xfs: test running growfs on the realtime volume
Make sure that we can run growfs to expand the realtime volume without
it blowing up. This is a regression test for the following patches:
xfs: Set xfs_buf type flag when growing summary/bitmap files
xfs: Set xfs_buf's b_ops member when zeroing bitmap/summary files
xfs: fix realtime bitmap/summary file truncation when growing rt volume
xfs: make xfs_growfs_rt update secondary superblocks
xfs: annotate grabbing the realtime bitmap/summary locks in growfs
Because the xfs maintainer realized that no, we have no tests for this
particular piece of functionality.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>