diff options
| author | Eric Dillmann <[email protected]> | 2013-01-28 23:48:11 +0100 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2013-01-29 09:30:23 -0800 |
| commit | 3cbfd259b709e3561b4b407d4a27eeec6dc201d0 (patch) | |
| tree | f8b4458104a9ddd4ebd6b16675c22dc1f819c915 /include | |
| parent | 0936c3449fc81caeed49d23e1705a9decd964700 (diff) | |
Define BE_IN16 & BE_IN32 for lz4 compression
The new lz4 compression algorithm, zfsonlinux/zfs@9759c60, requires
the generic BE_IN16 and BE_IN32 functions. These are added to the SPL
for other consumers to take advantage of.
Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sys/byteorder.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/sys/byteorder.h b/include/sys/byteorder.h index 30700f6b3..d09f5bf3e 100644 --- a/include/sys/byteorder.h +++ b/include/sys/byteorder.h @@ -34,4 +34,13 @@ #define BE_32(x) cpu_to_be32(x) #define BE_64(x) cpu_to_be64(x) +#define BE_IN8(xa) \ + *((uint8_t *)(xa)) + +#define BE_IN16(xa) \ + (((uint16_t)BE_IN8(xa) << 8) | BE_IN8((uint8_t *)(xa)+1)) + +#define BE_IN32(xa) \ + (((uint32_t)BE_IN16(xa) << 16) | BE_IN16((uint8_t *)(xa)+2)) + #endif /* SPL_BYTEORDER_H */ |