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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-19 08:13:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-19 08:13:04 -0800
commit7e0165b2f1a912a06e381e91f0f4e495f4ac3736 (patch)
tree62ee8eb625f50cc259e078b8796618e2e8fe839b /include
parent5f096c0ecd53263a94124bdfa516a29f154e44ed (diff)
parent045f6d7942be248fbda6e85b2393f2735695ed39 (diff)
Merge branch 'akpm' (patches from Andrew)
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()
Diffstat (limited to 'include')
-rw-r--r--include/linux/kasan.h15
-rw-r--r--include/linux/mm.h3
2 files changed, 12 insertions, 6 deletions
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 4f404c565db1..e18fe54969e9 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -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,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c97ea3b694e6..80a9162b406c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -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);