Steven Rostedt b627344fef tracing: Fix read blocking on trace_pipe_raw ...

If the ring buffer is empty, a read to trace_pipe_raw wont block.
The tracing code has the infrastructure to wake up waiting readers,
but the trace_pipe_raw doesn't take advantage of that.

When a read is done to trace_pipe_raw without the O_NONBLOCK flag
set, have the read block until there's data in the requested buffer.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2013-03-15 00:34:49 -04:00

..

blktrace.c

tracing: Use this_cpu_ptr per-cpu helper

2013-01-21 13:22:30 -05:00

ftrace.c

tracing: Fix free of probe entry by calling call_rcu_sched()

2013-03-13 17:57:44 -04:00

Kconfig

ftrace: Update the kconfig for DYNAMIC_FTRACE

2013-02-27 21:58:01 -05:00

Makefile

trace: Stop compiling in trace_clock unconditionally

2012-09-13 22:52:08 -04:00

power-traces.c

…

ring_buffer_benchmark.c

…

ring_buffer.c

ring-buffer: Add stats field for amount read from trace ring buffer

2013-01-30 11:01:53 -05:00

rpm-traces.c

…

trace_branch.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_clock.c

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-02-19 17:49:41 -08:00

trace_entries.h

…

trace_event_perf.c

Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

2012-08-21 11:27:00 +02:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Separate out trace events from global variables

2013-03-15 00:34:40 -04:00

trace_events.c

tracing: Use direct field, type and system names

2013-03-15 00:34:47 -04:00

trace_export.c

tracing: Do not enable function event with enable

2012-05-10 15:55:43 -04:00

trace_functions_graph.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_functions.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_irqsoff.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_kdb.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_kprobe.c

tracing: Use irq_work for wake ups and remove *_nowake_*() functions

2012-11-02 10:21:52 -04:00

trace_mmiotrace.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_nop.c

…

trace_output.c

tracing: Format non-nanosec times from tsc clock without a decimal point.

2012-11-13 15:48:40 -05:00

trace_output.h

…

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: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_sched_wakeup.c

tracing: Replace the static global per_cpu arrays with allocated per_cpu

2013-03-15 00:34:43 -04:00

trace_selftest_dynamic.c

…

trace_selftest.c

ftrace: Fix function tracing recursion self test

2013-01-22 23:37:58 -05:00

trace_stack.c

tracing: Remove unneeded checks from the stack tracer

2012-11-19 15:07:13 -05:00

trace_stat.c

…

trace_stat.h

…

trace_syscalls.c

tracing: Make syscall events suitable for multiple buffers

2013-03-15 00:34:44 -04:00

trace_uprobe.c

uprobes/perf: Avoid uprobe_apply() whenever possible

2013-02-08 18:28:08 +01:00

trace.c

tracing: Fix read blocking on trace_pipe_raw

2013-03-15 00:34:49 -04:00

trace.h

tracing: Use direct field, type and system names

2013-03-15 00:34:47 -04:00