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| author | lstewart <lstewart@FreeBSD.org> | 2010-07-13 06:49:34 +0000 |
|---|---|---|
| committer | lstewart <lstewart@FreeBSD.org> | 2010-07-13 06:49:34 +0000 |
| commit | 1330aa034b7f382975340f817ff6564f5f4eae8d (patch) | |
| tree | 1d8222351cedc9c246ead8fd3e83284e2741bd76 /sys/sys/pcpu.h | |
| parent | bc9554cce6ad9c32fb43ea7772ff1c42c04bdcbc (diff) | |
| download | FreeBSD-src-1330aa034b7f382975340f817ff6564f5f4eae8d.zip FreeBSD-src-1330aa034b7f382975340f817ff6564f5f4eae8d.tar.gz | |
- Rename DPCPU_SUM to DPCPU_VARSUM to better reflect the fact it operates on
member variables of a DPCPU struct.
- Add DPCPU_SUM which sums a DPCPU variable.
Sponsored by: FreeBSD Foundation
MFC after: 3 days
Diffstat (limited to 'sys/sys/pcpu.h')
| -rw-r--r-- | sys/sys/pcpu.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/sys/pcpu.h b/sys/sys/pcpu.h index ea4befb..c157807 100644 --- a/sys/sys/pcpu.h +++ b/sys/sys/pcpu.h @@ -109,7 +109,19 @@ extern uintptr_t dpcpu_off[]; /* * Utility macros. */ -#define DPCPU_SUM(n, var) __extension__ \ +#define DPCPU_SUM(n) __extension__ \ +({ \ + u_int _i; \ + __typeof(DPCPU_PTR(n)) sum; \ + \ + sum = 0; \ + CPU_FOREACH(_i) { \ + sum += DPCPU_ID_PTR(_i, n); \ + } \ + sum; \ +}) + +#define DPCPU_VARSUM(n, var) __extension__ \ ({ \ u_int _i; \ __typeof((DPCPU_PTR(n))->var) sum; \ |
