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locks: change tracepoint for generic_add_lease 

Add some more helpful info to make it easier to determine why a lease
wasn't granted.

Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
This commit is contained in:
Jeff Layton 2015-09-21 07:26:45 -04:00
parent 1f93e4a96c
commit d11797a0a7
1 changed files with 35 additions and 3 deletions
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38
include/trace/events/filelock.h
View File

@ -81,15 +81,47 @@ DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, st
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));
TRACE_EVENT(generic_add_lease,
TP_PROTO(struct inode *inode, struct file_lock *fl),
TP_ARGS(inode, fl),
TP_STRUCT__entry(
__field(unsigned long, i_ino)
__field(int, wcount)
__field(int, dcount)
__field(int, icount)
__field(dev_t, s_dev)
__field(fl_owner_t, fl_owner)
__field(unsigned int, fl_flags)
__field(unsigned char, fl_type)
),
TP_fast_assign(
__entry->s_dev = inode->i_sb->s_dev;
__entry->i_ino = inode->i_ino;
__entry->wcount = atomic_read(&inode->i_writecount);
__entry->dcount = d_count(fl->fl_file->f_path.dentry);
__entry->icount = atomic_read(&inode->i_count);
__entry->fl_owner = fl ? fl->fl_owner : NULL;
__entry->fl_flags = fl ? fl->fl_flags : 0;
__entry->fl_type = fl ? fl->fl_type : 0;
),
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",
MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
__entry->i_ino, __entry->wcount, __entry->dcount,
__entry->icount, __entry->fl_owner,
show_fl_flags(__entry->fl_flags),
show_fl_type(__entry->fl_type))
);
#endif /* _TRACE_FILELOCK_H */
/* This part must be outside protection */