diff options
| author | Shay Drory <shayd@mellanox.com> | 2020-06-21 13:47:37 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-06-24 22:43:45 +0300 |
| commit | e41c425349bc9fa5399717c21f77bb7cd911084f (patch) | |
| tree | 3f932a59b600635a550705974c72b056edc187a4 /drivers/infiniband/core/mad.c | |
| parent | b9af0e2d5aeab77bef33bd3df073c3c96b69ec79 (diff) | |
| download | linux-e41c425349bc9fa5399717c21f77bb7cd911084f.tar.xz | |
IB/mad: Change atomics to refcount API
The refcount API provides better safety than atomics API. Therefore,
change atomic functions to refcount functions.
Link: https://lore.kernel.org/r/20200621104738.54850-4-leon@kernel.org
Signed-off-by: Shay Drory <shayd@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core/mad.c')
| -rw-r--r-- | drivers/infiniband/core/mad.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 1135f2a5231a..1a7f364e9677 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -402,7 +402,7 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device, INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends); INIT_LIST_HEAD(&mad_agent_priv->local_list); INIT_WORK(&mad_agent_priv->local_work, local_completions); - atomic_set(&mad_agent_priv->refcount, 1); + refcount_set(&mad_agent_priv->refcount, 1); init_completion(&mad_agent_priv->comp); ret2 = ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type); @@ -484,7 +484,7 @@ EXPORT_SYMBOL(ib_register_mad_agent); static inline void deref_mad_agent(struct ib_mad_agent_private *mad_agent_priv) { - if (atomic_dec_and_test(&mad_agent_priv->refcount)) + if (refcount_dec_and_test(&mad_agent_priv->refcount)) complete(&mad_agent_priv->comp); } @@ -718,7 +718,7 @@ static int handle_outgoing_dr_smp(struct ib_mad_agent_private *mad_agent_priv, * Reference MAD agent until receive * side of local completion handled */ - atomic_inc(&mad_agent_priv->refcount); + refcount_inc(&mad_agent_priv->refcount); } else kfree(mad_priv); break; @@ -758,7 +758,7 @@ static int handle_outgoing_dr_smp(struct ib_mad_agent_private *mad_agent_priv, local->return_wc_byte_len = mad_size; } /* Reference MAD agent until send side of local completion handled */ - atomic_inc(&mad_agent_priv->refcount); + refcount_inc(&mad_agent_priv->refcount); /* Queue local completion to local list */ spin_lock_irqsave(&mad_agent_priv->lock, flags); list_add_tail(&local->completion_list, &mad_agent_priv->local_list); @@ -916,7 +916,7 @@ struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent, } mad_send_wr->send_buf.mad_agent = mad_agent; - atomic_inc(&mad_agent_priv->refcount); + refcount_inc(&mad_agent_priv->refcount); return &mad_send_wr->send_buf; } EXPORT_SYMBOL(ib_create_send_mad); @@ -1131,7 +1131,7 @@ int ib_post_send_mad(struct ib_mad_send_buf *send_buf, mad_send_wr->status = IB_WC_SUCCESS; /* Reference MAD agent until send completes */ - atomic_inc(&mad_agent_priv->refcount); + refcount_inc(&mad_agent_priv->refcount); spin_lock_irqsave(&mad_agent_priv->lock, flags); list_add_tail(&mad_send_wr->agent_list, &mad_agent_priv->send_list); @@ -1554,7 +1554,7 @@ find_mad_agent(struct ib_mad_port_private *port_priv, hi_tid = be64_to_cpu(mad_hdr->tid) >> 32; rcu_read_lock(); mad_agent = xa_load(&ib_mad_clients, hi_tid); - if (mad_agent && !atomic_inc_not_zero(&mad_agent->refcount)) + if (mad_agent && !refcount_inc_not_zero(&mad_agent->refcount)) mad_agent = NULL; rcu_read_unlock(); } else { @@ -1606,7 +1606,7 @@ find_mad_agent(struct ib_mad_port_private *port_priv, } } if (mad_agent) - atomic_inc(&mad_agent->refcount); + refcount_inc(&mad_agent->refcount); out: spin_unlock_irqrestore(&port_priv->reg_lock, flags); } |