1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Events for filesystem locks
4 *
5 * Copyright 2013 Jeff Layton <jlayton@poochiereds.net>
6 */
7#undef TRACE_SYSTEM
8#define TRACE_SYSTEM filelock
9
10#if !defined(_TRACE_FILELOCK_H) || defined(TRACE_HEADER_MULTI_READ)
11#define _TRACE_FILELOCK_H
12
13#include <linux/tracepoint.h>
14#include <linux/fs.h>
15#include <linux/device.h>
16#include <linux/kdev_t.h>
17
18#define show_fl_flags(val) \
19 __print_flags(val, "|", \
20 { FL_POSIX, "FL_POSIX" }, \
21 { FL_FLOCK, "FL_FLOCK" }, \
22 { FL_DELEG, "FL_DELEG" }, \
23 { FL_ACCESS, "FL_ACCESS" }, \
24 { FL_EXISTS, "FL_EXISTS" }, \
25 { FL_LEASE, "FL_LEASE" }, \
26 { FL_CLOSE, "FL_CLOSE" }, \
27 { FL_SLEEP, "FL_SLEEP" }, \
28 { FL_DOWNGRADE_PENDING, "FL_DOWNGRADE_PENDING" }, \
29 { FL_UNLOCK_PENDING, "FL_UNLOCK_PENDING" }, \
30 { FL_OFDLCK, "FL_OFDLCK" }, \
31 { FL_RECLAIM, "FL_RECLAIM"})
32
33#define show_fl_type(val) \
34 __print_symbolic(val, \
35 { F_RDLCK, "F_RDLCK" }, \
36 { F_WRLCK, "F_WRLCK" }, \
37 { F_UNLCK, "F_UNLCK" })
38
39TRACE_EVENT(locks_get_lock_context,
40 TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx),
41
42 TP_ARGS(inode, type, ctx),
43
44 TP_STRUCT__entry(
45 __field(unsigned long, i_ino)
46 __field(dev_t, s_dev)
47 __field(unsigned char, type)
48 __field(struct file_lock_context *, ctx)
49 ),
50
51 TP_fast_assign(
52 __entry->s_dev = inode->i_sb->s_dev;
53 __entry->i_ino = inode->i_ino;
54 __entry->type = type;
55 __entry->ctx = ctx;
56 ),
57
58 TP_printk("dev=0x%x:0x%x ino=0x%lx type=%s ctx=%p",
59 MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
60 __entry->i_ino, show_fl_type(__entry->type), __entry->ctx)
61);
62
63DECLARE_EVENT_CLASS(filelock_lock,
64 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
65
66 TP_ARGS(inode, fl, ret),
67
68 TP_STRUCT__entry(
69 __field(struct file_lock *, fl)
70 __field(unsigned long, i_ino)
71 __field(dev_t, s_dev)
72 __field(struct file_lock_core *, blocker)
73 __field(fl_owner_t, owner)
74 __field(unsigned int, pid)
75 __field(unsigned int, flags)
76 __field(unsigned char, type)
77 __field(loff_t, fl_start)
78 __field(loff_t, fl_end)
79 __field(int, ret)
80 ),
81
82 TP_fast_assign(
83 __entry->fl = fl ? fl : NULL;
84 __entry->s_dev = inode->i_sb->s_dev;
85 __entry->i_ino = inode->i_ino;
86 __entry->blocker = fl ? fl->c.flc_blocker : NULL;
87 __entry->owner = fl ? fl->c.flc_owner : NULL;
88 __entry->pid = fl ? fl->c.flc_pid : 0;
89 __entry->flags = fl ? fl->c.flc_flags : 0;
90 __entry->type = fl ? fl->c.flc_type : 0;
91 __entry->fl_start = fl ? fl->fl_start : 0;
92 __entry->fl_end = fl ? fl->fl_end : 0;
93 __entry->ret = ret;
94 ),
95
96 TP_printk("fl=%p dev=0x%x:0x%x ino=0x%lx fl_blocker=%p fl_owner=%p fl_pid=%u fl_flags=%s fl_type=%s fl_start=%lld fl_end=%lld ret=%d",
97 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
98 __entry->i_ino, __entry->blocker, __entry->owner,
99 __entry->pid, show_fl_flags(__entry->flags),
100 show_fl_type(__entry->type),
101 __entry->fl_start, __entry->fl_end, __entry->ret)
102);
103
104DEFINE_EVENT(filelock_lock, posix_lock_inode,
105 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
106 TP_ARGS(inode, fl, ret));
107
108DEFINE_EVENT(filelock_lock, fcntl_setlk,
109 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
110 TP_ARGS(inode, fl, ret));
111
112DEFINE_EVENT(filelock_lock, locks_remove_posix,
113 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
114 TP_ARGS(inode, fl, ret));
115
116DEFINE_EVENT(filelock_lock, flock_lock_inode,
117 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
118 TP_ARGS(inode, fl, ret));
119
120DECLARE_EVENT_CLASS(filelock_lease,
121 TP_PROTO(struct inode *inode, struct file_lease *fl),
122
123 TP_ARGS(inode, fl),
124
125 TP_STRUCT__entry(
126 __field(struct file_lease *, fl)
127 __field(unsigned long, i_ino)
