Liu Bo 250bfd3d8e tracing: Fix regression of trace_pipe ...

Commit 0fb9656d "tracing: Make tracing_enabled be equal to tracing_on"
changes the behaviour of trace_pipe, ie. it makes trace_pipe return if
we've read something and tracing is enabled, and this means that we have
to 'cat trace_pipe' again and again while running tests.

IMO the right way is if tracing is enabled, we always block and wait for
ring buffer, or we may lose what we want since ring buffer's size is limited.

Link: http://lkml.kernel.org/r/1358132051-5410-1-git-send-email-bo.li.liu@oracle.com

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2013-01-14 13:13:32 -05:00

..

blktrace.c

simple_open: automatically convert to simple_open()

2012-04-05 15:25:50 -07:00

ftrace.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

Kconfig

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

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

Makefile

trace: Stop compiling in trace_clock unconditionally

2012-09-13 22:52:08 -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_benchmark.c

tracing: Use NUMA allocation for per-cpu ring buffer pages

2011-06-14 22:04:39 -04:00

ring_buffer.c

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

2012-12-11 18:18:58 -08:00

rpm-traces.c

PM / Runtime: Introduce trace points for tracing rpm_* functions

2011-09-27 22:53:27 +02:00

trace_branch.c

tracing: Cache comms only after an event occurred

2012-10-31 16:45:31 -04:00

trace_clock.c

tracing: Add a counter clock for those that do not trust clocks

2011-09-19 11:35:58 -04:00

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_filter_test.h

tracing/filter: Add startup tests for events filter

2011-08-19 14:35:59 -04:00

trace_events_filter.c

tracing: Replace strict_strto* with kstrto*

2012-10-31 16:45:23 -04:00

trace_events.c

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

2012-11-02 10:21:52 -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: Cache comms only after an event occurred

2012-10-31 16:45:31 -04:00

trace_functions.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-12-13 12:00:02 -08:00

trace_irqsoff.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-12-13 12:00:02 -08:00

trace_kdb.c

kdb,ftdump: Remove reference to internal kdb include

2010-10-22 15:34:11 -05:00

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

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

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

tracing: Provide trace events interface for uprobes

2012-05-07 14:30:17 +02:00

trace_sched_switch.c

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

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

trace_sched_wakeup.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-12-13 12:00:02 -08:00

trace_selftest_dynamic.c

ftrace: Add self-tests for multiple function trace users

2011-05-18 19:24:51 -04:00

trace_selftest.c

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

2012-11-02 10:21:52 -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: Cleanup unnecessary function declarations

2012-10-31 16:45:34 -04:00

trace_uprobe.c

trace: use kbasename()

2012-12-17 17:15:17 -08:00

trace.c

tracing: Fix regression of trace_pipe

2013-01-14 13:13:32 -05:00

trace.h

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

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