2006-09-12  Li Guanglei <guanglei@cn.ibm.com>

	* iosyscall.stp: change log_iosyscall_sync() be sync
	with different timing methods.
	* utils.stp: add reset_maxaction() since there are too
	many functions called inside "probe begin".

2006-09-12  Li Guanglei <guanglei@cn.ibm.com>

	From Li Xuepeng <xuepengl@cn.ibm.com>

	* nfsd.stp, nfs_proc.stp, nfs.stp: New trace hooks for
	NFS, including both NFS client and server side activities.
	* register_event.stp: Add the register event calls for NFS
	trace hooks.

2006-08-29  Li Guanglei <guanglei@cn.ibm.com>
	
	From Gui Jian <guijian@cn.ibm.com>

	New tapset to add another two kinds of timing methods,
	i.e, get_cycles() and sched_clock().

	* hookid_defs.stp: add CPUFREQ related definitions add 
	lket_init_time/lket_kill_time to register/unregister 
	cpufreq notifier
	* lket_trace.stp: print timing_method and cpufreq in 
	lket_init_header; use different timing methods in _lket_trace
	* register_event.stp: register HOOKID_SWITCH_CPUFREQ event
	* timestamp.stp: definitions of timing method related 
	functions and variables
	
2006-08-25  Li Guanglei <guanglei@cn.ibm.com>
	
	* syscall.stp: add "probe never" to generate 
	reference to hookid_defs.stp to avoid compiling error
	
2006-08-22  Li Guanglei <guanglei@cn.ibm.com>
	
	* signal.stp, hookid_defs.stp, register_event.stp:
	add signal trace hooks.
	* syscall.stp: eliminates global stap variable of
	HOOKID_SYSCALL_* for faster speed
	
2006-08-09  Josh Stone  <joshua.i.stone@intel.com>

	* pagefault.stp: move pagefault to vm.* namespace

2006-07-14  Li Guanglei <guanglei@cn.ibm.com>
	
	* aio.stp: bugfix to make each aio sub event hook
	runnable standalone.
	
2006-07-11  Li Guanglei <guanglei@cn.ibm.com>
	
	* process.stp, register_event.stp: changes to
	addevent.process to generate adequate info
	of process relationships
	* lket_trace.stp: use current->parent->tgid as the 
	parent process id for ascii tracing
	
2006-06-29  Li Guanglei <guanglei@cn.ibm.com>
	
	* lket_trace.stp: 
	_lket_trace() won't log ppid and tgid any more.
	Using bit-OP to make _lket_trace's format string shorter
	for better performance.
	
2006-06-26  Li Guanglei <guanglei@cn.ibm.com>
	
	* aio.stp: new event hooks for AIO
	* register_events.stp, hookid_defs.stp: changes for aio.stp. 
	* register_events.stp, process.stp: bugfix for ascii tracing
	
2006-06-24  Li Guanglei <guanglei@cn.ibm.com>
	
	* iosyscall.stp, register_events.stp: change the return type from string to int64_t
	for better performance. sub-hooks for each iosyscall.
	* lket_trace.stp: make update_record() work for ascii tracing

2006-06-21  Li Guanglei <guanglei@cn.ibm.com>
	
	* scsi.stp, ioscheduler.stp, register_event.stp: 
	More data items for scsi and ioscheduler event hooks
	* ioscheduler.stp: delete filter_by_pid filter for io scheduler
	event hooks
	
2006-06-15  Li Guanglei <guanglei@cn.ibm.com>
	
	* iosyscall.stp: new event hooks for io related syscalls
	* hookid_defs.stp: add the necessary IDs for iosyscall event hooks
	* register_event.stp: add corresponding event register calls
	of the newly added io syscall event hooks
	
2006-06-09  Li Guanglei <guanglei@cn.ibm.com>
	
	* *.stp: New design of making user able to append extra trace data.
	lket_backtrace() is deleted.
	* register_event.stp: write the metainfo of trace data.
	
2006-06-01  Li Guanglei <guanglei@cn.ibm.com>
	
	* *.stp: make user able to append extra trace data. The
	way of logging backtrace is also changed 
	
2006-05-25  Li Guanglei <guanglei@cn.ibm.com>
	
	* hookid_defs.stp, ioscheduler.stp, lket_trace.stp, netdev.stp,
	pagefault.stp, process.stp, scsi.stp, syscalls.stp, tskdispatch.stp,
	utils.stp: explicitly add type qualifier for different arch to 
	make _stp_vsnprintf get the argument by va_arg correctly.
	
2006-05-18  Li Guanglei <guanglei@cn.ibm.com>
	
	Initial version by Li Guanglei.
	* hookid_defs.stp, ioscheduler.stp, lket_trace.stp, netdev.stp,
	pagefault.stp, process.stp, scsi.stp, syscalls.stp, tskdispatch.stp, utils.stp