128 __field(dev_t, s_dev)
129 __field(struct file_lock_core *, blocker)
130 __field(fl_owner_t, owner)
131 __field(unsigned int, flags)
132 __field(unsigned char, type)
133 __field(unsigned long, break_time)
134 __field(unsigned long, downgrade_time)
135 ),
136
137 TP_fast_assign(
138 __entry->fl = fl ? fl : NULL;
139 __entry->s_dev = inode->i_sb->s_dev;
140 __entry->i_ino = inode->i_ino;
141 __entry->blocker = fl ? fl->c.flc_blocker : NULL;
142 __entry->owner = fl ? fl->c.flc_owner : NULL;
143 __entry->flags = fl ? fl->c.flc_flags : 0;
144 __entry->type = fl ? fl->c.flc_type : 0;
145 __entry->break_time = fl ? fl->fl_break_time : 0;
146 __entry->downgrade_time = fl ? fl->fl_downgrade_time : 0;
147 ),
148
149 TP_printk("fl=%p dev=0x%x:0x%x ino=0x%lx fl_blocker=%p fl_owner=%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu",
150 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
151 __entry->i_ino, __entry->blocker, __entry->owner,
152 show_fl_flags(__entry->flags),
153 show_fl_type(__entry->type),
154 __entry->break_time, __entry->downgrade_time)
155);
156
157DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lease *fl),
158 TP_ARGS(inode, fl));
159
160DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lease *fl),
161 TP_ARGS(inode, fl));
162
163DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lease *fl),
164 TP_ARGS(inode, fl));
165
166DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lease *fl),
167 TP_ARGS(inode, fl));
168
169DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lease *fl),
170 TP_ARGS(inode, fl));
171
172TRACE_EVENT(generic_add_lease,
173 TP_PROTO(struct inode *inode, struct file_lease *fl),
174
175 TP_ARGS(inode, fl),
176
177 TP_STRUCT__entry(
178 __field(unsigned long, i_ino)
179 __field(int, wcount)
180 __field(int, rcount)
181 __field(int, icount)
182 __field(dev_t, s_dev)
183 __field(fl_owner_t, owner)
184 __field(unsigned int, flags)
185 __field(unsigned char, type)
186 ),
187
188 TP_fast_assign(
189 __entry->s_dev = inode->i_sb->s_dev;
190 __entry->i_ino = inode->i_ino;
191 __entry->wcount = atomic_read(&inode->i_writecount);
192 __entry->rcount = atomic_read(&inode->i_readcount);
193 __entry->icount = icount_read(inode);
194 __entry->owner = fl->c.flc_owner;
195 __entry->flags = fl->c.flc_flags;
196 __entry->type = fl->c.flc_type;
197 ),
198
199 TP_printk("dev=0x%x:0x%x ino=0x%lx wcount=%d rcount=%d icount=%d fl_owner=%p fl_flags=%s fl_type=%s",
200 MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
201 __entry->i_ino, __entry->wcount, __entry->rcount,
202 __entry->icount, __entry->owner,
203 show_fl_flags(__entry->flags),
204 show_fl_type(__entry->type))
205);
206
207TRACE_EVENT(leases_conflict,
208 TP_PROTO(bool conflict, struct file_lease *lease, struct file_lease *breaker),
209
210 TP_ARGS(conflict, lease, breaker),
211
212 TP_STRUCT__entry(
213 __field(void *, lease)
214 __field(void *, breaker)
215 __field(unsigned int, l_fl_flags)
216 __field(unsigned int, b_fl_flags)
217 __field(unsigned char, l_fl_type)
218 __field(unsigned char, b_fl_type)
219 __field(bool, conflict)
220 ),
221
222 TP_fast_assign(
223 __entry->lease = lease;
224 __entry->l_fl_flags = lease->c.flc_flags;
225 __entry->l_fl_type = lease->c.flc_type;
226 __entry->breaker = breaker;
227 __entry->b_fl_flags = breaker->c.flc_flags;
228 __entry->b_fl_type = breaker->c.flc_type;
229 __entry->conflict = conflict;
230 ),
231
232 TP_printk("conflict %d: lease=%p fl_flags=%s fl_type=%s; breaker=%p fl_flags=%s fl_type=%s",
233 __entry->conflict,
234 __entry->lease,
235 show_fl_flags(__entry->l_fl_flags),
236 show_fl_type(__entry->l_fl_type),
237 __entry->breaker,
238 show_fl_flags(__entry->b_fl_flags),
239 show_fl_type(__entry->b_fl_type))
240);
241
242#endif /* _TRACE_FILELOCK_H */
243
244/* This part must be outside protection */
245#include <trace/define_trace.h>
246