diff --git a/fs/open.c b/fs/open.c
index 3d64372ecc67..e5ff4d052f80 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -787,9 +787,21 @@ int chown_common(const struct path *path, uid_t user, gid_t group)
 		path,
 		from_vfsuid(idmap, fs_userns, newattrs.ia_vfsuid),
 		from_vfsgid(idmap, fs_userns, newattrs.ia_vfsgid));
+	printk(KERN_INFO "After security_path_chown: owner=%lx\n",
+       		atomic_long_read(&inode->i_rwsem.owner));
 	if (!error)
 		error = notify_change(idmap, path->dentry, &newattrs,
 				      &delegated_inode);
+	printk(KERN_INFO "After notify_change: owner=%lx, error=%d\n",
+       		atomic_long_read(&inode->i_rwsem.owner), error);
+	if (atomic_long_read(&inode->i_rwsem.owner) != (long)current) {
+   		printk(KERN_ERR "BUG: About to unlock rwsem we don't own!\n");
+    		printk(KERN_ERR "  inode=%p\n", inode);
+    		printk(KERN_ERR "  i_rwsem.owner=%lx\n", atomic_long_read(&inode->i_rwsem.owner));
+    		printk(KERN_ERR "  current=%p\n", current);
+    		printk(KERN_ERR "  delegated_inode=%p\n", delegated_inode);
+    		dump_stack();
+	}
 	inode_unlock(inode);
 	if (delegated_inode) {
 		error = break_deleg_wait(&delegated_inode);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c895146c1444..84f7267aac3d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -987,6 +987,11 @@ static inline __must_check int inode_lock_killable(struct inode *inode)
 
 static inline void inode_unlock(struct inode *inode)
 {
+	printk(KERN_INFO "[%d] inode_unlock: inode=%p, owner=%lx, current=%p (%s:%d)\n",
+	       count, inode,
+	       atomic_long_read(&inode->i_rwsem.owner),
+	       current, current->comm, current->pid);
+	dump_stack();
 	up_write(&inode->i_rwsem);
 }