diff options
Diffstat (limited to 'kernel/include/linux/swapops.h')
| -rw-r--r-- | kernel/include/linux/swapops.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/kernel/include/linux/swapops.h b/kernel/include/linux/swapops.h index cedf3d3c3..5c3a5f3e7 100644 --- a/kernel/include/linux/swapops.h +++ b/kernel/include/linux/swapops.h @@ -164,6 +164,9 @@ static inline int is_write_migration_entry(swp_entry_t entry) #endif #ifdef CONFIG_MEMORY_FAILURE + +extern atomic_long_t num_poisoned_pages __read_mostly; + /* * Support for hardware poisoned pages */ @@ -177,6 +180,31 @@ static inline int is_hwpoison_entry(swp_entry_t entry) { return swp_type(entry) == SWP_HWPOISON; } + +static inline bool test_set_page_hwpoison(struct page *page) +{ + return TestSetPageHWPoison(page); +} + +static inline void num_poisoned_pages_inc(void) +{ + atomic_long_inc(&num_poisoned_pages); +} + +static inline void num_poisoned_pages_dec(void) +{ + atomic_long_dec(&num_poisoned_pages); +} + +static inline void num_poisoned_pages_add(long num) +{ + atomic_long_add(num, &num_poisoned_pages); +} + +static inline void num_poisoned_pages_sub(long num) +{ + atomic_long_sub(num, &num_poisoned_pages); +} #else static inline swp_entry_t make_hwpoison_entry(struct page *page) @@ -188,6 +216,15 @@ static inline int is_hwpoison_entry(swp_entry_t swp) { return 0; } + +static inline bool test_set_page_hwpoison(struct page *page) +{ + return false; +} + +static inline void num_poisoned_pages_inc(void) +{ +} #endif #if defined(CONFIG_MEMORY_FAILURE) || defined(CONFIG_MIGRATION) |