On Tue, 27 Aug 2013 14:40:13 -0500
Tom Zanussi <tom.zanu...@linux.intel.com> wrote:
return;
> - if (!test_bit(syscall_nr, tr->enabled_enter_syscalls))
> +
> + /* Here we're inside the tp handler's rcu_read_lock (__DO_TRACE()) */
> + ftrace_file = rcu_dereference_raw(tr->enter_syscall_files[syscall_nr]);
What's the reason for using rcu_dereference_raw() and not normal
rcu_dereference?
-- Steve
> + if (!ftrace_file)
> + return;
> +
> + if (test_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &ftrace_file->flags))
> return;
>
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