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Frederic Weisbecker ac99c58c9e tracing/syscalls: fix missing release of tracing ... Impact: fix 'stuck' syscall tracer The syscall tracer uses a refcounter to enable several users simultaneously. But the refcounter did not behave correctly and always restored its value to 0 after calling start_syscall_tracing(). Therefore, stop_syscall_tracing() couldn't release correctly the tasks from tracing. Also the tracer forgot to reset the buffer when it is released. Drop the pointless refcount decrement on start_syscall_tracing() and reset the buffer when we release the tracer. This fixes two reported issue: - when we switch from syscall tracer to another tracer, syscall tracing continued. - incorrect use of the refcount. Reported-by: Andrew Morton <akpm@linux-foundation.org> Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1237151439-6755-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		16 years ago
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Kconfig	tracing/ftrace: syscall tracing infrastructure, basics	16 years ago
Makefile	tracing/ftrace: syscall tracing infrastructure, basics	16 years ago
blktrace.c	Merge branch 'tip/tracing/ftrace' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace	16 years ago
events.c	tracing: use generic __stringify	16 years ago
ftrace.c	ftrace: remove struct list_head from struct dyn_ftrace	16 years ago
kmemtrace.c	…
ring_buffer.c	ring-buffer: document reader page design	16 years ago
trace.c	tracing: move binary buffers into per cpu directory	16 years ago
trace.h	Merge branches 'tracing/ftrace', 'tracing/syscalls' and 'linus' into tracing/core	16 years ago
trace_boot.c	…
trace_branch.c	tracing: remove funky whitespace in the trace code	16 years ago
trace_clock.c	trace_clock: fix preemption bug	16 years ago
trace_event_types.h	tracing: make bprint event use the proper event id	16 years ago
trace_events.c	tracing: have event_trace_printk use static tracer	16 years ago
trace_events_stage_1.h	tracing: update comments to match event code macros	16 years ago
trace_events_stage_2.h	tracing: show event name in trace for TRACE_EVENT created events	16 years ago
trace_events_stage_3.h	tracing: remove funky whitespace in the trace code	16 years ago
trace_export.c	tracing: remove funky whitespace in the trace code	16 years ago
trace_functions.c	…
trace_functions_graph.c	tracing/core: bring back raw trace_printk for dynamic formats strings	16 years ago
trace_hw_branches.c	…
trace_irqsoff.c	…
trace_mmiotrace.c	tracing/core: bring back raw trace_printk for dynamic formats strings	16 years ago
trace_nop.c	…
trace_output.c	tracing/core: bring back raw trace_printk for dynamic formats strings	16 years ago
trace_output.h	tracing/core: drop the old trace_printk() implementation in favour of trace_bprintk()	16 years ago
trace_power.c	…
trace_printk.c	tracing: export trace formats to user space	16 years ago
trace_sched_switch.c	…
trace_sched_wakeup.c	…
trace_selftest.c	tracing: use generic __stringify	16 years ago
trace_selftest_dynamic.c	…
trace_stack.c	tracing: left align location header in stack_trace	16 years ago
trace_stat.c	…
trace_stat.h	…
trace_syscalls.c	tracing/syscalls: fix missing release of tracing	16 years ago
trace_sysprof.c	…
trace_workqueue.c	tracing: Don't use tracing_record_cmdline() in workqueue tracer fix	16 years ago