Add root_mounted() function that returns true if the root file system is

already mounted.

2 files changed, 15 insertions, 0 deletions

diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c
index cb556a2..b7dec78 100644
--- a/sys/kern/vfs_mount.c
+++ b/sys/kern/vfs_mount.c
@@ -1383,6 +1383,20 @@ root_mount_done(void)
 	mtx_unlock(&mountlist_mtx);
 }
 
+ /*
+ * Return true if root is already mounted.
+ */
+int
+root_mounted(void)
+{
+	int mounted;
+
+	mtx_lock(&mountlist_mtx);
+	mounted = root_mount_complete;
+	mtx_unlock(&mountlist_mtx);
+	return (mounted);
+}
+
 /*
  * Wait until root is mounted.
  */
diff --git a/sys/sys/systm.h b/sys/sys/systm.h
index 673619e..817982c 100644
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -340,6 +340,7 @@ struct root_hold_token;
 struct root_hold_token *root_mount_hold(const char *identifier);
 void root_mount_rel(struct root_hold_token *h);
 void root_mount_wait(void);
+int root_mounted(void);
 
 
 /*