diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2021-05-14 22:56:19 +0300 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2021-05-18 20:44:03 +0300 |
| commit | e8f80c5545ec5794644b48537449e48b009d608d (patch) | |
| tree | accea40eb68d5bed4328e4fa187b280c5dd8bc72 | |
| parent | 237f91c85acef206a33bc02f3c4e856128fd7994 (diff) | |
| download | linux-e8f80c5545ec5794644b48537449e48b009d608d.tar.xz | |
NFSD: Add tracepoints for EXCHANGEID edge cases
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@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 12 | ||||
| -rw-r--r-- | 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 @@ out: 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 |