include/trace/events/filelock.h

   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
  37 TRACE_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
  61 DECLARE_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
 102 DEFINE_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
 106 DEFINE_EVENT(filelock_lock, fcntl_setlk,
 107                 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
 108                 TP_ARGS(inode, fl, ret));
 109
 110 DEFINE_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
 114 DECLARE_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
 152 DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
 153                 TP_ARGS(inode, fl));
 154
 155 DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lock *fl),
 156                 TP_ARGS(inode, fl));
 157
 158 DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
 159                 TP_ARGS(inode, fl));
 160
 161 DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
 162                 TP_ARGS(inode, fl));
 163
 164 DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lock *fl),
 165                 TP_ARGS(inode, fl));
 166
 167 TRACE_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>