[SCSI] zfcp: Remove global config_mutex

The global config_mutex was required for the serialization of a
configuration change within the zfcp driver.  This global locking is
now obsolete and can be removed.  The requirement of serializing the
access to a zfcp_adapter reference via a ccw_device is realized wth a
static spinlock.

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@suse.de>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 55dc402c3aec..7e84e1624d16 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -595,7 +595,6 @@ struct zfcp_fsf_req {
 struct zfcp_data {
         struct scsi_host_template scsi_host_template;
         struct scsi_transport_template *scsi_transport_template;
-        struct mutex            config_mutex;
         struct kmem_cache       *gpn_ft_cache;
         struct kmem_cache       *qtcb_cache;
         struct kmem_cache       *sr_buffer_cache;