diff options
Diffstat (limited to 'kerncompat.h')
| -rw-r--r-- | kerncompat.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kerncompat.h b/kerncompat.h index fa96715f..08133164 100644 --- a/kerncompat.h +++ b/kerncompat.h @@ -263,6 +263,16 @@ static inline int IS_ERR_OR_NULL(const void *ptr) return !ptr || IS_ERR(ptr); } +#define div_u64(x, y) ((x) / (y)) + +/** + * __swap - swap values of @a and @b + * @a: first value + * @b: second value + */ +#define __swap(a, b) \ + do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0) + /* * This looks more complex than it should be. But we need to * get the type for the ~ right in round_down (it needs to be @@ -289,6 +299,10 @@ static inline int IS_ERR_OR_NULL(const void *ptr) #define kfree(x) free(x) #define vmalloc(x) malloc(x) #define vfree(x) free(x) +#define kvzalloc(x, y) kzalloc(x,y) +#define kvfree(x) free(x) +#define memalloc_nofs_save() (0) +#define memalloc_nofs_restore(x) ((void)(x)) #ifndef BTRFS_DISABLE_BACKTRACE static inline void assert_trace(const char *assertion, const char *filename, |