On Wed, Feb 03, 2021 at 03:55:06AM -0700, Andreas Dilger wrote: > > It looks like this change will break the dirdata feature, which is similarly > storing a data field beyond the end of the dirent. However, that feature also > provides for flags stored in the high bits of the type field to indicate > which of the fields are in use there. > The first byte of each field stores > the length, so it can be skipped even if the content is not understood. Daniel, for context, the dirdata field is an out-of-tree feature which is used by Lustre, and so has fairly large deployed base. So if there is a way that we can accomodate not breaking dirdata, that would be good. Did the ext4 casefold+encryption implementation escape out to any Android handsets? Thanks, - Ted