Commit a23c76e9 authored Jun 12, 2023 by Chuck Lever

svcrdma: trace cc_release calls



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.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

parent 91f8ce28

include/trace/events/rpcrdma.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -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,

net/sunrpc/xprtrdma/svc_rdma_rw.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);