s390/mm: fix dump_pagetables top level page table walking

[linux.git] / arch / s390 / mm / dump_pagetables.c

diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 3b93ba0b5d8d6e03b3289f861c4f244681e2826f..5d67b81c704a49214b500c3fce7af3f728860353 100644 (file)
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -161,9 +161,9 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
        }
 #endif
 
-       for (i = 0; i < PTRS_PER_PMD && addr < max_addr; i++) {
+       pmd = pmd_offset(pud, addr);
+       for (i = 0; i < PTRS_PER_PMD && addr < max_addr; i++, pmd++) {
                st->current_address = addr;
-               pmd = pmd_offset(pud, addr);
                if (!pmd_none(*pmd)) {
                        if (pmd_large(*pmd)) {
                                prot = pmd_val(*pmd) &
@@ -192,9 +192,9 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st,
        }
 #endif
 
-       for (i = 0; i < PTRS_PER_PUD && addr < max_addr; i++) {
+       pud = pud_offset(p4d, addr);
+       for (i = 0; i < PTRS_PER_PUD && addr < max_addr; i++, pud++) {
                st->current_address = addr;
-               pud = pud_offset(p4d, addr);
                if (!pud_none(*pud))
                        if (pud_large(*pud)) {
                                prot = pud_val(*pud) &
@@ -222,9 +222,9 @@ static void walk_p4d_level(struct seq_file *m, struct pg_state *st,
        }
 #endif
 
-       for (i = 0; i < PTRS_PER_P4D && addr < max_addr; i++) {
+       p4d = p4d_offset(pgd, addr);
+       for (i = 0; i < PTRS_PER_P4D && addr < max_addr; i++, p4d++) {
                st->current_address = addr;
-               p4d = p4d_offset(pgd, addr);
                if (!p4d_none(*p4d))
                        walk_pud_level(m, st, p4d, addr);
                else