diff options
Diffstat (limited to 'arch/arm64/mm/dump.c')
-rw-r--r-- | arch/arm64/mm/dump.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c index bbc5a29ecaaf..612965375473 100644 --- a/arch/arm64/mm/dump.c +++ b/arch/arm64/mm/dump.c @@ -249,10 +249,12 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start) for (i = 0; i < PTRS_PER_PMD; i++, pmd++) { addr = start + i * PMD_SIZE; - if (pmd_none(*pmd) || pmd_sect(*pmd) || pmd_bad(*pmd)) + if (pmd_none(*pmd) || pmd_sect(*pmd)) { note_page(st, addr, 3, pmd_val(*pmd)); - else + } else { + BUG_ON(pmd_bad(*pmd)); walk_pte(st, pmd, addr); + } } } @@ -264,10 +266,12 @@ static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start) for (i = 0; i < PTRS_PER_PUD; i++, pud++) { addr = start + i * PUD_SIZE; - if (pud_none(*pud) || pud_sect(*pud) || pud_bad(*pud)) + if (pud_none(*pud) || pud_sect(*pud)) { note_page(st, addr, 2, pud_val(*pud)); - else + } else { + BUG_ON(pud_bad(*pud)); walk_pmd(st, pud, addr); + } } } @@ -279,10 +283,12 @@ static void walk_pgd(struct pg_state *st, struct mm_struct *mm, unsigned long st for (i = 0; i < PTRS_PER_PGD; i++, pgd++) { addr = start + i * PGDIR_SIZE; - if (pgd_none(*pgd) || pgd_bad(*pgd)) + if (pgd_none(*pgd)) { note_page(st, addr, 1, pgd_val(*pgd)); - else + } else { + BUG_ON(pgd_bad(*pgd)); walk_pud(st, pgd, addr); + } } } |