include/trace/events/filelock.h

   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
  32 #define show_fl_type(val)                               \
  33         __print_symbolic(val,                           \
  34                         { F_RDLCK, "F_RDLCK" },         \
  35                         { F_WRLCK, "F_WRLCK" },         \
  36                         { F_UNLCK, "F_UNLCK" })
  37
  38 TRACE_EVENT(locks_get_lock_context,
  39         TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx),
  40
  41         TP_ARGS(inode, type, ctx),
  42
  43         TP_STRUCT__entry(
  44                 __field(unsigned long, i_ino)
  45                 __field(dev_t, s_dev)
  46                 __field(unsigned char, type)
  47                 __field(struct file_lock_context *, ctx)
  48         ),
  49
  50         TP_fast_assign(
  51                 __entry->s_dev = inode->i_sb->s_dev;
  52                 __entry->i_ino = inode->i_ino;
  53                 __entry->type = type;
  54                 __entry->ctx = ctx;
  55         ),
  56
  57         TP_printk("dev=0x%x:0x%x ino=0x%lx type=%s ctx=%p",
  58                   MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  59                   __entry->i_ino, show_fl_type(__entry->type), __entry->ctx)
  60 );
  61
  62 DECLARE_EVENT_CLASS(filelock_lock,
  63         TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
  64
  65         TP_ARGS(inode, fl, ret),
  66
  67         TP_STRUCT__entry(
  68                 __field(struct file_lock *, fl)
  69                 __field(unsigned long, i_ino)
  70                 __field(dev_t, s_dev)
  71                 __field(struct file_lock *, fl_blocker)
  72                 __field(fl_owner_t, fl_owner)
  73                 __field(unsigned int, fl_pid)
  74                 __field(unsigned int, fl_flags)
  75                 __field(unsigned char, fl_type)
  76                 __field(loff_t, fl_start)
  77                 __field(loff_t, fl_end)
  78                 __field(int, ret)
  79         ),
  80
  81         TP_fast_assign(
  82                 __entry->fl = fl ? fl : NULL;
  83                 __entry->s_dev = inode->i_sb->s_dev;
  84                 __entry->i_ino = inode->i_ino;
  85                 __entry->fl_blocker = fl ? fl->fl_blocker : NULL;
  86                 __entry->fl_owner = fl ? fl->fl_owner : NULL;
  87                 __entry->fl_pid = fl ? fl->fl_pid : 0;
  88                 __entry->fl_flags = fl ? fl->fl_flags : 0;
  89                 __entry->fl_type = fl ? fl->fl_type : 0;
  90                 __entry->fl_start = fl ? fl->fl_start : 0;
  91                 __entry->fl_end = fl ? fl->fl_end : 0;
  92                 __entry->ret = ret;
  93         ),
  94
  95         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",
  96                 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  97                 __entry->i_ino, __entry->fl_blocker, __entry->fl_owner,
  98                 __entry->fl_pid, show_fl_flags(__entry->fl_flags),
  99                 show_fl_type(__entry->fl_type),
 100                 __entry->fl_start, __entry->fl_end, __entry->ret)
 101 );
 102
 103 DEFINE_EVENT(filelock_lock, posix_lock_inode,
 104                 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 105                 TP_ARGS(inode, fl, ret));
 106
 107 DEFINE_EVENT(filelock_lock, fcntl_setlk,
 108                 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 109                 TP_ARGS(inode, fl, ret));
 110
 111 DEFINE_EVENT(filelock_lock, locks_remove_posix,
 112                 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 113                 TP_ARGS(inode, fl, ret));
 114
 115 DEFINE_EVENT(filelock_lock, flock_lock_inode,
 116                 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 117                 TP_ARGS(inode, fl, ret));
 118
 119 DECLARE_EVENT_CLASS(filelock_lease,
 120         TP_PROTO(struct inode *inode, struct file_lock *fl),
 121
 122         TP_ARGS(inode, fl),
 123
 124         TP_STRUCT__entry(
 125                 __field(struct file_lock *, fl)
 126                 __field(unsigned long, i_ino)
 127                 __field(dev_t, s_dev)
 128                 __field(struct file_lock *, fl_blocker)
 129                 __field(fl_owner_t, fl_owner)
 130                 __field(unsigned int, fl_flags)
 131                 __field(unsigned char, fl_type)
 132                 __field(unsigned long, fl_break_time)
 133                 __field(unsigned long, fl_downgrade_time)
 134         ),
 135
 136         TP_fast_assign(
 137                 __entry->fl = fl ? fl : NULL;
