Convert to the much saner new idr interface.
Only compile tested.
Signed-off-by: Tejun Heo <t...@kernel.org>
Cc: Tom Tucker <t...@opengridcomputing.com>
Cc: Steve Wise <sw...@opengridcomputing.com>
Cc: linux-r...@vger.kernel.org
---
This patch depends on an earlier idr changes and I think it would be
best to route these together through -mm. Please holler if there's
any objection. Thanks.
drivers/infiniband/hw/amso1100/c2_qp.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c
b/drivers/infiniband/hw/amso1100/c2_qp.c
index 28cd5cb..0ab826b 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)
--
1.8.1
--
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