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59338f754a
linux/kernel/trace
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Steven Rostedt (Red Hat) 59338f754a ftrace: Fix a slight race in modifying what function callback gets traced 
There's a slight race when going from a list function to a non list
function. That is, when only one callback is registered to the function
tracer, it gets called directly by the mcount trampoline. But if this
function has filters, it may be called by the wrong functions.

As the list ops callback that handles multiple callbacks that are
registered to ftrace, it also handles what functions they call. While
the transaction is taking place, use the list function always, and
after all the updates are finished (only the functions that should be
traced are being traced), then we can update the trampoline to call
the function directly.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-09-03 19:36:26 -04:00
..
blktrace.c Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block 2013-05-08 11:51:05 -07:00
ftrace.c ftrace: Fix a slight race in modifying what function callback gets traced 2013-09-03 19:36:26 -04:00
Kconfig ring-buffer: Select IRQ_WORK 2013-05-03 19:24:17 -04:00
Makefile trace: Stop compiling in trace_clock unconditionally 2012-09-13 22:52:08 -04:00
power-traces.c PM / tracing: remove deprecated power trace API 2013-01-26 00:39:12 +01:00
ring_buffer_benchmark.c tracing: Use NUMA allocation for per-cpu ring buffer pages 2011-06-14 22:04:39 -04:00
ring_buffer.c tracing: Typo fix on ring buffer comments 2013-07-18 21:31:26 -04:00
rpm-traces.c PM / Runtime: Introduce trace points for tracing rpm_* functions 2011-09-27 22:53:27 +02:00
trace_branch.c tracing: Fix the branch tracer that broke with buffer change 2013-03-15 00:35:54 -04:00
trace_clock.c tracing: Add "uptime" trace clock that uses jiffies 2013-03-15 00:36:09 -04:00
trace_entries.h tracing: Add trace_puts() for even faster trace_printk() tracing 2013-03-15 00:35:55 -04:00
trace_event_perf.c tracing/perf: Move the PERF_MAX_TRACE_SIZE check into perf_trace_buf_prepare() 2013-07-18 21:31:28 -04:00
trace_events_filter_test.h tracing/filter: Add startup tests for events filter 2011-08-19 14:35:59 -04:00
trace_events_filter.c tracing: Change event_filter_read/write to verify i_private != NULL 2013-07-29 22:56:59 -04:00
trace_events.c tracing: Kill the !CONFIG_MODULES code in trace_events.c 2013-08-21 23:28:03 -04:00
trace_export.c tracing: Fix some section mismatch warnings 2013-03-15 00:34:54 -04:00
trace_functions_graph.c tracing: Add ref_data to function and fgraph tracer structs 2013-07-18 21:31:31 -04:00
trace_functions.c tracing: Add ref_data to function and fgraph tracer structs 2013-07-18 21:31:31 -04:00
trace_irqsoff.c tracing: Use flag buffer_disabled for irqsoff tracer 2013-07-01 20:34:28 -04:00
trace_kdb.c tracing: Consolidate max_tr into main trace_array structure 2013-03-15 00:35:40 -04:00
trace_kprobe.c tracing/kprobes: Fail to unregister if probe event files are in use 2013-07-31 22:25:46 -04:00
trace_mmiotrace.c tracing: Use trace_seq_puts()/trace_seq_putc() where possible 2013-07-18 21:30:36 -04:00
trace_nop.c
trace_output.c tracing: Use trace_seq_puts()/trace_seq_putc() where possible 2013-07-18 21:30:36 -04:00
trace_output.h tracing: Rename trace_event_mutex to trace_event_sem 2013-03-15 13:22:10 -04:00
trace_printk.c tracing: Add percpu buffers for trace_printk() 2012-04-23 21:15:55 -04:00
trace_probe.c tracing: Replace strict_strto* with kstrto* 2012-10-31 16:45:23 -04:00
trace_probe.h uprobes/tracing: Introduce is_trace_uprobe_enabled() 2013-02-08 18:24:30 +01:00
trace_sched_switch.c tracing: Consolidate max_tr into main trace_array structure 2013-03-15 00:35:40 -04:00
trace_sched_wakeup.c tracing: Add function-trace option to disable function tracing of latency tracers 2013-03-15 00:36:08 -04:00
trace_selftest_dynamic.c ftrace: Add self-tests for multiple function trace users 2011-05-18 19:24:51 -04:00
trace_selftest.c ftrace: Do not run selftest if command line parameter is set 2013-07-01 20:57:15 -04:00
trace_stack.c Tracing updates for Linux 3.10 2013-04-29 13:55:38 -07:00
trace_stat.c tracing: Check return value of tracing_init_dentry() 2013-04-12 23:02:32 -04:00
trace_stat.h
trace_syscalls.c tracing/syscalls: Annotate raw_init function with __init 2013-08-21 22:24:52 -04:00
trace_uprobe.c tracing/uprobes: Fail to unregister if probe event files are in use 2013-08-01 18:25:50 -04:00
trace.c tracing: Make tracing_cpumask available for all instances 2013-08-22 12:45:24 -04:00
trace.h tracing: Make tracing_cpumask available for all instances 2013-08-22 12:45:24 -04:00