Commit 777dc823 authored Mar 21, 2017 by Sagi Grimberg Committed by Jens Axboe Apr 04, 2017

nvmet-rdma: occasionally flush ongoing controller teardown



If we are attacked with establishments/teradowns we need to
make sure we do not consume too much system memory. Thus
let ongoing controller teardowns complete before accepting
new controller establishments.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent dc2ad16a

drivers/nvme/target/rdma.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1199,6 +1199,11 @@ static int nvmet_rdma_queue_connect(struct rdma_cm_id *cm_id,
		}
		queue->port = cm_id->context;

		if (queue->host_qid == 0) {
		/* Let inflight controller teardown complete */
		flush_scheduled_work();
		}

		ret = nvmet_rdma_cm_accept(cm_id, queue, &event->param.conn);
		if (ret)
		goto release_queue;