diff options
| author | Brian Behlendorf <[email protected]> | 2009-01-06 09:23:13 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2009-01-06 09:23:13 -0800 |
| commit | 160c63ab763f620592fbdc8271a3f7b66e080b74 (patch) | |
| tree | 0643a50021c91e5b65e4c4ba07fb264e3b3b6aec /include/sys/sysmacros.h | |
| parent | 7adbea4141d9ac2df0a1fc622747090d6ea91c32 (diff) | |
Add P2BOUNDARY macro
Diffstat (limited to 'include/sys/sysmacros.h')
| -rw-r--r-- | include/sys/sysmacros.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sys/sysmacros.h b/include/sys/sysmacros.h index 9507de0ac..94ff3f84e 100644 --- a/include/sys/sysmacros.h +++ b/include/sys/sysmacros.h @@ -165,6 +165,8 @@ extern int ddi_strtoul(const char *str, char **nptr, (-(type)(x) & ((type)(align) - 1)) #define ISP2(x) (((x) & ((x) - 1)) == 0) #define IS_P2ALIGNED(v, a) ((((uintptr_t)(v)) & ((uintptr_t)(a) - 1)) == 0) +#define P2BOUNDARY(off, len, align) \ + (((off) ^ ((off) + (len) - 1)) > (align) - 1) /* * Typed version of the P2* macros. These macros should be used to ensure |