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Commit d11797a0 authored by Jeff Layton's avatar Jeff Layton
Browse files

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: default avatarJeff Layton <jeff.layton@primarydata.com>
parent 1f93e4a9

include/trace/events/filelock.h

+35 −3
Original line number Diff line number Diff line
@@ -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 */