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
 37TRACE_EVENT(locks_get_lock_context,
 38	TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx),
 39
 40	TP_ARGS(inode, type, ctx),
 41
 42	TP_STRUCT__entry(
 43		__field(unsigned long, i_ino)
 44		__field(dev_t, s_dev)
 45		__field(unsigned char, type)
 46		__field(struct file_lock_context *, ctx)
 47	),
 48
 49	TP_fast_assign(
 50		__entry->s_dev = inode->i_sb->s_dev;
 51		__entry->i_ino = inode->i_ino;
 52		__entry->type = type;
 53		__entry->ctx = ctx;
 54	),
 55
 56	TP_printk("dev=0x%x:0x%x ino=0x%lx type=%s ctx=%p",
 57		  MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
 58		  __entry->i_ino, show_fl_type(__entry->type), __entry->ctx)
 59);
 60
 61DECLARE_EVENT_CLASS(filelock_lock,
 62	TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 63
 64	TP_ARGS(inode, fl, ret),
 65
 66	TP_STRUCT__entry(
 67		__field(struct file_lock *, fl)
 68		__field(unsigned long, i_ino)
 69		__field(dev_t, s_dev)
 70		__field(struct file_lock *, fl_next)
 71		__field(fl_owner_t, fl_owner)
 72		__field(unsigned int, fl_pid)
 73		__field(unsigned int, fl_flags)
 74		__field(unsigned char, fl_type)
 75		__field(loff_t, fl_start)
 76		__field(loff_t, fl_end)
 77		__field(int, ret)
 78	),
 79
 80	TP_fast_assign(
 81		__entry->fl = fl ? fl : NULL;
 82		__entry->s_dev = inode->i_sb->s_dev;
 83		__entry->i_ino = inode->i_ino;
 84		__entry->fl_next = fl ? fl->fl_next : NULL;
 85		__entry->fl_owner = fl ? fl->fl_owner : NULL;
 86		__entry->fl_pid = fl ? fl->fl_pid : 0;
 87		__entry->fl_flags = fl ? fl->fl_flags : 0;
 88		__entry->fl_type = fl ? fl->fl_type : 0;
 89		__entry->fl_start = fl ? fl->fl_start : 0;
 90		__entry->fl_end = fl ? fl->fl_end : 0;
 91		__entry->ret = ret;
 92	),
 93
 94	TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_pid=%u fl_flags=%s fl_type=%s fl_start=%lld fl_end=%lld ret=%d",
 95		__entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
 96		__entry->i_ino, __entry->fl_next, __entry->fl_owner,
 97		__entry->fl_pid, show_fl_flags(__entry->fl_flags),
 98		show_fl_type(__entry->fl_type),
 99		__entry->fl_start, __entry->fl_end, __entry->ret)
100);
101
102DEFINE_EVENT(filelock_lock, posix_lock_inode,
103		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
104		TP_ARGS(inode, fl, ret));
105
106DEFINE_EVENT(filelock_lock, fcntl_setlk,
107		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
108		TP_ARGS(inode, fl, ret));
109
110DEFINE_EVENT(filelock_lock, locks_remove_posix,
111		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
112		TP_ARGS(inode, fl, ret));
113
114DECLARE_EVENT_CLASS(filelock_lease,
115
116	TP_PROTO(struct inode *inode, struct file_lock *fl),
117
118	TP_ARGS(inode, fl),
119
120	TP_STRUCT__entry(
121		__field(struct file_lock *, fl)
122		__field(unsigned long, i_ino)
123		__field(dev_t, s_dev)
124		__field(struct file_lock *, fl_next)
125		__field(fl_owner_t, fl_owner)
126		__field(unsigned int, fl_flags)
127		__field(unsigned char, fl_type)
128		__field(unsigned long, fl_break_time)
129		__field(unsigned long, fl_downgrade_time)
130	),
131
132	TP_fast_assign(
133		__entry->fl = fl ? fl : NULL;
134		__entry->s_dev = inode->i_sb->s_dev;
135		__entry->i_ino = inode->i_ino;
136		__entry->fl_next = fl ? fl->fl_next : NULL;
137		__entry->fl_owner = fl ? fl->fl_owner : NULL;
138		__entry->fl_flags = fl ? fl->fl_flags : 0;
139		__entry->fl_type = fl ? fl->fl_type : 0;
140		__entry->fl_break_time = fl ? fl->fl_break_time : 0;
141		__entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
142	),
143
144	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",
145		__entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
146		__entry->i_ino, __entry->fl_next, __entry->fl_owner,
147		show_fl_flags(__entry->fl_flags),
148		show_fl_type(__entry->fl_type),
149		__entry->fl_break_time, __entry->fl_downgrade_time)
150);
151
152DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
153		TP_ARGS(inode, fl));
154
155DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lock *fl),
156		TP_ARGS(inode, fl));
157
158DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
159		TP_ARGS(inode, fl));
160
161DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
162		TP_ARGS(inode, fl));
163
164DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lock *fl),
165		TP_ARGS(inode, fl));
166
167TRACE_EVENT(generic_add_lease,
168	TP_PROTO(struct inode *inode, struct file_lock *fl),
169
170	TP_ARGS(inode, fl),
171
172	TP_STRUCT__entry(
173		__field(unsigned long, i_ino)
174		__field(int, wcount)
175		__field(int, dcount)
176		__field(int, icount)
177		__field(dev_t, s_dev)
178		__field(fl_owner_t, fl_owner)
179		__field(unsigned int, fl_flags)
180		__field(unsigned char, fl_type)
181	),
182
183	TP_fast_assign(
184		__entry->s_dev = inode->i_sb->s_dev;
185		__entry->i_ino = inode->i_ino;
186		__entry->wcount = atomic_read(&inode->i_writecount);
187		__entry->dcount = d_count(fl->fl_file->f_path.dentry);
188		__entry->icount = atomic_read(&inode->i_count);
189		__entry->fl_owner = fl ? fl->fl_owner : NULL;
190		__entry->fl_flags = fl ? fl->fl_flags : 0;
191		__entry->fl_type = fl ? fl->fl_type : 0;
192	),
193
194	TP_printk("dev=0x%x:0x%x ino=0x%lx wcount=%d dcount=%d icount=%d fl_owner=0x%p fl_flags=%s fl_type=%s",
195		MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
196		__entry->i_ino, __entry->wcount, __entry->dcount,
197		__entry->icount, __entry->fl_owner,
198		show_fl_flags(__entry->fl_flags),
199		show_fl_type(__entry->fl_type))
200);
201
202#endif /* _TRACE_FILELOCK_H */
203
204/* This part must be outside protection */
205#include <trace/define_trace.h>