Date: Wed, 24 Oct 2012 14:36:26 +0000 (UTC) From: Andre Oppermann <andre@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r242002 - user/andre/tcp_workqueue/sys/sys Message-ID: <201210241436.q9OEaQpB033465@svn.freebsd.org>
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Author: andre Date: Wed Oct 24 14:36:26 2012 New Revision: 242002 URL: http://svn.freebsd.org/changeset/base/242002 Log: Different approach to mutex alignment with a simple helper macro MTX_ALIGN to insert the proper compiler specific and architecture specific cache line alignment for global mutexes. Modified: user/andre/tcp_workqueue/sys/sys/mutex.h Modified: user/andre/tcp_workqueue/sys/sys/mutex.h ============================================================================== --- user/andre/tcp_workqueue/sys/sys/mutex.h Wed Oct 24 14:34:13 2012 (r242001) +++ user/andre/tcp_workqueue/sys/sys/mutex.h Wed Oct 24 14:36:26 2012 (r242002) @@ -399,6 +399,12 @@ do { \ * on SMP systems. */ #ifdef SMP +#define MTX_ALIGN __aligned(CACHE_LINE_SIZE) +#else +#define MTX_ALIGN +#endif + +#ifdef SMP #define MTX_GLOBAL(name) \ struct mtx __aligned(CACHE_LINE_SIZE) (name) #else /* SMP */
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