On Wed, Apr 01, 2020 at 09:27:44AM -0700, Eric Biggers wrote: > On Wed, Apr 01, 2020 at 08:39:07AM +0100, David Howells wrote: > > Hi Ted, > > > > Whilst we were at Vault, I asked you if there was any live ext4 information > > that it could be useful to export through fsinfo(). I've implemented a patch > > that exports six superblock timestamps: > > > > FSINFO_ATTR_EXT4_TIMESTAMPS: > > mkfs : 2016-02-26 00:37:03 > > mount : 2020-03-31 21:57:30 > > write : 2020-03-31 21:57:28 > > fsck : 2018-12-17 23:32:45 > > 1st-err : - > > last-err: - > > > > but is there anything else that could be of interest? > > > > Thanks, > > David > > > > FWIW, the filesystem UUID would be useful for testing ext4 and f2fs encryption > (since it's now sometimes used in the derivation of encryption keys). But I see > you already included it as FSINFO_ATTR_VOLUME_UUID. It is?? What happens if you tune2fs -U if csum_seed isn't enabled? --D > > - Eric
