Add object list to inodes

This patch adds a list of arbitrary objects to inodes.

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

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 65c2be22b601..8a0ac17dc350 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -508,6 +508,7 @@ static inline int mapping_writably_mapped(struct address_space *mapping)
 
 struct posix_acl;
 #define ACL_NOT_CACHED ((void *)(-1))
+struct inode_obj_id_table;
 
 #define IOP_FASTPERM    0x0001
 #define IOP_LOOKUP      0x0002
@@ -606,6 +607,10 @@ struct inode {
 #ifdef CONFIG_IMA
         atomic_t                i_readcount; /* struct files open RO */
 #endif
+
+        struct list_head        i_obj_list;
+        struct mutex            i_obj_mutex;
+
         void                    *i_private; /* fs or device private pointer */
 };