sunrpc/xprtrdma: clean up workqueue usage
* Create and use svc_rdma_wq instead of using the system workqueue and
flush_scheduled_work(). This workqueue is necessary to serve as
flushing domain for rdma->sc_work which is used to destroy itself
and thus can't be flushed explicitly.
* Replace cancel_delayed_work() + flush_scheduled_work() with
cancel_delayed_work_sync().
* Implement synchronous connect in xprt_rdma_connect() using
flush_delayed_work() on the rdma_connect work instead of using
flush_scheduled_work().
This is to prepare for the deprecation and removal of
flush_scheduled_work().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 2da32b4..0867070 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -237,8 +237,7 @@
dprintk("RPC: %s: called\n", __func__);
- cancel_delayed_work(&r_xprt->rdma_connect);
- flush_scheduled_work();
+ cancel_delayed_work_sync(&r_xprt->rdma_connect);
xprt_clear_connected(xprt);
@@ -448,7 +447,7 @@
} else {
schedule_delayed_work(&r_xprt->rdma_connect, 0);
if (!RPC_IS_ASYNC(task))
- flush_scheduled_work();
+ flush_delayed_work(&r_xprt->rdma_connect);
}
}