diff options
| -rw-r--r-- | drivers/infiniband/core/cm.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 142170473e753..effa53dd68002 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -167,7 +167,7 @@ struct cm_port { struct cm_device { struct kref kref; struct list_head list; - spinlock_t mad_agent_lock; + rwlock_t mad_agent_lock; struct ib_device *ib_device; u8 ack_delay; int going_down; @@ -285,7 +285,7 @@ static struct ib_mad_send_buf *cm_alloc_msg(struct cm_id_private *cm_id_priv) if (!cm_id_priv->av.port) return ERR_PTR(-EINVAL); - spin_lock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); + read_lock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); mad_agent = cm_id_priv->av.port->mad_agent; if (!mad_agent) { m = ERR_PTR(-EINVAL); @@ -311,7 +311,7 @@ static struct ib_mad_send_buf *cm_alloc_msg(struct cm_id_private *cm_id_priv) m->ah = ah; out: - spin_unlock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); + read_unlock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); return m; } @@ -1297,10 +1297,10 @@ static __be64 cm_form_tid(struct cm_id_private *cm_id_priv) if (!cm_id_priv->av.port) return cpu_to_be64(low_tid); - spin_lock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); + read_lock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); if (cm_id_priv->av.port->mad_agent) hi_tid = ((u64)cm_id_priv->av.port->mad_agent->hi_tid) << 32; - spin_unlock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); + read_unlock(&cm_id_priv->av.port->cm_dev->mad_agent_lock); return cpu_to_be64(hi_tid | low_tid); } @@ -4378,7 +4378,7 @@ static int cm_add_one(struct ib_device *ib_device) return -ENOMEM; kref_init(&cm_dev->kref); - spin_lock_init(&cm_dev->mad_agent_lock); + rwlock_init(&cm_dev->mad_agent_lock); cm_dev->ib_device = ib_device; cm_dev->ack_delay = ib_device->attrs.local_ca_ack_delay; cm_dev->going_down = 0; @@ -4494,9 +4494,9 @@ static void cm_remove_one(struct ib_device *ib_device, void *client_data) * The above ensures no call paths from the work are running, * the remaining paths all take the mad_agent_lock. */ - spin_lock(&cm_dev->mad_agent_lock); + write_lock(&cm_dev->mad_agent_lock); port->mad_agent = NULL; - spin_unlock(&cm_dev->mad_agent_lock); + write_unlock(&cm_dev->mad_agent_lock); ib_unregister_mad_agent(mad_agent); ib_port_unregister_client_groups(ib_device, i, cm_counter_groups); |