Re: [PATCH] mm: add restriction when memory_hotplug config enable

[zhong jiang <zhongjiang@huawei.com>]

On 2016/8/2 3:54, Andrew Morton wrote:
> On Mon, 1 Aug 2016 23:00:51 +0800 zhongjiang <zhongjiang@huawei.com> wrote:
>
>> From: zhong jiang <zhongjiang@huawei.com>
>>
>> At present, It is obvious that memory online and offline will fail
>> when KASAN enable,
> huh, I didn't know that.  What's the problem and are there plans to fix it?
   when I  test the memory hotplug function.  The memory online and offline always fails.
   because I forget the turn off  the KASAN config.  I know it is not compatible with hotplug.
   In fact,  but I always forget to do so.  
>>  therefore, it is necessary to add the condition
>> to limit the memory_hotplug when KASAN enable.
>>
>> Signed-off-by: zhong jiang <zhongjiang@huawei.com>
>> ---
>>  mm/Kconfig | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/mm/Kconfig b/mm/Kconfig
>> index 3e2daef..f6dd77e 100644
>> --- a/mm/Kconfig
>> +++ b/mm/Kconfig
>> @@ -187,6 +187,7 @@ config MEMORY_HOTPLUG
>>  	bool "Allow for memory hot-add"
>>  	depends on SPARSEMEM || X86_64_ACPI_NUMA
>>  	depends on ARCH_ENABLE_MEMORY_HOTPLUG
>> +	depends on !KASAN
>>  
>>  config MEMORY_HOTPLUG_SPARSE
>>  	def_bool y
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