On Tue, Aug 14, 2018 at 10:41:19AM -0400, Chuck Lever wrote:
> Hi-
>
> /**
> * rdma_create_id - Create an RDMA identifier.
> *
> * @net: The network namespace in which to create the new id.
> * @event_handler: User callback invoked to report events associated with the
> * returned rdma_id.
> * @context: User specified context associated with the id.
> * @ps: RDMA port space.
> * @qp_type: type of queue pair associated with the id.
> *
> * The id holds a reference on the network namespace until it is destroyed.
> */
> #define rdma_create_id(net, event_handler, context, ps, qp_type)
>
> Is it guaranteed that the @event_handler function is called in a
> process context? Code audit suggests it's always a delayed worker
> thread, thus it would always be safe to use spin_lock_bh in the
> event handler function.
>
> Same question for the consumer's QP event handler:
>
> struct ib_qp_init_attr {
> void (*event_handler)(struct ib_event *, void *);
>
> Thanks in advance.
If you find out please add a comment :)
Jason
