Merge branch 'linus' into tracing/core

Merge reason: tracing/core was on a .30-rc1 base and was missing out on
              on a handful of tracing fixes present in .30-rc5-almost.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 16 insertions, 17 deletions

diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index e8d032b9dfbd..19ae0842047c 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -98,13 +98,6 @@ static void zfcp_wka_port_offline(struct work_struct *work)
         struct zfcp_wka_port *wka_port =
                         container_of(dw, struct zfcp_wka_port, work);
 
-        /* Don't wait forvever. If the wka_port is too busy take it offline
-           through a new call later */
-        if (!wait_event_timeout(wka_port->completion_wq,
-                                atomic_read(&wka_port->refcount) == 0,
-                                HZ >> 1))
-                return;
-
         mutex_lock(&wka_port->mutex);
         if ((atomic_read(&wka_port->refcount) != 0) ||
             (wka_port->status != ZFCP_WKA_PORT_ONLINE))
@@ -142,6 +135,14 @@ void zfcp_fc_nameserver_init(struct zfcp_adapter *adapter)
         INIT_DELAYED_WORK(&wka_port->work, zfcp_wka_port_offline);
 }
 
+void zfcp_fc_wka_port_force_offline(struct zfcp_wka_port *wka)
+{
+        cancel_delayed_work_sync(&wka->work);
+        mutex_lock(&wka->mutex);
+        wka->status = ZFCP_WKA_PORT_OFFLINE;
+        mutex_unlock(&wka->mutex);
+}
+
 static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
                                    struct fcp_rscn_element *elem)
 {
@@ -372,7 +373,8 @@ static void zfcp_fc_adisc_handler(unsigned long data)
 
         if (adisc->els.status) {
                 /* request rejected or timed out */
-                zfcp_erp_port_forced_reopen(port, 0, "fcadh_1", NULL);
+                zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
+                                            "fcadh_1", NULL);
                 goto out;
         }
 
@@ -431,11 +433,6 @@ void zfcp_fc_link_test_work(struct work_struct *work)
                 container_of(work, struct zfcp_port, test_link_work);
         int retval;
 
-        if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_UNBLOCKED)) {
-                zfcp_port_put(port);
-                return; /* port erp is running and will update rport status */
-        }
-
         zfcp_port_get(port);
         port->rport_task = RPORT_DEL;
         zfcp_scsi_rport_work(&port->rport_work);
@@ -542,6 +539,9 @@ static void zfcp_validate_port(struct zfcp_port *port)
 {
         struct zfcp_adapter *adapter = port->adapter;
 
+        if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC))
+                return;
+
         atomic_clear_mask(ZFCP_STATUS_COMMON_NOESC, &port->status);
 
         if ((port->supported_classes != 0) ||
@@ -602,10 +602,8 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft, int max_entries)
                 if (acc->wwpn == fc_host_port_name(adapter->scsi_host))
                         continue;
                 port = zfcp_get_port_by_wwpn(adapter, acc->wwpn);
-                if (port) {
-                        zfcp_port_get(port);
+                if (port)
                         continue;
-                }
 
                 port = zfcp_port_enqueue(adapter, acc->wwpn,
                                          ZFCP_STATUS_COMMON_NOESC, d_id);
@@ -637,7 +635,8 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter)
         max_entries = chain ? ZFCP_GPN_FT_MAX_ENTRIES : ZFCP_GPN_FT_ENTRIES;
         max_bytes = chain ? ZFCP_GPN_FT_MAX_SIZE : ZFCP_CT_SIZE_ONE_PAGE;
 
-        if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT)
+        if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT &&
+            fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
                 return 0;
 
         ret = zfcp_wka_port_get(&adapter->nsp);