Date: Thu, 25 Jun 2009 22:24:14 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r195010 - user/kmacy/releng_7_2_fcs/sys/amd64/amd64 Message-ID: <200906252224.n5PMOELp066232@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: kmacy Date: Thu Jun 25 22:24:13 2009 New Revision: 195010 URL: http://svn.freebsd.org/changeset/base/195010 Log: guarantee absence of false sharing on pv_lock and page locks Modified: user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c Modified: user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c ============================================================================== --- user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c Thu Jun 25 22:22:03 2009 (r195009) +++ user/kmacy/releng_7_2_fcs/sys/amd64/amd64/pmap.c Thu Jun 25 22:24:13 2009 (r195010) @@ -184,8 +184,9 @@ struct vp_lock { #define PA_LOCK_COUNT 64 -struct vp_lock pa_lock[PA_LOCK_COUNT]; -struct mtx pv_lock; +struct mtx pv_lock __aligned(128); +struct vp_lock pa_lock[PA_LOCK_COUNT] __aligned(128); + struct pmap kernel_pmap_store;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200906252224.n5PMOELp066232>