From: Chuck Lever <chuck.lever@xxxxxxxxxx>
This event brackets the svcrdma_post_* trace points. If this trace
event is enabled but does not appear as expected, that indicates a
chunk_ctxt leak.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
include/trace/events/rpcrdma.h | 8 ++++++++
net/sunrpc/xprtrdma/svc_rdma_rw.c | 2 ++
2 files changed, 10 insertions(+)
diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h
index 8f461e04e5f0..f8069ef2ee0f 100644
--- a/include/trace/events/rpcrdma.h
+++ b/include/trace/events/rpcrdma.h
@@ -2112,6 +2112,14 @@ DEFINE_POST_CHUNK_EVENT(read);
DEFINE_POST_CHUNK_EVENT(write);
DEFINE_POST_CHUNK_EVENT(reply);
+DEFINE_EVENT(svcrdma_post_chunk_class, svcrdma_cc_release,
+ TP_PROTO(
+ const struct rpc_rdma_cid *cid,
+ int sqecount
+ ),
+ TP_ARGS(cid, sqecount)
+);
+
TRACE_EVENT(svcrdma_wc_read,
TP_PROTO(
const struct ib_wc *wc,
diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c
index 59ea87b5f458..9836406cc41e 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_rw.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c
@@ -191,6 +191,8 @@ static void svc_rdma_cc_release(struct svc_rdma_chunk_ctxt *cc,
struct svc_rdma_rw_ctxt *ctxt;
LLIST_HEAD(free);
+ trace_svcrdma_cc_release(&cc->cc_cid, cc->cc_sqecount);
+
first = last = NULL;
while ((ctxt = svc_rdma_next_ctxt(&cc->cc_rwctxts)) != NULL) {
list_del(&ctxt->rw_list);
