diff options
Diffstat (limited to 'arch/um/drivers/cow.h')
| -rw-r--r-- | arch/um/drivers/cow.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h index 4fcbe8b1b77e..c54e20a3d21d 100644 --- a/arch/um/drivers/cow.h +++ b/arch/um/drivers/cow.h @@ -3,6 +3,26 @@ #include <asm/types.h> +#if defined(__KERNEL__) + +# include <asm/byteorder.h> + +# if defined(__BIG_ENDIAN) +# define ntohll(x) (x) +# define htonll(x) (x) +# elif defined(__LITTLE_ENDIAN) +# define ntohll(x) be64_to_cpu(x) +# define htonll(x) cpu_to_be64(x) +# else +# error "Could not determine byte order" +# endif + +#else +/* For the definition of ntohl, htonl and __BYTE_ORDER */ +#include <endian.h> +#include <netinet/in.h> +#if defined(__BYTE_ORDER) + #if __BYTE_ORDER == __BIG_ENDIAN # define ntohll(x) (x) # define htonll(x) (x) @@ -10,8 +30,13 @@ # define ntohll(x) bswap_64(x) # define htonll(x) bswap_64(x) #else -#error "__BYTE_ORDER not defined" +# error "Could not determine byte order: __BYTE_ORDER uncorrectly defined" +#endif + +#else /* ! defined(__BYTE_ORDER) */ +# error "Could not determine byte order: __BYTE_ORDER not defined" #endif +#endif /* ! defined(__KERNEL__) */ extern int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize, int alignment, int *bitmap_offset_out, |