Chris Mason pointed out that some filesystems were not doing
the right thing on fiemap, in the face of delalloc extents.
Because test 225 ran with FIEMAP_FLAG_SYNC only, this didn't
get caught. Add a runtime option, and run it both ways.
Note that this changes defaults for fiemap-tester, so that
it no longer calls with FIEMAP_FLAG_SYNC by default, and
a new option -S is added to do so.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Preliminary fiemap testing support based on a test util written by
Josef Bacik.
For now it's only run with preallocation disabled, because xfs has a
tendency to fill in holes with data blocks (EOF prealloc stuff I
think) and similar for explicit preallocation, so this is breaking
the preallocation tests for now, when it finds a "data" block where
it expects a preallocated block.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Eric Sandeen
Eric Sandeen