Re: [Xen-devel] [PATCH RFC] xen: make it possible to disable XEN_TMEM
From: Vitaly Kuznetsov
Date: Mon Oct 03 2016 - 11:18:24 EST
Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> writes:
> On Mon, Oct 03, 2016 at 04:02:48PM +0200, Vitaly Kuznetsov wrote:
>> XEN_TMEM config option has no prompt and it is enabled as module by
>> default if CLEANCACHE or FRONTSWAP options are set with no way to disable
>> it. The only in-tree user of the tmem interface is xen-selfballoon which
> And if CONFIG_XEN=y .
Yes, of course)
>> can itself be disabled so it makes sense to make it possible to disable
> During boot-time with arguments.
I see, I rather meant we need a way to disable building the module, not
just loading it.
>> XEN_TMEM too. In theory, both these options could be unified under the
>> XEN_SELFBALLOONING but other (out-of-tree) users of the tmem interface
>> may exist and someone may want to keep them supported without enabling
> I think going the route of XEN_SELFBALLOONING may be better.
Ok, if you say so)
>> Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
>> - I don't know much about tmem and its users thus RFC.
>> drivers/xen/Kconfig | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>> diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
>> index f15bb3b7..0ea1df8 100644
>> --- a/drivers/xen/Kconfig
>> +++ b/drivers/xen/Kconfig
>> @@ -166,7 +166,7 @@ config SWIOTLB_XEN
>> select SWIOTLB
>> config XEN_TMEM
>> - tristate
>> + tristate "Transcendent Memory support for Xen"
>> depends on !ARM && !ARM64
>> default m if (CLEANCACHE || FRONTSWAP)
>> Xen-devel mailing list