@@ -531,7 +531,7 @@ static void __init pgd_populate_tests(struct mm_struct *mm, pgd_t *pgdp,
static void __init pte_clear_tests(struct mm_struct *mm, pte_t *ptep,
unsigned long vaddr)
{
- pte_t pte = ptep_get(ptep);
+ pte_t pte = ptep_get_and_clear(mm, vaddr, ptep);
pr_debug("Validating PTE clear\n");
pte = __pte(pte_val(pte) | RANDOM_ORVALUE);
@@ -929,7 +929,7 @@ static int __init debug_vm_pgtable(void)
p4d_t *p4dp, *saved_p4dp;
pud_t *pudp, *saved_pudp;
pmd_t *pmdp, *saved_pmdp, pmd;
- pte_t *ptep;
+ pte_t *ptep, pte;
pgtable_t saved_ptep;
pgprot_t prot, protnone;
phys_addr_t paddr;
@@ -1034,6 +1034,8 @@ static int __init debug_vm_pgtable(void)
*/
ptep = pte_alloc_map_lock(mm, pmdp, vaddr, &ptl);
+ pte = pfn_pte(pte_aligned, prot);
+ set_pte_at(mm, vaddr, ptep, pte);
pte_clear_tests(mm, ptep, vaddr);
pte_advanced_tests(mm, vma, ptep, pte_aligned, vaddr, prot);
pte_unmap_unlock(ptep, ptl);
pte_clear_tests operate on an existing pte entry. Make sure that is not a none pte entry. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> --- mm/debug_vm_pgtable.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)