Re: [PATCH 2/11] x86: convert to generic helpers for IPI function calls

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Apr 22, 2008 at 09:57:28AM +0200, Jens Axboe wrote:
> This converts x86 and x86-64 to use the new helpers for
> smp_call_function() and friends, and adds support for
> smp_call_function_single().
> 
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 87a693c..aab97e3 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -156,6 +156,11 @@ config GENERIC_PENDING_IRQ
>  	depends on GENERIC_HARDIRQS && SMP
>  	default y
>  
> +config GENERIC_SMP_HELPERS
> +	bool
> +	depends on SMP
> +	default y
> +

Hi Jens.

[Not x86 specific - it was the first patch
touching a Kconfig file]

Could we define a single config variable
in for example kernel/Kconfig(*)
like this:

config HAVE_GENERIC_SMP_HELPERS
	def_bool n

And then the archs that uses the generic SMP helpers just
do a simple:

 config X86
+	select HAVE_GENERIC_SMP_HELPERS


This is the recommended method today and is documented
in Documentation/kbuild/kconfig-language.txt if
you need a bit more intro.

(*) I know we do not have kernel/Kconfig today.
    But maybe this is a good time to add it and
    source it from arch/Kconfig

	Sam
--
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Kernel]     [Kernel Newbies]     [x86 Platform Driver]     [Netdev]     [Linux Wireless]     [Netfilter]     [Bugtraq]     [Linux Filesystems]     [Yosemite Discussion]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]

  Powered by Linux