fs: push rcu_barrier() from deactivate_locked_super() to filesystems

[firefly-linux-kernel-4.4.55.git] / fs / openpromfs / inode.c

diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 4a3477949bca6da23a13161708e0ee7168fdb654..2ad080faca34e38d2ac8c5aed09a33135cae7d29 100644 (file)
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -463,6 +463,11 @@ static int __init init_openprom_fs(void)
 static void __exit exit_openprom_fs(void)
 {
        unregister_filesystem(&openprom_fs_type);
+       /*
+        * Make sure all delayed rcu free inodes are flushed before we
+        * destroy cache.
+        */
+       rcu_barrier();
        kmem_cache_destroy(op_inode_cachep);
 }