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RDMA/cma: Use refcount API to reflect refcount

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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>
This commit is contained in:
Parav Pandit 2020-01-26 16:26:50 +02:00 committed by Jason Gunthorpe
parent 5ff8c8fa44
commit be439912e7
1 changed files with 4 additions and 5 deletions
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9
drivers/infiniband/core/cma.c
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@ -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 rdma_id_private *id_priv,
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;
@ -4657,7 +4656,7 @@ static void cma_add_one(struct ib_device *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);