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Subject[PATCH] RDMA/hfi1: Switch to kvfree_rcu() API
Date
Instead of invoking a synchronize_rcu() to free a pointer
after a grace period we can directly make use of new API
that does the same but in more efficient way.

TO: linux-rdma@vger.kernel.org
TO: Jason Gunthorpe <jgg@nvidia.com>
TO: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
drivers/infiniband/hw/hfi1/sdma.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index f07d328689d3..7264a35e8f4c 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -1292,8 +1292,7 @@ void sdma_clean(struct hfi1_devdata *dd, size_t num_engines)
sdma_map_free(rcu_access_pointer(dd->sdma_map));
RCU_INIT_POINTER(dd->sdma_map, NULL);
spin_unlock_irq(&dd->sde_map_lock);
- synchronize_rcu();
- kfree(dd->per_sdma);
+ kvfree_rcu(dd->per_sdma);
dd->per_sdma = NULL;

if (dd->sdma_rht) {
--
2.30.2
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