, Yongqiang Yang wrote: > What if we use inode number as the hash value? Does it work? The whole point of using the tree structure is to accelerate filename -> inode number lookups. So the namei lookup doesn't have the inode number; the whole point is to use the filename to lookup the inode number. So we can't use the inode number as the hash value since that's what we are trying to find out. We could do this if we have two b-trees, one indexed by filename and one indexed by inode number, which is what JFS (and I believe btrfs) does. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
