[PATCH 14/16] debug_vm_pgtable/hugetlb: Disable hugetlb test on ppc64
From: Aneesh Kumar K.V <hidden>
Date: 2020-08-12 06:35:07
Also in:
linux-mm
Subsystem:
memory management, the rest · Maintainers:
Andrew Morton, Linus Torvalds
The seems to be missing quite a lot of details w.r.t allocating the correct pgtable_t page (huge_pte_alloc()), holding the right lock (huge_pte_lock()) etc. The vma used is also not a hugetlb VMA. ppc64 do have runtime checks within CONFIG_DEBUG_VM for most of these. Hence disable the test on ppc64. Signed-off-by: Aneesh Kumar K.V <redacted> --- mm/debug_vm_pgtable.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 529892b9be2f..3e112d0ba1b2 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c@@ -800,6 +800,7 @@ static void __init hugetlb_basic_tests(unsigned long pfn, pgprot_t prot) #endif /* CONFIG_ARCH_WANT_GENERAL_HUGETLB */ } +#ifndef CONFIG_PPC_BOOK3S_64 static void __init hugetlb_advanced_tests(struct mm_struct *mm, struct vm_area_struct *vma, pte_t *ptep, unsigned long pfn,
@@ -842,6 +843,7 @@ static void __init hugetlb_advanced_tests(struct mm_struct *mm, pte = huge_ptep_get(ptep); WARN_ON(!(huge_pte_write(pte) && huge_pte_dirty(pte))); } +#endif #else /* !CONFIG_HUGETLB_PAGE */ static void __init hugetlb_basic_tests(unsigned long pfn, pgprot_t prot) { } static void __init hugetlb_advanced_tests(struct mm_struct *mm,
@@ -1053,7 +1055,9 @@ static int __init debug_vm_pgtable(void) pud_populate_tests(mm, pudp, saved_pmdp); spin_unlock(ptl); - //hugetlb_advanced_tests(mm, vma, ptep, pte_aligned, vaddr, prot); +#ifndef CONFIG_PPC_BOOK3S_64 + hugetlb_advanced_tests(mm, vma, ptep, pte_aligned, vaddr, prot); +#endif spin_lock(&mm->page_table_lock); p4d_clear_tests(mm, p4dp);
--
2.26.2