Steven Rostedt (Red Hat) cf6ab6d914 tracing: Add ref count to tracer for when they are being read by pipe ...

When one of the trace pipe files are being read (by either the trace_pipe
or trace_pipe_raw), do not allow the current_trace to change. By adding
a ref count that is incremented when the pipe files are opened, will
prevent the current_trace from being changed.

This will allow for the removal of the global trace_types_lock from
reading the pipe buffers (which is currently a bottle neck).

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

2014-12-22 15:39:40 -05:00

..

blktrace.c

Merge branch 'for-3.19/core' of git://git.kernel.dk/linux-block

2014-12-13 14:14:23 -08:00

ftrace.c

ftrace, kprobes: Support IPMODIFY flag to find IP modify conflict

2014-11-21 14:42:10 -05:00

Kconfig

tracing: Remove function_trace_stop and HAVE_FUNCTION_TRACE_MCOUNT_TEST

2014-07-18 13:58:12 -04:00

Makefile

tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM

2014-12-13 02:23:30 +01:00

power-traces.c

PM / tracing: remove deprecated power trace API

2013-01-26 00:39:12 +01:00

ring_buffer_benchmark.c

sched, cleanup, treewide: Remove set_current_state(TASK_RUNNING) after schedule()

2014-09-19 12:35:17 +02:00

ring_buffer.c

Merge tag 'trace-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-10 19:58:13 -08:00

rpm-traces.c

…

trace_benchmark.c

tracing: Only calculate stats of tracepoint benchmarks for 2^32 times

2014-06-06 00:41:38 -04:00

trace_benchmark.h

tracing: Add tracepoint benchmark tracepoint

2014-05-29 22:49:54 -04:00

trace_branch.c

tracing: Have branch tracer use trace_handle_return() helper function

2014-11-19 15:25:41 -05:00

trace_clock.c

tracing: Fix wraparound problems in "uptime" trace clock

2014-07-21 09:56:12 -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: Check permission only for parent tracepoint event

2014-07-28 10:01:38 +02:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Allow NOT to filter AND and OR clauses

2014-12-03 10:00:27 -05:00

trace_events_trigger.c

trace: Replace single-character seq_puts with seq_putc

2014-11-14 07:55:55 -05:00

trace_events.c

Merge tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-16 12:53:59 -08:00

trace_export.c

tracing: Fix anonymous unions in struct ftrace_event_call

2014-04-09 20:02:55 -04:00

trace_functions_graph.c

Merge tag 'trace-seq-buf-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-10 20:35:41 -08:00

trace_functions.c

tracing/trivial: Fix typos and make an int into a bool

2014-11-20 10:05:36 -05:00

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: kdb: Fix kernel livelock with empty buffers

2014-11-13 21:27:25 -05:00

trace_kprobe.c

kprobes/tracing: Use trace_seq_has_overflowed() for overflow checks

2014-11-19 15:25:43 -05:00

trace_mmiotrace.c

tracing: Do not check return values of trace_seq_p*() for mmio tracer

2014-11-19 15:25:44 -05:00

trace_nop.c

tracing: Remove mock up poll wait function

2014-04-30 08:40:05 -04:00

trace_output.c

tracing: Add additional marks to signal very large time deltas

2014-12-03 17:10:13 -05:00

trace_output.h

tracing: Add trace_seq_has_overflowed() and trace_handle_return()

2014-11-19 15:25:39 -05:00

trace_printk.c

trace: Replace single-character seq_puts with seq_putc

2014-11-14 07:55:55 -05:00

trace_probe.c

tracing/probes: Do not use return value of trace_seq_printf()

2014-11-19 15:25:44 -05:00

trace_probe.h

kprobes, ftrace: Use NOKPROBE_SYMBOL macro in ftrace

2014-04-24 10:26:39 +02:00

trace_sched_switch.c

tracing: Move tracing_sched_{switch,wakeup}() into wakeup tracer

2014-11-11 12:43:15 -05:00

trace_sched_wakeup.c

tracing: Move tracing_sched_{switch,wakeup}() into wakeup tracer

2014-11-11 12:43:15 -05:00

trace_selftest_dynamic.c

…

trace_selftest.c

Merge tag 'trace-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-10-12 07:28:55 -04:00

trace_seq.c

tracing: Use trace_seq_used() and seq_buf_used() instead of len

2014-11-19 22:01:15 -05:00

trace_stack.c

sched: Add helper for task stack page overrun checking

2014-09-19 12:35:23 +02:00

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

Merge tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-16 12:53:59 -08:00

trace_uprobe.c

tracing: Deletion of an unnecessary check before iput()

2014-11-19 16:28:45 -05:00

trace.c

tracing: Add ref count to tracer for when they are being read by pipe

2014-12-22 15:39:40 -05:00

trace.h

tracing: Add ref count to tracer for when they are being read by pipe

2014-12-22 15:39:40 -05:00