If there are many establishments/teardowns, we need to make sure
we do not consume too much system memory. Thus let on going
session closing to finish before accepting new connection.
Inspired by commit 777dc82395de ("nvmet-rdma: occasionally flush ongoing controller teardown")
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxx>
Reviewed-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
---
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index ed4628f032bb..0a2202c28b54 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -1791,6 +1791,10 @@ static int rtrs_rdma_connect(struct rdma_cm_id *cm_id,
err = -ENOMEM;
goto reject_w_err;
}
+ if (!cid) {
+ /* Let inflight session teardown complete */
+ flush_workqueue(rtrs_wq);
+ }
mutex_lock(&srv->paths_mutex);
sess = __find_sess(srv, &msg->sess_uuid);
if (sess) {
--
2.25.1
