On Mon, Jan 11, 2021 at 11:52:01AM +0100, Christoph Hellwig wrote: > On Fri, Jan 08, 2021 at 11:58:55PM -0800, Eric Biggers wrote: > > + if ((flags & S_VERSION) && inode_maybe_inc_iversion(inode, false)) > > + dirty_flags |= I_DIRTY_SYNC; > > fat does not support i_version updates, so this bit can be skipped. Is that really the case? Any filesystem (including fat) can be mounted with "iversion", which causes SB_I_VERSION to be set. A lot of filesystems (including fat) don't store i_version to disk, but it looks like it will still get updated in-memory. Could anything be relying on that? - Eric
