2 files changed, 13 insertions, 2 deletions

diff --git a/sbin/kldunload/kldunload.8 b/sbin/kldunload/kldunload.8
index f74965613500..935e5afb71ed 100644
--- a/sbin/kldunload/kldunload.8
+++ b/sbin/kldunload/kldunload.8
@@ -33,9 +33,11 @@
 .Nd unload a file from the kernel
 .Sh SYNOPSIS
 .Nm
+.Op Fl f
 .Op Fl v
 .Fl i Ar id
 .Nm
+.Op Fl f
 .Op Fl v
 .Op Fl n
 .Ar name
@@ -47,6 +49,11 @@ utility unloads a file which was previously loaded with
 .Pp
 The following options are available:
 .Bl -tag -width indentXX
+.It Fl f
+Force the unload.
+This ignores error returns to MOD_QUISCE from the module and implies
+that the module should be unloaded even if it is currently in use.
+The users are left to cope as best they can.
 .It Fl v
 Be more verbose.
 .It Fl i Ar id
diff --git a/sbin/kldunload/kldunload.c b/sbin/kldunload/kldunload.c
index be86960b3e17..29da28d07774 100644
--- a/sbin/kldunload/kldunload.c
+++ b/sbin/kldunload/kldunload.c
@@ -48,10 +48,14 @@ main(int argc, char** argv)
     int c;
     int verbose = 0;
     int fileid = 0;
+    int force = LINKER_UNLOAD_NORMAL;
     char* filename = NULL;
 
-    while ((c = getopt(argc, argv, "i:n:v")) != -1)
+    while ((c = getopt(argc, argv, "fi:n:v")) != -1)
 	switch (c) {
+	case 'f':
+	    force = LINKER_UNLOAD_FORCE;
+	    break;
 	case 'i':
 	    fileid = atoi(optarg);
 	    if (!fileid)
@@ -93,7 +97,7 @@ main(int argc, char** argv)
 	printf("Unloading %s, id=%d\n", stat.name, fileid);
     }
 
-    if (kldunload(fileid) < 0)
+    if (kldunloadf(fileid, force) < 0)
 	err(1, "can't unload file");
 
     return 0;