From: "Steven Rostedt (Red Hat)" As options (flags) may affect instances instead of being global the flag_changed() callbacks need to receive the trace_array descriptor of the instance they will be modifying. Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 2 +- kernel/trace/trace.h | 2 +- kernel/trace/trace_irqsoff.c | 4 +++- kernel/trace/trace_sched_wakeup.c | 4 +++- 4 files changed, 8 insertions(+), 4 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index d7dfc7e..ee8da93 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3393,7 +3393,7 @@ int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled) /* Give the tracer a chance to approve the change */ if (tr->current_trace->flag_changed) - if (tr->current_trace->flag_changed(tr->current_trace, mask, !!enabled)) + if (tr->current_trace->flag_changed(tr, mask, !!enabled)) return -EINVAL; if (enabled) diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 649a23d..36e4473 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -358,7 +358,7 @@ struct tracer { int (*set_flag)(struct trace_array *tr, u32 old_flags, u32 bit, int set); /* Return 0 if OK with change, else return non-zero */ - int (*flag_changed)(struct tracer *tracer, + int (*flag_changed)(struct trace_array *tr, u32 mask, int set); struct tracer *next; struct tracer_flags *flags; diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c index fd99b0c..4bf812f 100644 --- a/kernel/trace/trace_irqsoff.c +++ b/kernel/trace/trace_irqsoff.c @@ -572,8 +572,10 @@ static void irqsoff_function_set(int set) unregister_irqsoff_function(is_graph()); } -static int irqsoff_flag_changed(struct tracer *tracer, u32 mask, int set) +static int irqsoff_flag_changed(struct trace_array *tr, u32 mask, int set) { + struct tracer *tracer = tr->current_trace; + if (mask & TRACE_ITER_FUNCTION) irqsoff_function_set(set); diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c index f0bbdc2..e14da5e 100644 --- a/kernel/trace/trace_sched_wakeup.c +++ b/kernel/trace/trace_sched_wakeup.c @@ -179,8 +179,10 @@ static void wakeup_function_set(int set) unregister_wakeup_function(is_graph()); } -static int wakeup_flag_changed(struct tracer *tracer, u32 mask, int set) +static int wakeup_flag_changed(struct trace_array *tr, u32 mask, int set) { + struct tracer *tracer = tr->current_trace; + if (mask & TRACE_ITER_FUNCTION) wakeup_function_set(set); -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/