Messages in this thread Patch in this message | | | From | Sia Jee Heng <> | Subject | [PATCH v2 2/3] RISC-V: mm: Enable huge page support to kernel_page_present() function | Date | Mon, 9 Jan 2023 14:24:06 +0800 |
| |
Currently kernel_page_present() function doesn't support huge page detection causes the function to mistakenly return false to the hibernation core.
Add huge page detection to the function to solve the problem.
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com> Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com> Reviewed-by: Mason Huo <mason.huo@starfivetech.com> --- arch/riscv/mm/pageattr.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/riscv/mm/pageattr.c b/arch/riscv/mm/pageattr.c index 86c56616e5de..73fdec8c0a72 100644 --- a/arch/riscv/mm/pageattr.c +++ b/arch/riscv/mm/pageattr.c @@ -221,14 +221,20 @@ bool kernel_page_present(struct page *page) p4d = p4d_offset(pgd, addr); if (!p4d_present(*p4d)) return false; + if (p4d_leaf(*pud)) + return true; pud = pud_offset(p4d, addr); if (!pud_present(*pud)) return false; + if (pud_leaf(*pud)) + return true; pmd = pmd_offset(pud, addr); if (!pmd_present(*pmd)) return false; + if (pmd_leaf(*pmd)) + return true; pte = pte_offset_kernel(pmd, addr); return pte_present(*pte); -- 2.34.1
| |