From: Parav Pandit <parav@mellanox.com>
Date: Sun, 26 Jan 2020 16:26:50 +0200
Subject: RDMA/cma: Use refcount API to reflect refcount
Patch-mainline: v5.7-rc1
Git-commit: be439912e7c2e3e78ebd087932c165a83bdca6b5
References: jsc#SLE-15176
Use the refcount variant to capture the reference counting of the cma
device structure.
Link: https://lore.kernel.org/r/20200126142652.104803-6-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/cma.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -199,7 +199,7 @@ struct cma_device {
struct list_head list;
struct ib_device *device;
struct completion comp;
- atomic_t refcount;
+ refcount_t refcount;
struct list_head id_list;
enum ib_gid_type *default_gid_type;
u8 *default_roce_tos;
@@ -249,12 +249,12 @@ enum {
void cma_dev_get(struct cma_device *cma_dev)
{
- atomic_inc(&cma_dev->refcount);
+ refcount_inc(&cma_dev->refcount);
}
void cma_dev_put(struct cma_device *cma_dev)
{
- if (atomic_dec_and_test(&cma_dev->refcount))
+ if (refcount_dec_and_test(&cma_dev->refcount))
complete(&cma_dev->comp);
}
@@ -754,7 +754,6 @@ static int cma_iw_acquire_dev(struct rdm
list_for_each_entry(cma_dev, &dev_list, list) {
rdma_for_each_port (cma_dev->device, port) {
-
if (listen_id_priv->cma_dev == cma_dev &&
listen_id_priv->id.port_num == port)
continue;
@@ -4664,7 +4663,7 @@ static void cma_add_one(struct ib_device
}
init_completion(&cma_dev->comp);
- atomic_set(&cma_dev->refcount, 1);
+ refcount_set(&cma_dev->refcount, 1);
INIT_LIST_HEAD(&cma_dev->id_list);
ib_set_client_data(device, &cma_client, cma_dev);