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path: root/drivers/infiniband/hw/amso1100
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Diffstat (limited to 'drivers/infiniband/hw/amso1100')
-rw-r--r--drivers/infiniband/hw/amso1100/c2_qp.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c b/drivers/infiniband/hw/amso1100/c2_qp.c
index 28cd5cb51859..0ab826b280b2 100644
--- a/drivers/infiniband/hw/amso1100/c2_qp.c
+++ b/drivers/infiniband/hw/amso1100/c2_qp.c
@@ -382,14 +382,17 @@ static int c2_alloc_qpn(struct c2_dev *c2dev, struct c2_qp *qp)
{
int ret;
- do {
- spin_lock_irq(&c2dev->qp_table.lock);
- ret = idr_get_new_above(&c2dev->qp_table.idr, qp,
- c2dev->qp_table.last++, &qp->qpn);
- spin_unlock_irq(&c2dev->qp_table.lock);
- } while ((ret == -EAGAIN) &&
- idr_pre_get(&c2dev->qp_table.idr, GFP_KERNEL));
- return ret;
+ idr_preload(GFP_KERNEL);
+ spin_lock_irq(&c2dev->qp_table.lock);
+
+ ret = idr_alloc(&c2dev->qp_table.idr, qp, c2dev->qp_table.last++, 0,
+ GFP_NOWAIT);
+ if (ret >= 0)
+ qp->qpn = ret;
+
+ spin_unlock_irq(&c2dev->qp_table.lock);
+ idr_preload_end();
+ return ret < 0 ? ret : 0;
}
static void c2_free_qpn(struct c2_dev *c2dev, int qpn)