[PATCH RFC] xfsprogs: suggest "-d" option for repair of RO mount

[Eric Sandeen]

How dangerous is dangerous?

We could offer the suggestion of a "-d" repair, if we're
in single-user mode with the root fs mounted readonly.

This change suggests -d to repair any RO mounted fs.

Signed-off-by: Eric Sandeen <sandeen at redhat.com>
---

diff --git a/repair/init.c b/repair/init.c
index c3f380b..a7a7613 100644
--- a/repair/init.c
+++ b/repair/init.c
@@ -97,8 +97,17 @@ xfs_init(libxfs_init_t *args)
 	else
 		args->isreadonly = LIBXFS_EXCLUSIVELY;
 
-	if (!libxfs_init(args))
+	if (!libxfs_init(args)) {
+		/* would -d be an option? */
+		if (!no_modify && !dangerously) {
+			args->isreadonly = (LIBXFS_ISINACTIVE |
+					    LIBXFS_DANGEROUSLY);
+			if (libxfs_init(args))
+				fprintf(stderr,
+_("Unmount or use -d to repair a read-only mounted filesystem\n"));
+		}
 		do_error(_("couldn't initialize XFS library\n"));
+	}
 
 	ts_create();
 	increase_rlimit();