1
0
Fork 0
alistair23-linux/kernel/trace
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
..
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
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
power-traces.c perf: Clean up power events by introducing new, more generic ones 2011-01-04 08:16:54 +01:00
ring_buffer.c ring-buffer: Add stats field for amount read from trace ring buffer 2013-01-30 11:01:53 -05:00
ring_buffer_benchmark.c tracing: Use NUMA allocation for per-cpu ring buffer pages 2011-06-14 22:04:39 -04:00
rpm-traces.c PM / Runtime: Introduce trace points for tracing rpm_* functions 2011-09-27 22:53:27 +02:00
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
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 Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent 2012-03-24 08:19:09 +01:00
trace_event_perf.c perf/core improvements and fixes: 2012-08-21 11:27:00 +02:00
trace_events.c tracing: Use direct field, type and system names 2013-03-15 00:34:47 -04:00
trace_events_filter.c tracing: Separate out trace events from global variables 2013-03-15 00:34:40 -04:00
trace_events_filter_test.h tracing/filter: Add startup tests for events filter 2011-08-19 14:35:59 -04:00
trace_export.c tracing: Do not enable function event with enable 2012-05-10 15:55:43 -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_functions_graph.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 tracing: Allow events to share their print functions 2010-05-14 14:20:32 -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: 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.c ftrace: Fix function tracing recursion self test 2013-01-22 23:37:58 -05:00
trace_selftest_dynamic.c ftrace: Add self-tests for multiple function trace users 2011-05-18 19:24:51 -04:00
trace_stack.c tracing: Remove unneeded checks from the stack tracer 2012-11-19 15:07:13 -05:00
trace_stat.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
trace_stat.h tracing/stat: Add stat_release() callback 2009-07-10 12:14:05 +02:00
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