On Fri, Jun 19, 2020 at 08:39:48AM +1000, Dave Chinner wrote: > This will prevent SB_I_VERSION from being turned off at all. That > will break existing filesystems that allow SB_I_VERSION to be turned > off on remount, such as ext4. > > The manipulations here need to be in the filesystem specific code; > we screwed this one up so badly there is no "one size fits all" > behaviour that we can implement in the generic code... Yes. SB_I_VERSION should never be set by common code.