 138                 __entry->s_dev = inode->i_sb->s_dev;
 139                 __entry->i_ino = inode->i_ino;
 140                 __entry->fl_blocker = fl ? fl->fl_blocker : NULL;
 141                 __entry->fl_owner = fl ? fl->fl_owner : NULL;
 142                 __entry->fl_flags = fl ? fl->fl_flags : 0;
 143                 __entry->fl_type = fl ? fl->fl_type : 0;
 144                 __entry->fl_break_time = fl ? fl->fl_break_time : 0;
 145                 __entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
 146         ),
 147
 148         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",
 149                 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
 150                 __entry->i_ino, __entry->fl_blocker, __entry->fl_owner,
 151                 show_fl_flags(__entry->fl_flags),
 152                 show_fl_type(__entry->fl_type),
 153                 __entry->fl_break_time, __entry->fl_downgrade_time)
 154 );
 155
 156 DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
 157                 TP_ARGS(inode, fl));
 158
 159 DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lock *fl),
 160                 TP_ARGS(inode, fl));
 161
 162 DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
 163                 TP_ARGS(inode, fl));
 164
 165 DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
 166                 TP_ARGS(inode, fl));
 167
 168 DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lock *fl),
 169                 TP_ARGS(inode, fl));
 170
 171 TRACE_EVENT(generic_add_lease,
 172         TP_PROTO(struct inode *inode, struct file_lock *fl),
 173
 174         TP_ARGS(inode, fl),
 175
 176         TP_STRUCT__entry(
 177                 __field(unsigned long, i_ino)
 178                 __field(int, wcount)
 179                 __field(int, rcount)
 180                 __field(int, icount)
 181                 __field(dev_t, s_dev)
 182                 __field(fl_owner_t, fl_owner)
 183                 __field(unsigned int, fl_flags)
 184                 __field(unsigned char, fl_type)
 185         ),
 186
 187         TP_fast_assign(
 188                 __entry->s_dev = inode->i_sb->s_dev;
 189                 __entry->i_ino = inode->i_ino;
 190                 __entry->wcount = atomic_read(&inode->i_writecount);
 191                 __entry->rcount = atomic_read(&inode->i_readcount);
 192                 __entry->icount = atomic_read(&inode->i_count);
 193                 __entry->fl_owner = fl->fl_owner;
 194                 __entry->fl_flags = fl->fl_flags;
 195                 __entry->fl_type = fl->fl_type;
 196         ),
 197
 198         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",
 199                 MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
 200                 __entry->i_ino, __entry->wcount, __entry->rcount,
 201                 __entry->icount, __entry->fl_owner,
 202                 show_fl_flags(__entry->fl_flags),
 203                 show_fl_type(__entry->fl_type))
 204 );
 205
 206 TRACE_EVENT(leases_conflict,
 207         TP_PROTO(bool conflict, struct file_lock *lease, struct file_lock *breaker),
 208
 209         TP_ARGS(conflict, lease, breaker),
 210
 211         TP_STRUCT__entry(
 212                 __field(void *, lease)
 213                 __field(void *, breaker)
 214                 __field(unsigned int, l_fl_flags)
 215                 __field(unsigned int, b_fl_flags)
 216                 __field(unsigned char, l_fl_type)
 217                 __field(unsigned char, b_fl_type)
 218                 __field(bool, conflict)
 219         ),
 220
 221         TP_fast_assign(
 222                 __entry->lease = lease;
 223                 __entry->l_fl_flags = lease->fl_flags;
 224                 __entry->l_fl_type = lease->fl_type;
 225                 __entry->breaker = breaker;
 226                 __entry->b_fl_flags = breaker->fl_flags;
 227                 __entry->b_fl_type = breaker->fl_type;
 228                 __entry->conflict = conflict;
 229         ),
 230
 231         TP_printk("conflict %d: lease=%p fl_flags=%s fl_type=%s; breaker=%p fl_flags=%s fl_type=%s",
 232                 __entry->conflict,
 233                 __entry->lease,
 234                 show_fl_flags(__entry->l_fl_flags),
 235                 show_fl_type(__entry->l_fl_type),
 236                 __entry->breaker,
 237                 show_fl_flags(__entry->b_fl_flags),
 238                 show_fl_type(__entry->b_fl_type))
 239 );
 240
 241 #endif /* _TRACE_FILELOCK_H */
 242
 243 /* This part must be outside protection */
 244 #include <trace/define_trace.h>