diff options
| -rw-r--r-- | drivers/s390/block/dasd.c | 4 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 14 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_int.h | 1 |
3 files changed, 17 insertions, 2 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index ce2a780a9ea..65894f05a80 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -3289,6 +3289,9 @@ int dasd_generic_pm_freeze(struct ccw_device *cdev) if (IS_ERR(device)) return PTR_ERR(device); + /* mark device as suspended */ + set_bit(DASD_FLAG_SUSPENDED, &device->flags); + if (device->discipline->freeze) rc = device->discipline->freeze(device); @@ -3363,6 +3366,7 @@ int dasd_generic_restore_device(struct ccw_device *cdev) if (device->block) dasd_schedule_block_bh(device->block); + clear_bit(DASD_FLAG_SUSPENDED, &device->flags); dasd_put_device(device); return 0; } diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index cb1bbc2947e..cca25096efc 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1101,6 +1101,12 @@ static void do_path_verification_work(struct work_struct *work) data = container_of(work, struct path_verification_work_data, worker); device = data->device; + /* delay path verification until device was resumed */ + if (test_bit(DASD_FLAG_SUSPENDED, &device->flags)) { + schedule_work(work); + return; + } + opm = 0; npm = 0; ppm = 0; @@ -2047,9 +2053,13 @@ static void dasd_eckd_check_for_device_change(struct dasd_device *device, /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; if ((scsw_dstat(&irb->scsw) & mask) == mask) { - /* for alias only and not in offline processing*/ + /* + * for alias only, not in offline processing + * and only if not suspended + */ if (!device->block && private->lcu && - !test_bit(DASD_FLAG_OFFLINE, &device->flags)) { + !test_bit(DASD_FLAG_OFFLINE, &device->flags) && + !test_bit(DASD_FLAG_SUSPENDED, &device->flags)) { /* * the state change could be caused by an alias * reassignment remove device from alias handling diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 563bf8a25dc..afe8c33422e 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -516,6 +516,7 @@ struct dasd_block { */ #define DASD_FLAG_IS_RESERVED 7 /* The device is reserved */ #define DASD_FLAG_LOCK_STOLEN 8 /* The device lock was stolen */ +#define DASD_FLAG_SUSPENDED 9 /* The device was suspended */ void dasd_put_device_wake(struct dasd_device *); |