On Mon, 8 Jul 2019 at 18:04, Christoph Hellwig <hch@xxxxxx> wrote: > On Thu, Jul 04, 2019 at 12:35:41AM +0200, Andreas Gruenbacher wrote: > > Patch "gfs2: implement gfs2_block_zero_range using iomap_zero_range" > > isn't quite ready: the gfs2 iomap operations don't handle IOMAP_ZERO > > correctly so far, and that needs to be fixed first. > > What is the issue with IOMAP_ZERO on gfs2? Zeroing never does block > allocations except when on COW extents, which gfs2 doesn't support, > so there shouldn't really be any need for additional handling. We still want to set iomap->page_ops for journalled data files on gfs2. Also, if we go through the existing gfs2_iomap_begin_write / __gfs2_iomap_begin logic for iomap_zero_range, it will work for stuffed files as well, and so we can replace stuffed_zero_range with iomap_zero_range. > > Some of the tests assume that the filesystem supports unwritten > > extents, trusted xattrs, the usrquota / grpquota / prjquota mount > > options. There shouldn't be a huge number of failing tests beyond > > that, but I know things aren't perfect. > > In general xfstests is supposed to have tests for that and not run > the tests if not supported. In most cases this is automatic, but > in case a feature can't be autodetect we have a few manual overrides. Yes, that needs a bit of work. Let's see. Thanks, Andreas
