Hi Jens, please see the following patch that fixes zero writes for DASD FBA devices under certain conditions. Do you mind to take this for 5.9? Jan Höppner (1): s390/dasd: Fix zero write for FBA devices drivers/s390/block/dasd_fba.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) -- 2.17.1