Hello Jeff, "Josef 'Jeff' Sipek": > Unless I missunderstood something, Unionfs uses the same approach. Even > Unionfs's ODF branch does the same thing. The major difference is that we > keep the cache in a file on a disk. The approach unionfs-2.1.2 took differs from mine. Major difference is, - in this approach, the cache in struct file is the completed virtual disk block for the dir. - readdir doesn't have to call vfs_readdir when the cache exists and is valid. simply calls filldir. - it supports SEEK_END. Junjiro Okajima - 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