diff options
| -rw-r--r-- | drivers/infiniband/core/iwpm_msg.c | 6 | ||||
| -rw-r--r-- | drivers/infiniband/core/netlink.c | 12 | ||||
| -rw-r--r-- | include/rdma/rdma_netlink.h | 10 |
3 files changed, 24 insertions, 4 deletions
diff --git a/drivers/infiniband/core/iwpm_msg.c b/drivers/infiniband/core/iwpm_msg.c index a0e7c16d8bd8..add99b92afdf 100644 --- a/drivers/infiniband/core/iwpm_msg.c +++ b/drivers/infiniband/core/iwpm_msg.c @@ -174,7 +174,7 @@ int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client) goto add_mapping_error; nlmsg_request->req_buffer = pm_msg; - ret = ibnl_unicast(skb, nlh, iwpm_user_pid); + ret = ibnl_unicast_wait(skb, nlh, iwpm_user_pid); if (ret) { skb = NULL; /* skb is freed in the netlink send-op handling */ iwpm_user_pid = IWPM_PID_UNDEFINED; @@ -251,7 +251,7 @@ int iwpm_add_and_query_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client) goto query_mapping_error; nlmsg_request->req_buffer = pm_msg; - ret = ibnl_unicast(skb, nlh, iwpm_user_pid); + ret = ibnl_unicast_wait(skb, nlh, iwpm_user_pid); if (ret) { skb = NULL; /* skb is freed in the netlink send-op handling */ err_str = "Unable to send a nlmsg"; @@ -312,7 +312,7 @@ int iwpm_remove_mapping(struct sockaddr_storage *local_addr, u8 nl_client) if (ret) goto remove_mapping_error; - ret = ibnl_unicast(skb, nlh, iwpm_user_pid); + ret = ibnl_unicast_wait(skb, nlh, iwpm_user_pid); if (ret) { skb = NULL; /* skb is freed in the netlink send-op handling */ iwpm_user_pid = IWPM_PID_UNDEFINED; diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c index 94931c474d41..0fc50e15ae22 100644 --- a/drivers/infiniband/core/netlink.c +++ b/drivers/infiniband/core/netlink.c @@ -232,11 +232,21 @@ int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh, { int err; - err = netlink_unicast(nls, skb, pid, 0); + err = netlink_unicast(nls, skb, pid, MSG_DONTWAIT); return (err < 0) ? err : 0; } EXPORT_SYMBOL(ibnl_unicast); +int ibnl_unicast_wait(struct sk_buff *skb, struct nlmsghdr *nlh, + __u32 pid) +{ + int err; + + err = netlink_unicast(nls, skb, pid, 0); + return (err < 0) ? err : 0; +} +EXPORT_SYMBOL(ibnl_unicast_wait); + int ibnl_multicast(struct sk_buff *skb, struct nlmsghdr *nlh, unsigned int group, gfp_t flags) { diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h index 348c102cb5f6..5b1466770917 100644 --- a/include/rdma/rdma_netlink.h +++ b/include/rdma/rdma_netlink.h @@ -64,6 +64,16 @@ int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh, __u32 pid); /** + * Send, with wait/1 retry, the supplied skb to a specific userspace PID. + * @skb: The netlink skb + * @nlh: Header of the netlink message to send + * @pid: Userspace netlink process ID + * Returns 0 on success or a negative error code. + */ +int ibnl_unicast_wait(struct sk_buff *skb, struct nlmsghdr *nlh, + __u32 pid); + +/** * Send the supplied skb to a netlink group. * @skb: The netlink skb * @nlh: Header of the netlink message to send |