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| author | Steven Rostedt <rostedt@goodmis.org> | 2008-11-03 23:15:56 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-04 10:09:49 +0100 |
| commit | 182e9f5f704ed6b9175142fe8da33c9ce0c52b52 (patch) | |
| tree | 60e72119c74141cfb7b0b9b757b47d719138621f /kernel/trace/trace_stack.c | |
| parent | 8f0a056fcb2f83a069fb5d60c2383304b7456687 (diff) | |
| download | op-kernel-dev-182e9f5f704ed6b9175142fe8da33c9ce0c52b52.zip op-kernel-dev-182e9f5f704ed6b9175142fe8da33c9ce0c52b52.tar.gz | |
ftrace: insert in the ftrace_preempt_disable()/enable() functions
Impact: use new, consolidated APIs in ftrace plugins
This patch replaces the schedule safe preempt disable code with the
ftrace_preempt_disable() and ftrace_preempt_enable() safe functions.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_stack.c')
| -rw-r--r-- | kernel/trace/trace_stack.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index be682b6..d39e8b7 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -107,8 +107,7 @@ stack_trace_call(unsigned long ip, unsigned long parent_ip) if (unlikely(!ftrace_enabled || stack_trace_disabled)) return; - resched = need_resched(); - preempt_disable_notrace(); + resched = ftrace_preempt_disable(); cpu = raw_smp_processor_id(); /* no atomic needed, we only modify this variable by this cpu */ @@ -120,10 +119,7 @@ stack_trace_call(unsigned long ip, unsigned long parent_ip) out: per_cpu(trace_active, cpu)--; /* prevent recursion in schedule */ - if (resched) - preempt_enable_no_resched_notrace(); - else - preempt_enable_notrace(); + ftrace_preempt_enable(resched); } static struct ftrace_ops trace_ops __read_mostly = |
