Frederic Weisbecker
fe8e5b5a60
tracing: Check total refcount before releasing bufs in profile_enable failure
...
When we call the profile_enable() callback of an event, we release the
shared perf event tracing buffers unconditionnaly in the failure path.
This is wrong because there may be other users of these. Then check the
total refcount before doing this.
Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
2009-10-05 10:57:41 +02:00
..
blktrace.c
Merge commit 'v2.6.31-rc9' into tracing/core
2009-09-06 06:11:42 +02:00
ftrace.c
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-09-26 10:13:54 -07:00
Kconfig
trivial: Fix duplicated word "options" in comment
2009-09-21 15:14:58 +02:00
kmemtrace.c
tracing: remove users of tracing_reset
2009-09-04 12:12:39 -04:00
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.c
includecheck fix: kernel/trace, ring_buffer.c
2009-09-20 16:58:56 +05:30
ring_buffer_benchmark.c
trace.c
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-09-26 10:13:54 -07:00
trace.h
tracing, perf: Convert the power tracer into an event tracer
2009-09-19 11:42:12 +02:00
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
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: Check total refcount before releasing bufs in profile_enable failure
2009-10-05 10:57:41 +02:00
trace_events.c
tracing: Check the return value of trace_get_user()
2009-09-22 10:28:55 +02:00
trace_events_filter.c
tracing: move PRED macros to trace_events_filter.c
2009-09-09 23:54:11 -04:00
trace_export.c
tracing: remove some unused macros
2009-09-14 11:43:24 -04:00
trace_functions.c
tracing: switch function prints from %pf to %ps
2009-09-17 15:53:40 -04:00
trace_functions_graph.c
tracing: switch function prints from %pf to %ps
2009-09-17 15:53:40 -04:00
trace_hw_branches.c
trivial: remove unnecessary semicolons
2009-09-21 15:14:58 +02:00
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
trace_output.c
tracing: consolidate code between trace_output.c and trace_function_graph.c
2009-09-11 14:24:13 -04:00
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.c
tracing/function-graph-tracer: Move graph event insertion helpers in the graph tracer file
2009-08-06 07:28:06 +02:00
trace_selftest_dynamic.c
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
Merge branch 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-09-21 09:15:07 -07:00
trace_sysprof.c
trace_workqueue.c
tracing/workqueues: Add refcnt to struct cpu_workqueue_stats
2009-07-10 12:14:07 +02:00