From owner-svn-src-all@FreeBSD.ORG Tue Jan 15 01:27:05 2013 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 7C63B67E; Tue, 15 Jan 2013 01:27:05 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id 5FB259EE; Tue, 15 Jan 2013 01:27:05 +0000 (UTC) Received: from svn.freebsd.org (svn.FreeBSD.org [8.8.178.70]) by svn.freebsd.org (8.14.5/8.14.5) with ESMTP id r0F1R5fR009271; Tue, 15 Jan 2013 01:27:05 GMT (envelope-from mav@svn.freebsd.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.5/8.14.5/Submit) id r0F1R5hF009270; Tue, 15 Jan 2013 01:27:05 GMT (envelope-from mav@svn.freebsd.org) Message-Id: <201301150127.r0F1R5hF009270@svn.freebsd.org> From: Alexander Motin Date: Tue, 15 Jan 2013 01:27:05 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r245444 - head/sys/geom/raid3 X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jan 2013 01:27:05 -0000 Author: mav Date: Tue Jan 15 01:27:04 2013 New Revision: 245444 URL: http://svnweb.freebsd.org/changeset/base/245444 Log: Alike to r242314 for GRAID make GRAID3 more aggressive in marking volumes as clean on shutdown and move that action from shutdown_pre_sync stage to shutdown_post_sync to avoid extra flapping. ZFS tends to not close devices on shutdown, that doesn't allow GEOM RAID to shutdown gracefully. To handle that, mark volume as clean just when shutdown time comes and there are no active writes. MFC after: 2 weeks Modified: head/sys/geom/raid3/g_raid3.c Modified: head/sys/geom/raid3/g_raid3.c ============================================================================== --- head/sys/geom/raid3/g_raid3.c Tue Jan 15 01:13:55 2013 (r245443) +++ head/sys/geom/raid3/g_raid3.c Tue Jan 15 01:27:04 2013 (r245444) @@ -104,7 +104,8 @@ SYSCTL_UINT(_kern_geom_raid3_stat, OID_A G_RAID3_DEBUG(4, "%s: Woken up %p.", __func__, (ident)); \ } while (0) -static eventhandler_tag g_raid3_pre_sync = NULL; +static eventhandler_tag g_raid3_post_sync = NULL; +static int g_raid3_shutdown = 0; static int g_raid3_destroy_geom(struct gctl_req *req, struct g_class *mp, struct g_geom *gp); @@ -876,7 +877,7 @@ g_raid3_idle(struct g_raid3_softc *sc, i return (0); if (acw > 0 || (acw == -1 && sc->sc_provider->acw > 0)) { timeout = g_raid3_idletime - (time_uptime - sc->sc_last_write); - if (timeout > 0) + if (!g_raid3_shutdown && timeout > 0) return (timeout); } sc->sc_idle = 1; @@ -3098,7 +3099,7 @@ g_raid3_access(struct g_provider *pp, in error = ENXIO; goto end; } - if (dcw == 0 && !sc->sc_idle) + if (dcw == 0) g_raid3_idle(sc, dcw); if ((sc->sc_flags & G_RAID3_DEVICE_FLAG_DESTROYING) != 0) { if (acr > 0 || acw > 0 || ace > 0) { @@ -3544,7 +3545,7 @@ g_raid3_dumpconf(struct sbuf *sb, const } static void -g_raid3_shutdown_pre_sync(void *arg, int howto) +g_raid3_shutdown_post_sync(void *arg, int howto) { struct g_class *mp; struct g_geom *gp, *gp2; @@ -3554,6 +3555,7 @@ g_raid3_shutdown_pre_sync(void *arg, int mp = arg; DROP_GIANT(); g_topology_lock(); + g_raid3_shutdown = 1; LIST_FOREACH_SAFE(gp, &mp->geom, geom, gp2) { if ((sc = gp->softc) == NULL) continue; @@ -3562,6 +3564,7 @@ g_raid3_shutdown_pre_sync(void *arg, int continue; g_topology_unlock(); sx_xlock(&sc->sc_lock); + g_raid3_idle(sc, -1); g_cancel_event(sc); error = g_raid3_destroy(sc, G_RAID3_DESTROY_DELAYED); if (error != 0) @@ -3576,9 +3579,9 @@ static void g_raid3_init(struct g_class *mp) { - g_raid3_pre_sync = EVENTHANDLER_REGISTER(shutdown_pre_sync, - g_raid3_shutdown_pre_sync, mp, SHUTDOWN_PRI_FIRST); - if (g_raid3_pre_sync == NULL) + g_raid3_post_sync = EVENTHANDLER_REGISTER(shutdown_post_sync, + g_raid3_shutdown_post_sync, mp, SHUTDOWN_PRI_FIRST); + if (g_raid3_post_sync == NULL) G_RAID3_DEBUG(0, "Warning! Cannot register shutdown event."); } @@ -3586,8 +3589,8 @@ static void g_raid3_fini(struct g_class *mp) { - if (g_raid3_pre_sync != NULL) - EVENTHANDLER_DEREGISTER(shutdown_pre_sync, g_raid3_pre_sync); + if (g_raid3_post_sync != NULL) + EVENTHANDLER_DEREGISTER(shutdown_post_sync, g_raid3_post_sync); } DECLARE_GEOM_CLASS(g_raid3_class, g_raid3);