diff options
| author | Swen Schillig <swen@vnet.ibm.com> | 2008-10-01 12:42:25 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-10-03 12:11:56 -0500 |
| commit | 091694a556d168dc9df4d79e3a40116550b183cf (patch) | |
| tree | d682fea39421269f67287e5dee5c6048247f08dc /drivers/s390/scsi/zfcp_aux.c | |
| parent | 9fb3cd86e4870d54d71a80323e97c48df4de05bd (diff) | |
| download | lwn-091694a556d168dc9df4d79e3a40116550b183cf.tar.gz lwn-091694a556d168dc9df4d79e3a40116550b183cf.zip | |
[SCSI] zfcp: wait on SCSI work to be finished before proceeding with init dev
Due to the character of a scheduled work we cannot guarantee the
LUN register to be finished before an initial device tries to use it.
Therefor we have to wait for PENDING_SCSI_WORK flag to be cleared
before proceeding.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 05f3de64f6a3..24255e42dc30 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -129,7 +129,12 @@ static void __init zfcp_init_device_configure(void) goto out_unit; up(&zfcp_data.config_sema); ccw_device_set_online(adapter->ccw_device); + zfcp_erp_wait(adapter); + wait_event(adapter->erp_done_wqh, + !(atomic_read(&unit->status) & + ZFCP_STATUS_UNIT_SCSI_WORK_PENDING)); + down(&zfcp_data.config_sema); zfcp_unit_put(unit); out_unit: |