diff options
Diffstat (limited to 'sys/geom/geom_subr.c')
| -rw-r--r-- | sys/geom/geom_subr.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/sys/geom/geom_subr.c b/sys/geom/geom_subr.c index 54b03f9..934dfab 100644 --- a/sys/geom/geom_subr.c +++ b/sys/geom/geom_subr.c @@ -60,6 +60,37 @@ char *g_wait_event, *g_wait_up, *g_wait_down, *g_wait_sim; static int g_ignition; + +/* + * This event offers a new class a chance to taste all preexisting providers. + */ +static void +g_new_class_event(void *arg, int flag) +{ + struct g_class *mp2, *mp; + struct g_geom *gp; + struct g_provider *pp; + + g_topology_assert(); + if (flag == EV_CANCEL) + return; + if (g_shutdown) + return; + mp2 = arg; + if (mp2->taste == NULL) + return; + LIST_FOREACH(mp, &g_classes, class) { + if (mp2 == mp) + continue; + LIST_FOREACH(gp, &mp->geom, geom) { + LIST_FOREACH(pp, &gp->provider, provider) { + mp2->taste(mp2, pp, 0); + g_topology_assert(); + } + } + } +} + void g_add_class(struct g_class *mp) { @@ -73,8 +104,8 @@ g_add_class(struct g_class *mp) g_trace(G_T_TOPOLOGY, "g_add_class(%s)", mp->name); LIST_INIT(&mp->geom); LIST_INSERT_HEAD(&g_classes, mp, class); - if (g_nproviders > 0) - g_post_event(EV_NEW_CLASS, mp, NULL); + if (g_nproviders > 0 && mp->taste != NULL) + g_call_me(g_new_class_event, mp, mp, NULL); g_topology_unlock(); } |
