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From: Trond Myklebust <trond.myklebust@primarydata.com>
To: Benjamin Coddington <bcodding@redhat.com>,
	Anna Schumaker <anna.schumaker@netapp.com>
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH v6 02/10] NFSv4: Add a tracepoint to document open stateid updates
Date: Fri,  3 Nov 2017 12:53:46 -0400	[thread overview]
Message-ID: <20171103165354.15997-3-trond.myklebust@primarydata.com> (raw)
In-Reply-To: <20171103165354.15997-2-trond.myklebust@primarydata.com>

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
 fs/nfs/nfs4proc.c  | 3 +++
 fs/nfs/nfs4trace.h | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6e3cfa00b4ea..d720b076a34d 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);
 }
 
 static void nfs_state_set_open_stateid(struct nfs4_state *state,
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index e7c6275519b0..bf92cfd627fe 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -1066,6 +1066,8 @@ 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(
-- 
2.13.6

  reply	other threads:[~2017-11-03 16:53 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-03 16:53 [PATCH v6 00/10] Fix OPEN/CLOSE races Trond Myklebust
2017-11-03 16:53 ` [PATCH v6 01/10] NFSv4: Fix OPEN / CLOSE race Trond Myklebust
2017-11-03 16:53   ` Trond Myklebust [this message]
2017-11-03 16:53     ` [PATCH v6 03/10] NFSv4: Fix open create exclusive when the server reboots Trond Myklebust
2017-11-03 16:53       ` [PATCH v6 04/10] NFS: Fix a typo in nfs_rename() Trond Myklebust
2017-11-03 16:53         ` [PATCH v6 05/10] NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID Trond Myklebust
2017-11-03 16:53           ` [PATCH v6 06/10] NFSv4: Don't try to CLOSE if the stateid 'other' field has changed Trond Myklebust
2017-11-03 16:53             ` [PATCH v6 07/10] pNFS: Retry NFS4ERR_OLD_STATEID errors in layoutreturn-on-close Trond Myklebust
2017-11-03 16:53               ` [PATCH v6 08/10] NFSv4: Retry NFS4ERR_OLD_STATEID errors in layoutreturn Trond Myklebust
2017-11-03 16:53                 ` [PATCH v6 09/10] NFSv4: cleanup nfs4_close_done Trond Myklebust
2017-11-03 16:53                   ` [PATCH v6 10/10] NFSv4: Clean up nfs4_delegreturn_done Trond Myklebust
2017-11-06  2:46           ` [PATCH v6 05/10] NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID Andrew W Elble
2017-11-06  3:10             ` Trond Myklebust

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