This is a note to let you know that I've just added the patch titled
NFSD: Trace stateids returned via DELEGRETURN
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfsd-trace-stateids-returned-via-delegreturn.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a01ccca3e72b539924c1f553458cb6e26a430fbe
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date: Fri Oct 28 10:47:03 2022 -0400
NFSD: Trace stateids returned via DELEGRETURN
[ Upstream commit 20eee313ff4b8a7e71ae9560f5c4ba27cd763005 ]
Handing out a delegation stateid is recorded with the
nfsd_deleg_read tracepoint, but there isn't a matching tracepoint
for recording when the stateid is returned.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2f720433632b8..9351111730834 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -6915,6 +6915,7 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (status)
goto put_stateid;
+ trace_nfsd_deleg_return(stateid);
wake_up_var(d_inode(cstate->current_fh.fh_dentry));
destroy_delegation(dp);
put_stateid:
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 2ed2ba4a79bbd..fb3595987744b 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -604,6 +604,7 @@ DEFINE_STATEID_EVENT(layout_recall_release);
DEFINE_STATEID_EVENT(open);
DEFINE_STATEID_EVENT(deleg_read);
+DEFINE_STATEID_EVENT(deleg_return);
DEFINE_STATEID_EVENT(deleg_recall);
DECLARE_EVENT_CLASS(nfsd_stateseqid_class,
