Lai Jiangshan f7112949f6 ring-buffer: Synchronize resizing buffer with reader lock ... We got a sudden panic when we reduced the size of the ringbuffer. We can reproduce the panic by the following steps: echo 1 > events/sched/enable cat trace_pipe > /dev/null & while ((1)) do echo 12000 > buffer_size_kb echo 512 > buffer_size_kb done (not more than 5 seconds, panic ...) Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> LKML-Reference: <4AF01735.9060409@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2009-11-04 00:04:20 -05:00
..
blktrace.c	Add a tracepoint for block request remapping	2009-10-01 21:19:34 +02:00
ftrace.c	tracing: Update *ppos instead of filp->f_pos	2009-10-24 11:07:49 +02:00
Kconfig	trivial: Fix duplicated word "options" in comment	2009-09-21 15:14:58 +02:00
kmemtrace.c	kmemtrace: Fix up tracer registration	2009-10-01 11:53:44 +02:00
Makefile	tracing, perf: Convert the power tracer into an event tracer	2009-09-19 11:42:12 +02:00
power-traces.c	tracing, perf: Convert the power tracer into an event tracer	2009-09-19 11:42:12 +02:00
ring_buffer_benchmark.c	ring-buffer: have benchmark test print to trace buffer	2009-06-17 17:01:09 -04:00
ring_buffer.c	ring-buffer: Synchronize resizing buffer with reader lock	2009-11-04 00:04:20 -05:00
trace_boot.c	tracing: add filter event logic to special, mmiotrace and boot tracers	2009-09-12 23:34:04 -04:00
trace_branch.c	tracing: user local buffer variable for trace branch tracer	2009-10-07 21:53:41 -04:00
trace_clock.c	tracing: optimize global_trace_clock cachelines	2009-09-15 12:24:22 -04:00
trace_entries.h	tracing, perf: Convert the power tracer into an event tracer	2009-09-19 11:42:12 +02:00
trace_event_profile.c	tracing: Use free_percpu instead of kfree	2009-10-05 10:57:56 +02:00
trace_events_filter.c	tracing/filters: Fix memory leak when setting a filter	2009-10-13 08:05:17 +02:00
trace_events.c	tracing: Check the return value of trace_get_user()	2009-09-22 10:28:55 +02:00
trace_export.c	tracing: remove some unused macros	2009-09-14 11:43:24 -04:00
trace_functions_graph.c	tracing: switch function prints from %pf to %ps	2009-09-17 15:53:40 -04:00
trace_functions.c	tracing: switch function prints from %pf to %ps	2009-09-17 15:53:40 -04:00
trace_hw_branches.c	tracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c	2009-10-07 21:52:03 -04:00
trace_irqsoff.c	tracing: do not update tracing_max_latency when tracer is stopped	2009-09-12 21:45:17 -04:00
trace_mmiotrace.c	tracing: add filter event logic to special, mmiotrace and boot tracers	2009-09-12 23:34:04 -04:00
trace_nop.c	tracing/ftrace: make nop-tracer use polling wait for events on pipe	2009-03-23 09:22:15 +01:00
trace_output.c	tracing: Fix trace_seq_printf() return value	2009-10-24 11:07:50 +02:00
trace_output.h	tracing: consolidate code between trace_output.c and trace_function_graph.c	2009-09-11 14:24:13 -04:00
trace_printk.c	tracing: Remove markers	2009-09-18 21:22:08 +02:00
trace_sched_switch.c	tracing: pass around ring buffer instead of tracer	2009-09-04 18:59:39 -04:00
trace_sched_wakeup.c	tracing: do not update tracing_max_latency when tracer is stopped	2009-09-12 21:45:17 -04:00
trace_selftest_dynamic.c	ftrace: fix dynamic ftrace selftest	2008-05-23 21:13:23 +02:00
trace_selftest.c	tracing/function-graph-tracer: Move graph event insertion helpers in the graph tracer file	2009-08-06 07:28:06 +02:00
trace_stack.c	sysctl: remove "struct file *" argument of ->proc_handler	2009-09-24 07:21:04 -07:00
trace_stat.c	trace_stat: Fix missing entry in stat file	2009-08-17 11:25:09 +02:00
trace_stat.h	tracing/stat: Add stat_release() callback	2009-07-10 12:14:05 +02:00
trace_syscalls.c	tracing/syscalls: Use long for syscall ret format and field definitions	2009-10-06 12:02:34 +02:00
trace_sysprof.c	Merge branch 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-15 10:06:19 -07:00
trace_workqueue.c	tracing/workqueues: Add refcnt to struct cpu_workqueue_stats	2009-07-10 12:14:07 +02:00
trace.c	tracing: Update *ppos instead of filp->f_pos	2009-10-24 11:07:49 +02:00
trace.h	tracing, perf: Convert the power tracer into an event tracer	2009-09-19 11:42:12 +02:00