Re: [patch 13/18] extable: Adjust system_state checks

[Steven Rostedt]

On Sun, 14 May 2017 20:27:29 +0200
Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:

> To enable smp_processor_id() and might_sleep() debug checks earlier, it's
> required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.
> 
> Adjust the system_state check in core_kernel_text() to handle the extra
> states, i.e. to cover init text up to the point where the system switches
> to state RUNNING.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

-- Steve


> ---
>  kernel/extable.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/kernel/extable.c
> +++ b/kernel/extable.c
> @@ -75,7 +75,7 @@ int core_kernel_text(unsigned long addr)
>  	    addr < (unsigned long)_etext)
>  		return 1;
>  
> -	if (system_state == SYSTEM_BOOTING &&
> +	if (system_state < SYSTEM_RUNNING &&
>  	    init_kernel_text(addr))
>  		return 1;
>  	return 0;
>