From 8d105bca1c7437f233c22e85bb34a29aa23167d2 Mon Sep 17 00:00:00 2001
From: phk <phk@FreeBSD.org>
Date: Sat, 7 Jun 2003 15:46:53 +0000
Subject: [PATCH] Improve the root-dev prompt facility for printing devices
 which could possibly be a root filesystem.

---
 sys/geom/geom.h      |  2 +-
 sys/geom/geom_dev.c  | 14 ++++++--------
 sys/kern/vfs_mount.c | 13 ++-----------
 3 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/sys/geom/geom.h b/sys/geom/geom.h
index aed9498789e5..53f735609c74 100644
--- a/sys/geom/geom.h
+++ b/sys/geom/geom.h
@@ -172,7 +172,7 @@ struct g_provider {
 };
 
 /* geom_dev.c */
-int g_dev_print(void);
+void g_dev_print(void);
 
 /* 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 65ae7228679d..a00ce6ae8f37 100644
--- a/sys/geom/geom_dev.c
+++ b/sys/geom/geom_dev.c
@@ -76,19 +76,17 @@ static struct g_class g_dev_class	= {
 	.taste = g_dev_taste,
 };
 
-int
+void
 g_dev_print(void)
 {
 	struct g_geom *gp;
+	char const *p = "";
 
-	g_waitidle();
-	if (LIST_EMPTY(&g_dev_class.geom))
-		return (0);
-	printf("List of GEOM disk devices:\n  ");
-	LIST_FOREACH(gp, &g_dev_class.geom, geom)
-		printf(" %s", gp->name);
+	LIST_FOREACH(gp, &g_dev_class.geom, geom) {
+		printf("%s%s", p, gp->name);
+		p = " ";
+	}
 	printf("\n");
-	return (1);
 }
 
 /*
diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c
index 6a12f20e9445..f9cc52a3762f 100644
--- a/sys/kern/vfs_mount.c
+++ b/sys/kern/vfs_mount.c
@@ -1600,8 +1600,6 @@ static int
 vfs_mountroot_ask(void)
 {
 	char name[128];
-	int i;
-	dev_t dev;
 
 	for(;;) {
 		printf("\nManual root filesystem specification:\n");
@@ -1618,15 +1616,8 @@ vfs_mountroot_ask(void)
 		if (name[0] == 0)
 			return(1);
 		if (name[0] == '?') {
-			if (!g_dev_print()) {
-				printf("Possibly valid devices for 'ufs' root:\n");
-				for (i = 0; i < NUMCDEVSW; i++) {
-					dev = makedev(i, 0);
-					if (devsw(dev) != NULL)
-						printf(" \"%s\"", devsw(dev)->d_name);
-				}
-			}
-			printf("\n");
+			printf("\nList of GEOM managed disk devices:\n  ");
+			g_dev_print();
 			continue;
 		}
 		if (!vfs_mountroot_try(name))