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authorChuck Lever <chuck.lever@oracle.com>2021-05-14 15:57:26 -0400
committerJ. Bruce Fields <bfields@redhat.com>2021-05-18 13:44:04 -0400
commit4ade892ae1c35527584decb7fa026553d53cd03f (patch)
tree8c422947eaf2a7bae9e5864583c94520c5cbea6d
parent17d76ddf76e4972411402743eea7243d9a46f4f9 (diff)
NFSD: Add an nfsd_cb_probe tracepoint
Record a tracepoint event when the server performs a callback probe. This event can be enabled as a group with other nfsd_cb tracepoints. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
-rw-r--r--fs/nfsd/nfs4callback.c1
-rw-r--r--fs/nfsd/trace.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index c2a2a58b3581..ddab969d7865 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -998,6 +998,7 @@ static const struct rpc_call_ops nfsd4_cb_probe_ops = {
*/
void nfsd4_probe_callback(struct nfs4_client *clp)
{
+ trace_nfsd_cb_probe(clp);
nfsd4_mark_cb_state(clp, NFSD4_CB_UNKNOWN);
set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags);
nfsd4_run_cb(&clp->cl_cb_null);
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index b7ede12f0ab1..2cdcf53a2c41 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -910,6 +910,7 @@ DEFINE_EVENT(nfsd_cb_class, nfsd_cb_##name, \
TP_ARGS(clp))
DEFINE_NFSD_CB_EVENT(state);
+DEFINE_NFSD_CB_EVENT(probe);
DEFINE_NFSD_CB_EVENT(lost);
DEFINE_NFSD_CB_EVENT(shutdown);