Li Zefan 87a342f5db tracing/filters: Support filtering for char * strings ... Usually, char * entries are dangerous in traces because the string can be released whereas a pointer to it can still wait to be read from the ring buffer. But sometimes we can assume it's safe, like in case of RO data (eg: __file__ or __line__, used in bkl trace event). If these RO data are in a module and so is the call to the trace event, then it's safe, because the ring buffer will be flushed once this module get unloaded. To allow char * to be treated as a string: TRACE_EVENT(..., TP_STRUCT__entry( __field_ext(const char *, name, FILTER_PTR_STRING) ... ) ... ); The filtering will not dereference "char *" unless the developer explicitly sets FILTER_PTR_STR in __field_ext. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4A7B9287.90205@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2009-08-26 00:32:07 -04:00
..
blktrace.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
ftrace.c	ftrace: Simplify seqfile code	2009-08-17 11:25:10 +02:00
Kconfig	tracing/fastboot: Document the need of initcall_debug	2009-06-29 10:22:10 +02:00
kmemtrace.c	kmemtrace: Rename some functions	2009-07-10 12:09:04 +02:00
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	Merge branch 'linus' into tracing/core	2009-08-11 14:19:09 +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	ftrace: Fix perf-tracepoint OOPS	2009-08-06 06:26:09 +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: Support filtering for char * strings	2009-08-26 00:32:07 -04:00
trace_events.c	tracing/filters: Add __field_ext() to TRACE_EVENT	2009-08-26 00:32:06 -04:00
trace_export.c	tracing/filters: Add __field_ext() to TRACE_EVENT	2009-08-26 00:32:06 -04:00
trace_functions_graph.c	Merge branch 'linus' into tracing/core	2009-08-11 14:19:09 +02:00
trace_functions.c	Merge branch 'linus' into tracing/core	2009-07-18 12:20:01 +02:00
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: show proper address for trace-printk format	2009-07-23 10:07:17 -04:00
trace_sched_switch.c	tracing: Move sched event insertion helpers in the sched switch tracer file	2009-08-06 07:28:06 +02:00
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	tracing/function-graph-tracer: Move graph event insertion helpers in the graph tracer file	2009-08-06 07:28:06 +02:00
trace_stack.c	trace_stack: Simplify seqfile code	2009-08-17 11:25:09 +02:00
trace_stat.c	trace_stat: Fix missing entry in stat file	2009-08-17 11:25:09 +02:00
trace_stat.h	tracing/stat: Add stat_release() callback	2009-07-10 12:14:05 +02:00
trace_syscalls.c	tracing/filters: Add __field_ext() to TRACE_EVENT	2009-08-26 00:32:06 -04:00
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	tracing/workqueues: Add refcnt to struct cpu_workqueue_stats	2009-07-10 12:14:07 +02:00
trace.c	tracing: Rename set_tracer_flags()'s local variable trace_flags	2009-08-11 20:35:25 +02:00
trace.h	tracing/filters: Add filter_type to struct ftrace_event_field	2009-08-26 00:32:06 -04:00