xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'akpm' (patches from Andrew)

Browse Source 
Merge fixes from Andrew Morton:
 "6 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  lib/Kconfig.debug: fix some messed up configurations
  mm: vmscan: protect shrinker idr replace with CONFIG_MEMCG
  kasan: don't assume percpu shadow allocations will succeed
  kasan: use apply_to_existing_page_range() for releasing vmalloc shadow
  mm/memory.c: add apply_to_existing_page_range() helper
  kasan: fix crashes on access to memory mapped by vm_map_ram()
This commit is contained in:
Linus Torvalds
2019-12-19 08:13:04 -08:00
parent 5f096c0ecd 045f6d7942
commit 7e0165b2f1
7 changed files with 266 additions and 171 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
include/linux/kasan.h
View File

@@ -205,20 +205,23 @@ static inline void *kasan_reset_tag(const void *addr)
#endif /* CONFIG_KASAN_SW_TAGS */
#ifdef CONFIG_KASAN_VMALLOC
int kasan_populate_vmalloc(unsigned long requested_size,
struct vm_struct *area);
void kasan_poison_vmalloc(void *start, unsigned long size);
int kasan_populate_vmalloc(unsigned long addr, unsigned long size);
void kasan_poison_vmalloc(const void *start, unsigned long size);
void kasan_unpoison_vmalloc(const void *start, unsigned long size);
void kasan_release_vmalloc(unsigned long start, unsigned long end,
unsigned long free_region_start,
unsigned long free_region_end);
#else
static inline int kasan_populate_vmalloc(unsigned long requested_size,
struct vm_struct *area)
static inline int kasan_populate_vmalloc(unsigned long start,
unsigned long size)
{
return 0;
}
static inline void kasan_poison_vmalloc(void *start, unsigned long size) {}
static inline void kasan_poison_vmalloc(const void *start, unsigned long size)
{ }
static inline void kasan_unpoison_vmalloc(const void *start, unsigned long size)
{ }
static inline void kasan_release_vmalloc(unsigned long start,
unsigned long end,
unsigned long free_region_start,

3
include/linux/mm.h
View File

@@ -2621,6 +2621,9 @@ static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags)
typedef int (*pte_fn_t)(pte_t *pte, unsigned long addr, void *data);
extern int apply_to_page_range(struct mm_struct *mm, unsigned long address,
unsigned long size, pte_fn_t fn, void *data);
extern int apply_to_existing_page_range(struct mm_struct *mm,
unsigned long address, unsigned long size,
pte_fn_t fn, void *data);
#ifdef CONFIG_PAGE_POISONING
extern bool page_poisoning_enabled(void);