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path: root/drivers/infiniband/sw/rxe/rxe_cq.c
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Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_cq.c')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_cq.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_cq.c b/drivers/infiniband/sw/rxe/rxe_cq.c
index 49fe42c23f4d..c4aabf78dc90 100644
--- a/drivers/infiniband/sw/rxe/rxe_cq.c
+++ b/drivers/infiniband/sw/rxe/rxe_cq.c
@@ -69,6 +69,14 @@ err1:
static void rxe_send_complete(unsigned long data)
{
struct rxe_cq *cq = (struct rxe_cq *)data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cq->cq_lock, flags);
+ if (cq->is_dying) {
+ spin_unlock_irqrestore(&cq->cq_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&cq->cq_lock, flags);
cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
}
@@ -97,6 +105,8 @@ int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
if (udata)
cq->is_user = 1;
+ cq->is_dying = false;
+
tasklet_init(&cq->comp_task, rxe_send_complete, (unsigned long)cq);
spin_lock_init(&cq->cq_lock);
@@ -156,6 +166,15 @@ int rxe_cq_post(struct rxe_cq *cq, struct rxe_cqe *cqe, int solicited)
return 0;
}
+void rxe_cq_disable(struct rxe_cq *cq)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&cq->cq_lock, flags);
+ cq->is_dying = true;
+ spin_unlock_irqrestore(&cq->cq_lock, flags);
+}
+
void rxe_cq_cleanup(struct rxe_pool_entry *arg)
{
struct rxe_cq *cq = container_of(arg, typeof(*cq), pelem);