On Thu, Apr 27, 2017 at 10:59 AM, Amir Goldstein <amir73il@xxxxxxxxx> wrote: > Miklos, > > As you observed, the sb->s_uuid field is not always filled by filesystems. > > Consumers, like overlayfs, that wish to use this field can check if is > zeroed out as an indication for valid value. > > Christoph suggested to make the test more explicit and require the > filesystems that fill the s_uuid field to set a super block flag. > > Do you agree with the proposed API? Sure. Thanks, Miklos
