Add object list to inodes

This patch adds a list of arbitrary objects to inodes.

This is used by LITMUS^RT's locking API to attach lock objects to inodes
(which represent namespaces in Linux's locking API).

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/inode.c b/fs/inode.c
index 88110fd0b282..d063db37db34 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -374,6 +374,8 @@ void inode_init_once(struct inode *inode)
 #ifdef CONFIG_FSNOTIFY
         INIT_HLIST_HEAD(&inode->i_fsnotify_marks);
 #endif
+        INIT_LIST_HEAD(&inode->i_obj_list);
+        mutex_init(&inode->i_obj_mutex);
 }
 EXPORT_SYMBOL(inode_init_once);