[SCSI] libsas: replace event locks with atomic bitops

The locks only served to make sure the pending event bitmask was updated
consistently.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 7ecb5c1c0851..de63a664b5e5 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -215,7 +215,6 @@ struct sas_discovery_event {
 };
 
 struct sas_discovery {
-        spinlock_t disc_event_lock;
         struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
         unsigned long    pending;
         u8     fanout_sas_addr[8];
@@ -272,7 +271,6 @@ struct asd_sas_event {
  */
 struct asd_sas_phy {
 /* private: */
-        /* protected by ha->event_lock */
         struct asd_sas_event   port_events[PORT_NUM_EVENTS];
         struct asd_sas_event   phy_events[PHY_NUM_EVENTS];
 
@@ -337,7 +335,6 @@ enum sas_ha_state {
 
 struct sas_ha_struct {
 /* private: */
-        spinlock_t       event_lock;
         struct sas_ha_event ha_events[HA_NUM_EVENTS];
         unsigned long    pending;