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f487426104
linux/kernel/trace
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Steven Rostedt (Red Hat) f487426104 tracing: Break out of tracing_wait_pipe() before wait_pipe() is called 
When reading from trace_pipe, if tracing is off but nothing was read
it should block. If something is read and tracing is off, then EOF
is returned. If tracing is on and there's nothing to read, it will block.

But because the check of whether tracing is off and something was read
is done after the block on the pipe, it is hit or miss if the EOF is
returned or not leading to inconsistent behavior.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-04-29 16:07:28 -04:00
..
blktrace.c Most of the changes were largely clean ups, and some documentation. 2014-04-03 10:26:31 -07:00
ftrace.c tracing: Fix documentation of ftrace_set_global_{filter,notrace}() 2014-04-24 13:38:01 -04:00
Kconfig uprobes: Kconfig dependency fix 2014-03-18 16:39:33 -04:00
Makefile tracing: Add basic event trigger framework 2013-12-20 18:40:22 -05:00
power-traces.c
ring_buffer_benchmark.c trace: Replace hardcoding of 19 with MAX_NICE 2014-02-27 12:41:03 +01:00
ring_buffer.c trace, ring-buffer: Fix CPU hotplug callback registration 2014-03-20 13:43:48 +01:00
rpm-traces.c
trace_branch.c tracing: Update event filters for multibuffer 2013-11-05 16:50:20 -05:00
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 perf: Disallow user-space stack dumps for function trace events 2014-03-11 11:57:58 +01:00
trace_events_filter_test.h
trace_events_filter.c tracing: Add and use generic set_trigger_filter() implementation 2013-12-21 22:02:17 -05:00
trace_events_trigger.c tracepoint: Use struct pointer instead of name hash for reg/unreg tracepoints 2014-04-08 20:43:28 -04:00
trace_events.c tracepoint: Use struct pointer instead of name hash for reg/unreg tracepoints 2014-04-08 20:43:28 -04:00
trace_export.c tracing: Fix anonymous unions in struct ftrace_event_call 2014-04-09 20:02:55 -04:00
trace_functions_graph.c tracing: Pass trace_array to set_flag callback 2014-02-20 12:13:07 -05:00
trace_functions.c ftrace: Remove global function list and call function directly 2014-04-21 13:59:25 -04:00
trace_irqsoff.c tracing: Allow irq/preempt tracers to be used by instances 2014-04-21 13:59:29 -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 tracepoint: Use struct pointer instead of name hash for reg/unreg tracepoints 2014-04-08 20:43:28 -04:00
trace_mmiotrace.c tracing: Update event filters for multibuffer 2013-11-05 16:50:20 -05:00
trace_nop.c tracing: Set up infrastructure to allow tracers for instances 2014-02-20 12:13:10 -05:00
trace_output.c tracepoint: Use struct pointer instead of name hash for reg/unreg tracepoints 2014-04-08 20:43:28 -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 __tracepoint_string() to export string pointers 2013-07-26 13:39:44 -04:00
trace_probe.c tracing/uprobes: Add @+file_offset fetch method 2014-01-02 20:57:05 -05:00
trace_probe.h tracing/uprobes: Support ftrace_event_file base multibuffer 2014-02-20 12:30:09 -05:00
trace_sched_switch.c tracing: Update event filters for multibuffer 2013-11-05 16:50:20 -05:00
trace_sched_wakeup.c tracing: Allow wakeup tracers to be used by instances 2014-04-21 13:59:28 -04:00
trace_selftest_dynamic.c
trace_selftest.c tracing: Add static to local functions 2014-04-21 14:00:46 -04:00
trace_stack.c tracing/stack_trace: Skip 4 instead of 3 when using ftrace_ops_list_func 2014-04-24 13:36:03 -04:00
trace_stat.c trace/trace_stat: use rbtree postorder iteration helper instead of opencoding 2013-11-05 16:01:47 -05:00
trace_stat.h
trace_syscalls.c tracing: Consolidate event trigger code 2014-01-09 21:20:07 -05:00
trace_uprobe.c tracing/uprobes: Fix uprobe_cpu_buffer memory leak 2014-04-17 10:44:42 -04:00
trace.c tracing: Break out of tracing_wait_pipe() before wait_pipe() is called 2014-04-29 16:07:28 -04:00
trace.h tracing/stack_trace: Skip 4 instead of 3 when using ftrace_ops_list_func 2014-04-24 13:36:03 -04:00