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@xxxxxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxx>
Could you please merge this patch?
Thanks
Huang Shijie
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