From aa8183ffbdc45f17d82e7b97c4b29a3a73c59bf1 Mon Sep 17 00:00:00 2001
From: Adek Maulana <adekzmaulana@gmail.com>
Date: Tue, 22 May 2018 03:33:32 +0700
Subject: [PATCH] sdfat: push rcu_barrier() from deactivate_locked_super() to
 filesystems

* This was introduce in:
  https://github.com/torvalds/linux/commit/8c0a853

Change-Id: Ia2488bac7937b35509a547ea387c2fed5303ffac
Signed-off-by: Adek Maulana <adekzmaulana@gmail.com>
---
 sdfat.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sdfat.c b/sdfat.c
index b248a89..d83bf36 100644
--- a/sdfat.c
+++ b/sdfat.c
@@ -4961,6 +4961,11 @@ static int __init sdfat_init_inodecache(void)
 
 static void sdfat_destroy_inodecache(void)
 {
+	/*
+	 * Make sure all delayed rcu free inodes are flushed before we
+	 * destroy cache.
+	 */
+	rcu_barrier();
 	kmem_cache_destroy(sdfat_inode_cachep);
 }