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libceph: add signed type limits 

Flesh out the limits defined in <linux/ceph/decode.h> to include the
maximum and minimum values for signed type S8, S16, S32, and S64.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Alex Elder 2013-04-19 15:34:50 -05:00 committed by Sage Weil
parent a9e8ba2cb3
commit b587398a4f
1 changed files with 14 additions and 4 deletions
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18
include/linux/ceph/decode.h
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@ -10,10 +10,20 @@
/* This seemed to be the easiest place to define these */
#define U8_MAX ((u8) (~0U))
#define U16_MAX ((u16) (~0U))
#define U32_MAX ((u32) (~0U))
#define U64_MAX ((u64) (~0ULL))
#define U8_MAX ((u8)(~0U))
#define U16_MAX ((u16)(~0U))
#define U32_MAX ((u32)(~0U))
#define U64_MAX ((u64)(~0ULL))
#define S8_MAX ((s8)(U8_MAX >> 1))
#define S16_MAX ((s16)(U16_MAX >> 1))
#define S32_MAX ((s32)(U32_MAX >> 1))
#define S64_MAX ((s64)(U64_MAX >> 1LL))
#define S8_MIN ((s8)(-S8_MAX - 1))
#define S16_MIN ((s16)(-S16_MAX - 1))
#define S32_MIN ((s32)(-S32_MAX - 1))
#define S64_MIN ((s64)(-S64_MAX - 1LL))
/*
* in all cases,