Add the new g_dev_getprovider() function, the swap_pager needs it now.

Spotted by:	mr

2 files changed, 15 insertions, 0 deletions

diff --git a/sys/geom/geom.h b/sys/geom/geom.h
index 53f735609c74..cdb5de22e42d 100644
--- a/sys/geom/geom.h
+++ b/sys/geom/geom.h
@@ -173,6 +173,7 @@ struct g_provider {
 
 /* geom_dev.c */
 void g_dev_print(void);
+struct g_provider *g_dev_getprovider(dev_t dev);
 
 /* geom_dump.c */
 void g_hexdump(void *ptr, int length);
diff --git a/sys/geom/geom_dev.c b/sys/geom/geom_dev.c
index 6104aed9fd02..470ac8d894a0 100644
--- a/sys/geom/geom_dev.c
+++ b/sys/geom/geom_dev.c
@@ -133,6 +133,20 @@ g_dev_register_cloner(void *foo __unused)
 
 SYSINIT(geomdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE,g_dev_register_cloner,NULL);
 
+struct g_provider *
+g_dev_getprovider(dev_t dev)
+{
+	struct g_consumer *cp;
+
+	if (dev == NULL)
+		return (NULL);
+	if (devsw(dev) != &g_dev_cdevsw)
+		return (NULL);
+	cp = dev->si_drv2;
+	return (cp->provider);
+}
+
+
 static struct g_geom *
 g_dev_taste(struct g_class *mp, struct g_provider *pp, int insist __unused)
 {