root/include/trace/events/filelock.h

/*
 * Events for filesystem locks
 *
 * Copyright 2013 Jeff Layton <jlayton@poochiereds.net>
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM filelock

#if !defined(_TRACE_FILELOCK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_FILELOCK_H

#include <linux/tracepoint.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/kdev_t.h>

#define show_fl_flags(val)                                              \
        __print_flags(val, "|",                                         \
                { FL_POSIX,             "FL_POSIX" },                   \
                { FL_FLOCK,             "FL_FLOCK" },                   \
                { FL_DELEG,             "FL_DELEG" },                   \
                { FL_ACCESS,            "FL_ACCESS" },                  \
                { FL_EXISTS,            "FL_EXISTS" },                  \
                { FL_LEASE,             "FL_LEASE" },                   \
                { FL_CLOSE,             "FL_CLOSE" },                   \
                { FL_SLEEP,             "FL_SLEEP" },                   \
                { FL_DOWNGRADE_PENDING, "FL_DOWNGRADE_PENDING" },       \
                { FL_UNLOCK_PENDING,    "FL_UNLOCK_PENDING" },          \
                { FL_OFDLCK,            "FL_OFDLCK" })

#define show_fl_type(val)                               \
        __print_symbolic(val,                           \
                        { F_RDLCK, "F_RDLCK" },         \
                        { F_WRLCK, "F_WRLCK" },         \
                        { F_UNLCK, "F_UNLCK" })

DECLARE_EVENT_CLASS(filelock_lease,

        TP_PROTO(struct inode *inode, struct file_lock *fl),

        TP_ARGS(inode, fl),

        TP_STRUCT__entry(
                __field(struct file_lock *, fl)
                __field(unsigned long, i_ino)
                __field(dev_t, s_dev)
                __field(struct file_lock *, fl_next)
                __field(fl_owner_t, fl_owner)
                __field(unsigned int, fl_flags)
                __field(unsigned char, fl_type)
                __field(unsigned long, fl_break_time)
                __field(unsigned long, fl_downgrade_time)
        ),

        TP_fast_assign(
                __entry->fl = fl ? fl : NULL;
                __entry->s_dev = inode->i_sb->s_dev;
                __entry->i_ino = inode->i_ino;
                __entry->fl_next = fl ? fl->fl_next : NULL;
                __entry->fl_owner = fl ? fl->fl_owner : NULL;
                __entry->fl_flags = fl ? fl->fl_flags : 0;
                __entry->fl_type = fl ? fl->fl_type : 0;
                __entry->fl_break_time = fl ? fl->fl_break_time : 0;
                __entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
        ),

        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",
                __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                __entry->i_ino, __entry->fl_next, __entry->fl_owner,
                show_fl_flags(__entry->fl_flags),
                show_fl_type(__entry->fl_type),
                __entry->fl_break_time, __entry->fl_downgrade_time)
);

DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
                TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lock *fl),
                TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
                TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, generic_add_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
                TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
                TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lock *fl),
                TP_ARGS(inode, fl));

#endif /* _TRACE_FILELOCK_H */

/* This part must be outside protection */
#include <trace/define_trace.h>