libmount: copy uniq_id in mnt_copy_fs()

The mnt_copy_fs() function copies all filesystem entry fields but
missed uniq_id, causing the unique mount ID to be lost when fs entries
are duplicated (e.g., for utab updates).

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/libmount/src/fs.c b/libmount/src/fs.c
index 3b7252486f698113f4992b1eb2db89c762fa5fda..a0d18a4f986cf9ba9d59dd552b7701e8a1144e43 100644 (file)
--- a/libmount/src/fs.c
+++ b/libmount/src/fs.c
@@ -276,6 +276,7 @@ struct libmnt_fs *mnt_copy_fs(struct libmnt_fs *dest,
        dest->parent     = src->parent;
        dest->devno      = src->devno;
        dest->tid        = src->tid;
+       dest->uniq_id    = src->uniq_id;
 
        if (cpy_str_at_offset(dest, src, offsetof(struct libmnt_fs, source)))
                goto err;