On 2025/12/14 14:55, [email protected] wrote:
From: Alex Shi<[email protected]> 'pmd_huge_pte' are pgtable variables, but used 'pgtable->lru' instead of pgtable->pt_list in pgtable_trans_huge_deposit/withdraw functions, That's a bit weird. So let's convert the pgtable_t to precise 'struct ptdesc *' for ptdesc->pmd_huge_pte, and mm->pmd_huge_pte, then convert function pgtable_trans_huge_deposit() to use correct ptdesc. This convertion works for most of arch, but failed on s390/sparc/powerpc since they use 'pte_t *' as pgtable_t. Is there any suggestion for these archs? If we could have a solution, we may remove the pgtable_t for other archs.
If s390/sparc/powerpc can't align pgtable_t with others, we have to keep the pgtable_t to bridge different types. But we could take step to change pgtable_t as 'struct ptdesc *' in other archs. That could simplify and clarify related code too, isn't it?
