diff options
Diffstat (limited to 'include/linux/slub_def.h')
| -rw-r--r-- | include/linux/slub_def.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index ea27065e80e..fd6627e2d11 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -60,7 +60,8 @@ struct kmem_cache { #define KMALLOC_SHIFT_LOW 3 #ifdef CONFIG_LARGE_ALLOCS -#define KMALLOC_SHIFT_HIGH 25 +#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT) =< 25 ? \ + (MAX_ORDER + PAGE_SHIFT - 1) : 25) #else #if !defined(CONFIG_MMU) || NR_CPUS > 512 || MAX_NUMNODES > 256 #define KMALLOC_SHIFT_HIGH 20 @@ -87,6 +88,9 @@ static inline int kmalloc_index(int size) */ WARN_ON_ONCE(size == 0); + if (size >= (1 << KMALLOC_SHIFT_HIGH)) + return -1; + if (size > 64 && size <= 96) return 1; if (size > 128 && size <= 192) |