Li Zefan e1c7e2a6e6 tracing/events: Don't increment @pos in s_start() ... While testing syscall tracepoints posted by Jason, I found 3 entries were missing when reading available_events. The output size of available_events is < 4 pages, which means we lost 1 entry per page. The cause is, it's wrong to increment @pos in s_start(). Actually there's another bug here -- reading avaiable_events/set_events can race with module unload: # cat available_events | s_start() | s_stop() | | # rmmod foo.ko s_start() | call = list_entry(m->private) | @call might be freed and accessing it will lead to crash. Reviewed-by: Liming Wang <liming.wang@windriver.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4A4186DD.6090405@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2009-06-24 11:02:49 +02:00
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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	tracing/urgent: warn in case of ftrace_start_up inbalance	2009-06-20 06:52:21 +02:00
Kconfig	Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-20 10:56:46 -07:00
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 print to trace buffer	2009-06-17 17:01:09 -04:00
ring_buffer.c	Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-20 10:56:46 -07:00
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/events: Don't increment @pos in s_start()	2009-06-24 11:02:49 +02:00
trace_export.c	tracing/filters: distinguish between signed and unsigned fields	2009-04-29 14:06:03 +02:00
trace_functions_graph.c	function-graph: add stack frame test	2009-06-18 18:40:18 -04:00
trace_functions.c	tracing/urgent: fix unbalanced ftrace_start_up	2009-06-20 06:28:46 +02:00
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	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	trace_workqueue: remove blank line between each cpu	2009-06-02 01:14:26 +02:00
trace.c	Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-20 10:56:46 -07:00
trace.h	Merge branch 'tracing/hw-branch-tracing' into tracing/core	2009-05-07 13:36:22 +02:00