1/*
2 * Events for filesystem locks
3 *
4 * Copyright 2013 Jeff Layton <jlayton@poochiereds.net>
5 */
6#undef TRACE_SYSTEM
7#define TRACE_SYSTEM filelock
8
9#if !defined(_TRACE_FILELOCK_H) || defined(TRACE_HEADER_MULTI_READ)
10#define _TRACE_FILELOCK_H
11
12#include <linux/tracepoint.h>
13#include <linux/fs.h>
14#include <linux/device.h>
15#include <linux/kdev_t.h>
16
17#define show_fl_flags(val)						\
18	__print_flags(val, "|", 					\
19		{ FL_POSIX,		"FL_POSIX" },			\
20		{ FL_FLOCK,		"FL_FLOCK" },			\
21		{ FL_DELEG,		"FL_DELEG" },			\
22		{ FL_ACCESS,		"FL_ACCESS" },			\
23		{ FL_EXISTS,		"FL_EXISTS" },			\
24		{ FL_LEASE,		"FL_LEASE" },			\
25		{ FL_CLOSE,		"FL_CLOSE" },			\
26		{ FL_SLEEP,		"FL_SLEEP" },			\
27		{ FL_DOWNGRADE_PENDING,	"FL_DOWNGRADE_PENDING" },	\
28		{ FL_UNLOCK_PENDING,	"FL_UNLOCK_PENDING" },		\
29		{ FL_OFDLCK,		"FL_OFDLCK" })
30
31#define show_fl_type(val)				\
32	__print_symbolic(val,				\
33			{ F_RDLCK, "F_RDLCK" },		\
34			{ F_WRLCK, "F_WRLCK" },		\
35			{ F_UNLCK, "F_UNLCK" })
36
37DECLARE_EVENT_CLASS(filelock_lease,
38
39	TP_PROTO(struct inode *inode, struct file_lock *fl),
40
41	TP_ARGS(inode, fl),
42
43	TP_STRUCT__entry(
44		__field(struct file_lock *, fl)
45		__field(unsigned long, i_ino)
46		__field(dev_t, s_dev)
47		__field(struct file_lock *, fl_next)
48		__field(fl_owner_t, fl_owner)
49		__field(unsigned int, fl_flags)
50		__field(unsigned char, fl_type)
51		__field(unsigned long, fl_break_time)
52		__field(unsigned long, fl_downgrade_time)
53	),
54
55	TP_fast_assign(
56		__entry->fl = fl ? fl : NULL;
57		__entry->s_dev = inode->i_sb->s_dev;
58		__entry->i_ino = inode->i_ino;
59		__entry->fl_next = fl ? fl->fl_next : NULL;
60		__entry->fl_owner = fl ? fl->fl_owner : NULL;
61		__entry->fl_flags = fl ? fl->fl_flags : 0;
62		__entry->fl_type = fl ? fl->fl_type : 0;
63		__entry->fl_break_time = fl ? fl->fl_break_time : 0;
64		__entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
65	),
66
67	TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu",
68		__entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
69		__entry->i_ino, __entry->fl_next, __entry->fl_owner,
70		show_fl_flags(__entry->fl_flags),
71		show_fl_type(__entry->fl_type),
72		__entry->fl_break_time, __entry->fl_downgrade_time)
73);
74
75DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
76		TP_ARGS(inode, fl));
77
78DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lock *fl),
79		TP_ARGS(inode, fl));
80
81DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
82		TP_ARGS(inode, fl));
83
84DEFINE_EVENT(filelock_lease, generic_add_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
85		TP_ARGS(inode, fl));
86
87DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
88		TP_ARGS(inode, fl));
89
90DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lock *fl),
91		TP_ARGS(inode, fl));
92
93#endif /* _TRACE_FILELOCK_H */
94
95/* This part must be outside protection */
96#include <trace/define_trace.h>
97