Lai Jiangshan 74e7ff8c50 tracing: Fix missing function_graph events when we splice_read from trace_pipe ... About a half events are missing when we splice_read from trace_pipe. They are unexpectedly consumed because we ignore the TRACE_TYPE_NO_CONSUME return value used by the function graph tracer when it needs to consume the events by itself to walk on the ring buffer. The same problem appears with ftrace_dump() Example of an output before this patch: 1) | ktime_get_real() { 1) 2.846 us | read_hpet(); 1) 4.558 us | } 1) 6.195 us | } After this patch: 0) | ktime_get_real() { 0) | getnstimeofday() { 0) 1.960 us | read_hpet(); 0) 3.597 us | } 0) 5.196 us | } The fix also applies on 2.6.30 Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: stable@kernel.org LKML-Reference: <4A6EEC52.90704@cn.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>		2009-07-28 23:17:23 +02:00
..
blktrace.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
ftrace.c	tracing/function-profiler: do not free per cpu variable stat	2009-07-13 11:01:10 +02:00
Kconfig	tracing/fastboot: Document the need of initcall_debug	2009-06-29 10:22:10 +02:00
kmemtrace.c	cpumask: use new operators in kernel/trace	2009-06-15 11:36:42 -04:00
Makefile	tracing/events: convert block trace points to TRACE_EVENT()	2009-06-09 12:34:23 -04:00
ring_buffer_benchmark.c	ring-buffer: have benchmark test print to trace buffer	2009-06-17 17:01:09 -04:00
ring_buffer.c	ring-buffer: Make it generally available	2009-06-25 10:31:30 +02:00
trace_boot.c	tracing: use macros to denote usec and nsec per second	2009-04-07 14:43:06 +02:00
trace_branch.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
trace_clock.c	tracing: fix four sparse warnings	2009-03-22 18:16:54 +01:00
trace_event_profile.c	tracing/events: fix concurrent access to ftrace_events list	2009-05-06 10:38:19 +02:00
trace_event_types.h	trace_export: Repair missed fields	2009-06-26 20:48:40 +02:00
trace_events_filter.c	tracing/filters: fix race between filter setting and module unload	2009-06-16 16:25:37 -04:00
trace_events.c	tracing/events: Don't increment @pos in s_start()	2009-06-24 11:02:49 +02:00
trace_export.c	tracing/filters: distinguish between signed and unsigned fields	2009-04-29 14:06:03 +02:00
trace_functions_graph.c	tracing: Fix invalid function_graph entry	2009-07-28 23:17:23 +02:00
trace_functions.c	tracing/function: Fix the return value of ftrace_trace_onoff_callback()	2009-07-16 23:34:32 -04:00
trace_hw_branches.c	Merge branch 'tracing/hw-branch-tracing' into tracing/core	2009-05-07 13:36:22 +02:00
trace_irqsoff.c	tracing: have latency tracers set the latency format	2009-03-04 22:15:30 -05:00
trace_mmiotrace.c	tracing: use macros to denote usec and nsec per second	2009-04-07 14:43:06 +02:00
trace_nop.c	tracing/ftrace: make nop-tracer use polling wait for events on pipe	2009-03-23 09:22:15 +01:00
trace_output.c	tracing: Fix trace_print_seq()	2009-07-02 08:51:13 +02:00
trace_output.h	tracing: add protection around module events unload	2009-06-09 17:29:07 -04:00
trace_power.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
trace_printk.c	tracing_bprintk: Don't increment @pos in t_start()	2009-06-24 11:02:50 +02:00
trace_sched_switch.c	tracing/events: move trace point headers into include/trace/events	2009-04-14 22:05:43 -04:00
trace_sched_wakeup.c	tracing/wakeup: move access to wakeup_cpu into spinlock	2009-04-23 23:01:36 -04:00
trace_selftest_dynamic.c	ftrace: fix dynamic ftrace selftest	2008-05-23 21:13:23 +02:00
trace_selftest.c	x86, hw-branch-tracer: allocate selftest iterator on heap	2009-04-07 13:36:21 +02:00
trace_stack.c	tracing: Fix stack tracer sysctl handling	2009-06-26 20:48:39 +02:00
trace_stat.c	trace_stat: Don't increment @pos in seq start()	2009-06-24 11:02:51 +02:00
trace_stat.h	tracing: add handler to trace_stat	2009-03-24 23:22:58 -04:00
trace_syscalls.c	tracing/syscalls: use a dedicated file header	2009-04-09 05:43:32 +02:00
trace_sysprof.c	Merge branch 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-15 10:06:19 -07:00
trace_workqueue.c	trace_workqueue: remove blank line between each cpu	2009-06-02 01:14:26 +02:00
trace.c	tracing: Fix missing function_graph events when we splice_read from trace_pipe	2009-07-28 23:17:23 +02:00
trace.h	ring-buffer: Make it generally available	2009-06-25 10:31:30 +02:00