diff options
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 8 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_int.h | 1 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 6215f6455eb8..d8144513fadc 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1259,7 +1259,11 @@ static void do_path_verification_work(struct work_struct *work) schedule_work(work); return; } - + /* check if path verification already running and delay if so */ + if (test_and_set_bit(DASD_FLAG_PATH_VERIFY, &device->flags)) { + schedule_work(work); + return; + } opm = 0; npm = 0; ppm = 0; @@ -1402,7 +1406,7 @@ static void do_path_verification_work(struct work_struct *work) device->path_data.hpfpm |= hpfpm; spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); } - + clear_bit(DASD_FLAG_PATH_VERIFY, &device->flags); dasd_put_device(device); if (data->isglobal) mutex_unlock(&dasd_path_verification_mutex); diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 227e3dea3155..4aed5ed70836 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -534,6 +534,7 @@ struct dasd_attention_data { #define DASD_FLAG_SAFE_OFFLINE 10 /* safe offline processing requested*/ #define DASD_FLAG_SAFE_OFFLINE_RUNNING 11 /* safe offline running */ #define DASD_FLAG_ABORTALL 12 /* Abort all noretry requests */ +#define DASD_FLAG_PATH_VERIFY 13 /* Path verification worker running */ #define DASD_SLEEPON_START_TAG ((void *) 1) #define DASD_SLEEPON_END_TAG ((void *) 2) |