1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index d0cf4fb7c9ce..e8adbffc626f 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -49,6 +49,7 @@ enum {
  * @ns_writer: back pointer to writable nilfs_sb_info
  * @ns_sem: semaphore for shared states
  * @ns_super_sem: semaphore for global operations across super block instances
+ * @ns_mount_mutex: mutex protecting mount process of nilfs
  * @ns_writer_mutex: mutex protecting ns_writer attach/detach
  * @ns_writer_refcount: number of referrers on ns_writer
  * @ns_current: back pointer to current mount
@@ -98,6 +99,7 @@ struct the_nilfs {
         struct nilfs_sb_info   *ns_writer;
         struct rw_semaphore     ns_sem;
         struct rw_semaphore     ns_super_sem;
+        struct mutex            ns_mount_mutex;
         struct mutex            ns_writer_mutex;
         atomic_t                ns_writer_refcount;