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From: Alexander Motin <mav@FreeBSD.org>
Date: Thu, 24 Dec 2009 12:17:22 +0000 (UTC)
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Subject: svn commit: r200935 - head/sys/geom/mirror
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Author: mav
Date: Thu Dec 24 12:17:22 2009
New Revision: 200935
URL: http://svn.freebsd.org/changeset/base/200935

Log:
  As soon as mirror has no own stripes, report largest stripe of unrerlying
  components, hoping others fit, if they are not equal.

Modified:
  head/sys/geom/mirror/g_mirror.c

Modified: head/sys/geom/mirror/g_mirror.c
==============================================================================
--- head/sys/geom/mirror/g_mirror.c	Thu Dec 24 11:05:23 2009	(r200934)
+++ head/sys/geom/mirror/g_mirror.c	Thu Dec 24 12:17:22 2009	(r200935)
@@ -2036,6 +2036,15 @@ g_mirror_launch_provider(struct g_mirror
 	pp = g_new_providerf(sc->sc_geom, "mirror/%s", sc->sc_name);
 	pp->mediasize = sc->sc_mediasize;
 	pp->sectorsize = sc->sc_sectorsize;
+	pp->stripesize = 0;
+	pp->stripeoffset = 0;
+	LIST_FOREACH(disk, &sc->sc_disks, d_next) {
+		if (disk->d_consumer && disk->d_consumer->provider &&
+		    disk->d_consumer->provider->stripesize > pp->stripesize) {
+			pp->stripesize = disk->d_consumer->provider->stripesize;
+			pp->stripeoffset = disk->d_consumer->provider->stripeoffset;
+		}
+	}
 	sc->sc_provider = pp;
 	g_error_provider(pp, 0);
 	g_topology_unlock();