Commit the correct copy of the g_stat structure.

Add debug.sizeof.g_stat sysctl.

Set the id field of the g_stat when we create consumers and providers.

Remove biocount from consumer, we will use the counters in the g_stat
structure instead.  Replace one field which will need to be atomically
manipulated with two fields which will not (stat.nop and stat.nend).

Change add companion field to bio_children: bio_inbed for the exact
same reason.

Don't output the biocount in the confdot output.

Fix KASSERT in g_io_request().

Add sysctl kern.geom.collectstats defaulting to off.

Collect the following raw statistics conditioned on this sysctl:

    for each consumer and provider {
        total number of operations started.
        total number of operations completed.
        time last operation completed.
        sum of idle-time.
        for each of BIO_READ, BIO_WRITE and BIO_DELETE {
            number of operations completed.
            number of bytes completed.
            number of ENOMEM errors.
            number of other errors.
            sum of transaction time.
        }
    }

API for getting hold of these statistics data not included yet.

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/geom/geom_dev.c b/sys/geom/geom_dev.c
index 99f4cc7..24234b9 100644
--- a/sys/geom/geom_dev.c
+++ b/sys/geom/geom_dev.c
@@ -430,7 +430,7 @@ g_dev_orphan(struct g_consumer *cp)
 	gp = cp->geom;
 	g_trace(G_T_TOPOLOGY, "g_dev_orphan(%p(%s))", cp, gp->name);
 	g_topology_assert();
-	if (cp->biocount > 0)
+	if (cp->stat.nop != cp->stat.nend)	/* XXX ? */
 		return;
 	dev = gp->softc;
 	if (dev->si_flags & SI_DUMPDEV)