On Mon, 11 Mar 2024 at 03:17, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > > On Fri, Mar 08, 2024 at 08:56:33AM -0800, Darrick J. Wong wrote: > > Should the XFS data and rt volumes be reported with different stx_vol > > values? > > No, because all the inodes are on the data volume and the same inode > can have data on the data volume or the rt volume. i.e. "data on rt, > truncate, clear rt, copy data back into data dev". It's still the > same inode, and may have exactly the same data, so why should change > stx_vol and make it appear to userspace as being a different inode? Because stx_vol must not be used by userspace to distinguish between unique inodes. To determine if two inodes are distinct within a filesystem (which may have many volumes) it should query the file handle and compare that. If we'll have a filesystem that has a different stx_vol but the same fh, all the better. Thanks, Miklos
