diff options
Diffstat (limited to 'include/linux/page-flags-layout.h')
| -rw-r--r-- | include/linux/page-flags-layout.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h index 7d79818dc065..760006b1c480 100644 --- a/include/linux/page-flags-layout.h +++ b/include/linux/page-flags-layout.h @@ -72,8 +72,10 @@ #define NODE_NOT_IN_PAGE_FLAGS 1 #endif -#if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) +#if defined(CONFIG_KASAN_SW_TAGS) #define KASAN_TAG_WIDTH 8 +#elif defined(CONFIG_KASAN_HW_TAGS) +#define KASAN_TAG_WIDTH 4 #else #define KASAN_TAG_WIDTH 0 #endif @@ -111,5 +113,12 @@ ZONES_WIDTH - LRU_GEN_WIDTH - SECTIONS_WIDTH - \ NODES_WIDTH - KASAN_TAG_WIDTH - LAST_CPUPID_WIDTH) +#define NR_NON_PAGEFLAG_BITS (SECTIONS_WIDTH + NODES_WIDTH + ZONES_WIDTH + \ + LAST_CPUPID_SHIFT + KASAN_TAG_WIDTH + \ + LRU_GEN_WIDTH + LRU_REFS_WIDTH) + +#define NR_UNUSED_PAGEFLAG_BITS (BITS_PER_LONG - \ + (NR_NON_PAGEFLAG_BITS + NR_PAGEFLAGS)) + #endif #endif /* _LINUX_PAGE_FLAGS_LAYOUT */ |