[PATCH] crash_core: export vmemmap when CONFIG_SPARSEMEM_VMEMMAP is enabled

[Shijie Huang]

Hi Andrew,

在 2023/12/21 12:12, Baoquan He 写道:
> On 11/27/23 at 10:07am, Huang Shijie wrote:
>> In memory_model.h, if CONFIG_SPARSEMEM_VMEMMAP is configed,
>> kernel will use vmemmap to do the __pfn_to_page/page_to_pfn,
>> and kernel will not use the "classic sparse" to do the
>> __pfn_to_page/page_to_pfn.
>>
>> So export the vmemmap when CONFIG_SPARSEMEM_VMEMMAP is configed.
>> This makes the user applications (crash, etc) get faster
>> pfn_to_page/page_to_pfn operations too.
>>
>> Signed-off-by: Huang Shijie <shijie at os.amperecomputing.com>
>> ---
>>   kernel/crash_core.c | 3 +++
>>   1 file changed, 3 insertions(+)
> Ack this one as it's needed by crash utility patches.
>
> Acked-by: Baoquan He <bhe at redhat.com>

Could you please merge this patch?


Thanks

Huang Shijie