Test 249 was appearing to pass on ext4, but it wasn't really
exercising the test due to lack of "-F" in the xfs_io arguments.
Without -F the files were created (oddly enough); neither pwrite
nor sendfile were executed, and the diff of the two (empty)
files passed, resulting in a passed test without testing anything.
So add the -F, capture the output, and test the result of each
xfs_io invocation.
Also, when it fails, the diff output is huge. Make diff silent,
but describe the diff failure and exit.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
We don't have any coverage of the splice functionality provided by
the kernel in xfstests. Add a simple test that uses the sendfile
operation built into xfs_io to copy a file ensure we at least
execute the code path in xfstests.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Eric Sandeen
Dave Chinner