[PATCH -v3 6/7] kexec jump: __ftrace_enabled_save/restore

[Ingo Molnar]

* Huang Ying <ying.huang at intel.com> wrote:

> +/* Ftrace disable/restore without lock. Some synchronization mechanism
> + * must be used to prevent ftrace_enabled to be changed between
> + * disable/restore. */

use the proper comment style please:

/*
 *
 */

> +static inline int __ftrace_enabled_save(void)
> +{
> +#ifdef CONFIG_FTRACE
> +	int saved_ftrace_enabled = ftrace_enabled;
> +	ftrace_enabled = 0;
> +	return saved_ftrace_enabled;
> +#else
> +	return 0;
> +#endif
> +}
> +
> +static inline void __ftrace_enabled_restore(int enabled)
> +{
> +#ifdef CONFIG_FTRACE
> +	ftrace_enabled = enabled;
> +#endif
> +}

hm, what is this used for?

also, instead of such an ugly inline, why not create a proper 
kernel/trace/* function for this. That would also give it access to all 
the proper locking mechanisms - instead of relying on some extral 
mechanism.

	Ingo