Some of the most common cases are traced. Enough infrastructure is
now in place that more can be added later, as needed.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 12 +++++++++---
fs/nfsd/trace.h | 1 +
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index b6da4abd42a0..aa645aeee7b6 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3178,6 +3178,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
}
/* case 6 */
exid->flags |= EXCHGID4_FLAG_CONFIRMED_R;
+ trace_nfsd_clid_confirmed_r(conf);
goto out_copy;
}
if (!creds_match) { /* case 3 */
@@ -3190,6 +3191,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
}
if (verfs_match) { /* case 2 */
conf->cl_exchange_flags |= EXCHGID4_FLAG_CONFIRMED_R;
+ trace_nfsd_clid_confirmed_r(conf);
goto out_copy;
}
/* case 5, client reboot */
@@ -3203,11 +3205,13 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
}
- unconf = find_unconfirmed_client_by_name(&exid->clname, nn);
+ unconf = find_unconfirmed_client_by_name(&exid->clname, nn);
if (unconf) /* case 4, possible retry or client restart */
unhash_client_locked(unconf);
- /* case 1 (normal case) */
+ /* case 1, new owner ID */
+ trace_nfsd_clid_fresh(new);
+
out_new:
if (conf) {
status = mark_client_expired_locked(conf);
@@ -3237,8 +3241,10 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
out_nolock:
if (new)
expire_client(new);
- if (unconf)
+ if (unconf) {
+ trace_nfsd_clid_expire_unconf(&unconf->cl_clientid);
expire_client(unconf);
+ }
return status;
}
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 33fba6dbdc4a..39b7caea4664 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -636,6 +636,7 @@ DEFINE_EVENT(nfsd_clid_class, nfsd_clid_##name, \
TP_ARGS(clp))
DEFINE_CLID_EVENT(fresh);
+DEFINE_CLID_EVENT(confirmed_r);
/*
* from fs/nfsd/filecache.h
