On Fri, Dec 03, 2010 at 05:45:26PM -0500, J. Bruce Fields wrote: > We're using statfs64.fs_fsid for this; I believe that's both stable > across reboots and distinguishes between subvolumes, so that's OK. It's a field that doesn't have any useful specification and basically contains random garbage that a filesystem put into it. Using it is a very bad idea. -- 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