linux-kernel - [PATCH] locks: add tracepoint in flock codepath

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Message-Id: <20180806180616.9889-1-jlayton@kernel.org>
Date:   Mon,  6 Aug 2018 14:06:16 -0400
From:   Jeff Layton <jlayton@...nel.org>
To:     linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] locks: add tracepoint in flock codepath

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 fs/locks.c                      | 1 +
 include/trace/events/filelock.h | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/locks.c b/fs/locks.c
index e533623e2e99..6138a9bcd924 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -990,6 +990,7 @@ static int flock_lock_inode(struct inode *inode, struct file_lock *request)
 	if (new_fl)
 		locks_free_lock(new_fl);
 	locks_dispose_list(&dispose);
+	trace_flock_lock_inode(inode, request, error);
 	return error;
 }
 
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index d1faf3597b9d..68b17c116907 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -112,8 +112,11 @@ DEFINE_EVENT(filelock_lock, locks_remove_posix,
 		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 		TP_ARGS(inode, fl, ret));
 
-DECLARE_EVENT_CLASS(filelock_lease,
+DEFINE_EVENT(filelock_lock, flock_lock_inode,
+		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
+		TP_ARGS(inode, fl, ret));
 
+DECLARE_EVENT_CLASS(filelock_lease,
 	TP_PROTO(struct inode *inode, struct file_lock *fl),
 
 	TP_ARGS(inode, fl),
-- 
2.17.1