Li Zefan 00e95830a4 tracing/filters: fix race between filter setting and module unload ... Module unload is protected by event_mutex, while setting filter is protected by filter_mutex. This leads to the race: echo 'bar == 0 || bar == 10' \ | > sample/filter | | insmod sample.ko add_pred("bar == 0") | -> n_preds == 1 | add_pred("bar == 100") | -> n_preds == 2 | | rmmod sample.ko | insmod sample.ko add_pred("&&") | -> n_preds == 1 (should be 3) | Now event->filter->preds is corrupted. An then when filter_match_preds() is called, the WARN_ON() in it will be triggered. To avoid the race, we remove filter_mutex, and replace it with event_mutex. [ Impact: prevent corruption of filters by module removing and loading ] Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4A375A4D.6000205@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2009-06-16 16:25:37 -04:00
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blktrace.c	Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block	2009-06-11 11:10:35 -07:00
ftrace.c	Merge branch 'tracing-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-10 19:58:10 -07:00
Kconfig	tracing: combine the default tracers into one config	2009-06-01 23:23:55 -04:00
kmemtrace.c	cpumask: use new operators in kernel/trace	2009-06-15 11:36:42 -04:00
Makefile	tracing/events: convert block trace points to TRACE_EVENT()	2009-06-09 12:34:23 -04:00
ring_buffer_benchmark.c	ring-buffer: have benchmark test handle discarded events	2009-06-16 13:48:52 -04:00
ring_buffer.c	ring-buffer: use commit counters for commit pointer accounting	2009-06-16 16:25:33 -04:00
trace_boot.c	tracing: use macros to denote usec and nsec per second	2009-04-07 14:43:06 +02:00
trace_branch.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
trace_clock.c	tracing: fix four sparse warnings	2009-03-22 18:16:54 +01:00
trace_event_profile.c	tracing/events: fix concurrent access to ftrace_events list	2009-05-06 10:38:19 +02:00
trace_event_types.h	tracing/filters: distinguish between signed and unsigned fields	2009-04-29 14:06:03 +02:00
trace_events_filter.c	tracing/filters: fix race between filter setting and module unload	2009-06-16 16:25:37 -04:00
trace_events.c	tracing: add protection around module events unload	2009-06-09 17:29:07 -04:00
trace_export.c	tracing/filters: distinguish between signed and unsigned fields	2009-04-29 14:06:03 +02:00
trace_functions_graph.c	Merge branch 'tracing-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-10 19:58:10 -07:00
trace_functions.c	tracing/core: use appropriate waiting on trace_pipe	2009-02-18 01:40:20 +01:00
trace_hw_branches.c	Merge branch 'tracing/hw-branch-tracing' into tracing/core	2009-05-07 13:36:22 +02:00
trace_irqsoff.c	tracing: have latency tracers set the latency format	2009-03-04 22:15:30 -05:00
trace_mmiotrace.c	tracing: use macros to denote usec and nsec per second	2009-04-07 14:43:06 +02:00
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: add protection around module events unload	2009-06-09 17:29:07 -04:00
trace_output.h	tracing: add protection around module events unload	2009-06-09 17:29:07 -04:00
trace_power.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
trace_printk.c	tracing/ftrace: factorize the tracing files creation	2009-04-07 14:43:07 +02:00
trace_sched_switch.c	tracing/events: move trace point headers into include/trace/events	2009-04-14 22:05:43 -04:00
trace_sched_wakeup.c	tracing/wakeup: move access to wakeup_cpu into spinlock	2009-04-23 23:01:36 -04:00
trace_selftest_dynamic.c	ftrace: fix dynamic ftrace selftest	2008-05-23 21:13:23 +02:00
trace_selftest.c	x86, hw-branch-tracer: allocate selftest iterator on heap	2009-04-07 13:36:21 +02:00
trace_stack.c	tracing/trace_stack: fix the number of entries in the header	2009-06-03 10:24:44 -04:00
trace_stat.c	tracing/stat: remove unappropriate safe walk on list	2009-06-02 01:18:33 +02:00
trace_stat.h	tracing: add handler to trace_stat	2009-03-24 23:22:58 -04:00
trace_syscalls.c	tracing/syscalls: use a dedicated file header	2009-04-09 05:43:32 +02:00
trace_sysprof.c	tracing/ftrace: factorize the tracing files creation	2009-04-07 14:43:07 +02:00
trace_workqueue.c	trace_workqueue: remove blank line between each cpu	2009-06-02 01:14:26 +02:00
trace.c	tracing: replace a GFP_ATOMIC with GFP_KERNEL allocation	2009-06-15 11:37:14 -04:00
trace.h	Merge branch 'tracing/hw-branch-tracing' into tracing/core	2009-05-07 13:36:22 +02:00