On Tue, Mar 18, 2014 at 09:00:07AM +1100, NeilBrown wrote: > ESTALE is also returned if the filesystem does not support file-handle -> > file mappings. > On filesystems which don't provide export_operations (/sys /proc ubifs > romfs cramfs nfs coda ... several others) name_to_handle_at will produce a > generic handle using the 32 bit inode and 32 bit i_generation.
Do we? Seems like the code is erroring out early if there are no export_ops? > Does it? My understanding from "man libblkid" (it is a while since I've read > the code) is that it either uses info in /dev/disks/by-* or reads directly > from the block devices (maybe using /sys to find them?) and interprets the > superblock to extract a UUID. It normally reads directly from disk, unless it has changed very recently. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
