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-rw-r--r--drivers/s390/scsi/zfcp_aux.c5
-rw-r--r--drivers/s390/scsi/zfcp_def.h2
-rw-r--r--drivers/s390/scsi/zfcp_erp.c50
-rw-r--r--drivers/s390/scsi/zfcp_ext.h1
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c17
5 files changed, 25 insertions, 50 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 616c60ffcf2c..5a01ef9aeb66 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -97,9 +97,7 @@ static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun)
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));
+ flush_work(&unit->scsi_work);
down(&zfcp_data.config_sema);
zfcp_unit_put(unit);
@@ -279,6 +277,7 @@ struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun)
atomic_set(&unit->refcount, 0);
init_waitqueue_head(&unit->remove_wq);
+ INIT_WORK(&unit->scsi_work, zfcp_scsi_scan);
unit->port = port;
unit->fcp_lun = fcp_lun;
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index a0318630f047..4c362a9069f0 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -255,7 +255,6 @@ enum zfcp_wka_status {
/* logical unit status */
#define ZFCP_STATUS_UNIT_SHARED 0x00000004
#define ZFCP_STATUS_UNIT_READONLY 0x00000008
-#define ZFCP_STATUS_UNIT_SCSI_WORK_PENDING 0x00000020
/* FSF request status (this does not have a common part) */
#define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT 0x00000002
@@ -530,6 +529,7 @@ struct zfcp_unit {
struct zfcp_erp_action erp_action; /* pending error recovery */
atomic_t erp_counter;
struct zfcp_latencies latencies;
+ struct work_struct scsi_work;
};
/* FSF request */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 631bdb1dfd6c..4e160523c31b 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -1176,48 +1176,6 @@ static void zfcp_erp_action_dequeue(struct zfcp_erp_action *erp_action)
}
}
-struct zfcp_erp_add_work {
- struct zfcp_unit *unit;
- struct work_struct work;
-};
-
-static void zfcp_erp_scsi_scan(struct work_struct *work)
-{
- struct zfcp_erp_add_work *p =
- container_of(work, struct zfcp_erp_add_work, work);
- struct zfcp_unit *unit = p->unit;
- struct fc_rport *rport = unit->port->rport;
-
- if (rport && rport->port_state == FC_PORTSTATE_ONLINE)
- scsi_scan_target(&rport->dev, 0, rport->scsi_target_id,
- scsilun_to_int((struct scsi_lun *)&unit->fcp_lun), 0);
- atomic_clear_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
- zfcp_unit_put(unit);
- wake_up(&unit->port->adapter->erp_done_wqh);
- kfree(p);
-}
-
-static void zfcp_erp_schedule_work(struct zfcp_unit *unit)
-{
- struct zfcp_erp_add_work *p;
-
- p = kzalloc(sizeof(*p), GFP_KERNEL);
- if (!p) {
- dev_err(&unit->port->adapter->ccw_device->dev,
- "Registering unit 0x%016Lx on port 0x%016Lx failed\n",
- (unsigned long long)unit->fcp_lun,
- (unsigned long long)unit->port->wwpn);
- return;
- }
-
- zfcp_unit_get(unit);
- atomic_set_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
- INIT_WORK(&p->work, zfcp_erp_scsi_scan);
- p->unit = unit;
- if (!queue_work(zfcp_data.work_queue, &p->work))
- zfcp_unit_put(unit);
-}
-
static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
{
struct zfcp_adapter *adapter = act->adapter;
@@ -1226,11 +1184,11 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
- flush_work(&port->rport_work);
if ((result == ZFCP_ERP_SUCCEEDED) && !unit->device) {
- if (!(atomic_read(&unit->status) &
- ZFCP_STATUS_UNIT_SCSI_WORK_PENDING))
- zfcp_erp_schedule_work(unit);
+ zfcp_unit_get(unit);
+ if (scsi_queue_work(unit->port->adapter->scsi_host,
+ &unit->scsi_work) <= 0)
+ zfcp_unit_put(unit);
}
zfcp_unit_put(unit);
break;
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index f6399ca97bcb..df740f10d26a 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -158,6 +158,7 @@ extern void zfcp_scsi_rport_work(struct work_struct *);
extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *);
extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *);
+extern void zfcp_scsi_scan(struct work_struct *);
/* zfcp_sysfs.c */
extern struct attribute_group zfcp_sysfs_unit_attrs;
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 58201e1ae478..5b11386d70bb 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -583,6 +583,23 @@ void zfcp_scsi_rport_work(struct work_struct *work)
}
+void zfcp_scsi_scan(struct work_struct *work)
+{
+ struct zfcp_unit *unit = container_of(work, struct zfcp_unit,
+ scsi_work);
+ struct fc_rport *rport;
+
+ flush_work(&unit->port->rport_work);
+ rport = unit->port->rport;
+
+ if (rport && rport->port_state == FC_PORTSTATE_ONLINE)
+ scsi_scan_target(&rport->dev, 0, rport->scsi_target_id,
+ scsilun_to_int((struct scsi_lun *)
+ &unit->fcp_lun), 0);
+
+ zfcp_unit_put(unit);
+}
+
struct fc_function_template zfcp_transport_functions = {
.show_starget_port_id = 1,
.show_starget_port_name = 1,
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