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authorTrond Myklebust <trond.myklebust@primarydata.com>2017-11-06 15:28:02 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2017-11-17 16:43:45 -0500
commitad9e02dc026b75069f6a336e0daf2d54925967b6 (patch)
tree1aa04eab503439d34d57df69abdc5e5817b08b57
parentc9399f21c215453b414702758b8c4b7d66605eac (diff)
downloadlinux-ad9e02dc026b75069f6a336e0daf2d54925967b6.tar.gz
NFSv4: Add a tracepoint to document open stateid updates
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
-rw-r--r--fs/nfs/nfs4proc.c3
-rw-r--r--fs/nfs/nfs4trace.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cec4bcba65e8..aa8ea518ec6f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1481,6 +1481,7 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
 	if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
 		nfs4_stateid_copy(&state->stateid, stateid);
 	nfs4_stateid_copy(&state->open_stateid, stateid);
+	trace_nfs4_open_stateid_update(state->inode, stateid, 0);
 out:
 	nfs_state_log_update_open_stateid(state);
 }
@@ -1524,6 +1525,7 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state,
 		write_sequnlock(&state->seqlock);
 		spin_unlock(&state->owner->so_lock);
 		rcu_read_unlock();
+		trace_nfs4_open_stateid_update_wait(state->inode, stateid, 0);
 		if (!signal_pending(current)) {
 			if (schedule_timeout(5*HZ) == 0)
 				status = -EAGAIN;
@@ -1545,6 +1547,7 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state,
 	if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
 		nfs4_stateid_copy(&state->stateid, stateid);
 	nfs4_stateid_copy(&state->open_stateid, stateid);
+	trace_nfs4_open_stateid_update(state->inode, stateid, status);
 	nfs_state_log_update_open_stateid(state);
 }
 
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 7a5588c25f70..06ac7156c44b 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -1061,6 +1061,8 @@ DECLARE_EVENT_CLASS(nfs4_inode_stateid_event,
 
 DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_setattr);
 DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_delegreturn);
+DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update);
+DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update_wait);
 
 DECLARE_EVENT_CLASS(nfs4_getattr_event,
 		TP_PROTO(