diff options
Diffstat (limited to 'mm/kasan')
| -rw-r--r-- | mm/kasan/init.c | 18 | ||||
| -rw-r--r-- | mm/kasan/kasan.h | 4 |
2 files changed, 18 insertions, 4 deletions
diff --git a/mm/kasan/init.c b/mm/kasan/init.c index dcfec277e839..89895f38f722 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -139,6 +139,10 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr, return 0; } +void __weak __meminit pmd_init(void *addr) +{ +} + static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, unsigned long end) { @@ -166,8 +170,9 @@ static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, if (!p) return -ENOMEM; } else { - pud_populate(&init_mm, pud, - early_alloc(PAGE_SIZE, NUMA_NO_NODE)); + p = early_alloc(PAGE_SIZE, NUMA_NO_NODE); + pmd_init(p); + pud_populate(&init_mm, pud, p); } } zero_pmd_populate(pud, addr, next); @@ -176,6 +181,10 @@ static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, return 0; } +void __weak __meminit pud_init(void *addr) +{ +} + static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr, unsigned long end) { @@ -207,8 +216,9 @@ static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr, if (!p) return -ENOMEM; } else { - p4d_populate(&init_mm, p4d, - early_alloc(PAGE_SIZE, NUMA_NO_NODE)); + p = early_alloc(PAGE_SIZE, NUMA_NO_NODE); + pud_init(p); + p4d_populate(&init_mm, p4d, p); } } zero_pud_populate(p4d, addr, next); diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 2e973b36fe07..d37831b8511c 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -291,17 +291,21 @@ struct kasan_stack_ring { #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) +#ifndef kasan_shadow_to_mem static inline const void *kasan_shadow_to_mem(const void *shadow_addr) { return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT); } +#endif +#ifndef addr_has_metadata static __always_inline bool addr_has_metadata(const void *addr) { return (kasan_reset_tag(addr) >= kasan_shadow_to_mem((void *)KASAN_SHADOW_START)); } +#endif /** * kasan_check_range - Check memory region, and report if invalid access. |