Hi, Bibo,
Just declare kernel_pte_init() in header file. Since this series is a
bugfix, we should merge it as soon as possible. The refactoring patch
can be sent after this series.
Huacai
On Thu, Oct 10, 2024 at 11:50 AM Bibo Mao <maobibo@xxxxxxxxxxx> wrote:
>
> Like pmd_init(), a weak function kernel_pte_init() is added and it
> is only effective on LoongArch system. When pte table is created for
> vmemmap kernel space, function kernel_pte_init() is called here.
>
> It has no any effective on other architectures.
>
> Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx>
> ---
> mm/sparse-vmemmap.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
> index edcc7a6b0f6f..c0388b2e959d 100644
> --- a/mm/sparse-vmemmap.c
> +++ b/mm/sparse-vmemmap.c
> @@ -184,6 +184,10 @@ static void * __meminit vmemmap_alloc_block_zero(unsigned long size, int node)
> return p;
> }
>
> +void __weak __meminit kernel_pte_init(void *addr)
> +{
> +}
> +
> pmd_t * __meminit vmemmap_pmd_populate(pud_t *pud, unsigned long addr, int node)
> {
> pmd_t *pmd = pmd_offset(pud, addr);
> @@ -191,6 +195,7 @@ pmd_t * __meminit vmemmap_pmd_populate(pud_t *pud, unsigned long addr, int node)
> void *p = vmemmap_alloc_block_zero(PAGE_SIZE, node);
> if (!p)
> return NULL;
> + kernel_pte_init(p);
> pmd_populate_kernel(&init_mm, pmd, p);
> }
> return pmd;
> --
> 2.39.3
>
