On Tue, Jul 31, Andreas Dilger wrote: > On Jul 31, 2007 09:44 +0200, Jan Blunck wrote: > > Ok, this is pretty similar to the way I implemented this for tmpfs. The > > problem is that the union mount code is explicitly checking if the filesystem > > is supporting whiteout. I used to use a new filesystem flag (FS_WHITEOUT) for > > this but thought that disk filesystem like ext2/3/4 will have problem with > > that if you mount an old image. So I guess I still need a feature flag. > > You also need whiteout support for extents. This could be done with > unwritten extents potentially, or as I previously proposed (RFC) in > linux-ext4. Maybe. But this is about something totally different: a whiteout filetype, an existing file that when it is found make the VFS return -ENOENT. Cheers, Jan - 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
