Date: Tue, 13 Jul 2010 06:49:35 +0000 (UTC) From: Lawrence Stewart <lstewart@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r209978 - head/sys/sys Message-ID: <201007130649.o6D6nZ5a046715@svn.freebsd.org>
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Author: lstewart Date: Tue Jul 13 06:49:34 2010 New Revision: 209978 URL: http://svn.freebsd.org/changeset/base/209978 Log: - 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 Modified: head/sys/sys/pcpu.h Modified: head/sys/sys/pcpu.h ============================================================================== --- head/sys/sys/pcpu.h Tue Jul 13 06:42:47 2010 (r209977) +++ head/sys/sys/pcpu.h Tue Jul 13 06:49:34 2010 (r209978) @@ -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; \
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