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path: root/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
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Diffstat (limited to 'drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c')
-rw-r--r--drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
index 10420a18d02f..7bf518bdbf21 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
@@ -245,12 +245,13 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
spin_lock_init(&qp->sq.lock);
spin_lock_init(&qp->rq.lock);
mutex_init(&qp->mutex);
- atomic_set(&qp->refcnt, 1);
- init_waitqueue_head(&qp->wait);
+ refcount_set(&qp->refcnt, 1);
+ init_completion(&qp->free);
qp->state = IB_QPS_RESET;
+ qp->is_kernel = !(pd->uobject && udata);
- if (pd->uobject && udata) {
+ if (!qp->is_kernel) {
dev_dbg(&dev->pdev->dev,
"create queuepair from user space\n");
@@ -291,8 +292,6 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
qp->npages_recv = 0;
qp->npages = qp->npages_send + qp->npages_recv;
} else {
- qp->is_kernel = true;
-
ret = pvrdma_set_sq_size(to_vdev(pd->device),
&init_attr->cap, qp);
if (ret)
@@ -394,7 +393,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
err_pdir:
pvrdma_page_dir_cleanup(dev, &qp->pdir);
err_umem:
- if (pd->uobject && udata) {
+ if (!qp->is_kernel) {
if (qp->rumem)
ib_umem_release(qp->rumem);
if (qp->sumem)
@@ -428,8 +427,16 @@ static void pvrdma_free_qp(struct pvrdma_qp *qp)
pvrdma_unlock_cqs(scq, rcq, &scq_flags, &rcq_flags);
- atomic_dec(&qp->refcnt);
- wait_event(qp->wait, !atomic_read(&qp->refcnt));
+ if (refcount_dec_and_test(&qp->refcnt))
+ complete(&qp->free);
+ wait_for_completion(&qp->free);
+
+ if (!qp->is_kernel) {
+ if (qp->rumem)
+ ib_umem_release(qp->rumem);
+ if (qp->sumem)
+ ib_umem_release(qp->sumem);
+ }
pvrdma_page_dir_cleanup(dev, &qp->pdir);