From 7485f1c81d607fe9fbf56b8ce0a458fbf06c5285 Mon Sep 17 00:00:00 2001
From: chenrun1 <chenrun1@xiaomi.com>
Date: Mon, 6 Mar 2023 10:41:03 +0800
Subject: [PATCH] fs/fs_initialize.c:Sync fs in system restart callback

---
 fs/fs_initialize.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/fs/fs_initialize.c b/fs/fs_initialize.c
index f04aee4e702..a598f9b7e86 100644
--- a/fs/fs_initialize.c
+++ b/fs/fs_initialize.c
@@ -23,11 +23,40 @@
  ****************************************************************************/
 
 #include <nuttx/config.h>
+#include <nuttx/reboot_notifier.h>
 
 #include "rpmsgfs/rpmsgfs.h"
 #include "inode/inode.h"
 #include "aio/aio.h"
 
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sync_reboot_handler
+ ****************************************************************************/
+
+static int sync_reboot_handler(FAR struct notifier_block *nb,
+                               unsigned long action, FAR void *data)
+{
+  sync();
+  return 0;
+}
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: fs_sync_reboot_nb
+ ****************************************************************************/
+
+static struct notifier_block g_sync_nb =
+{
+  sync_reboot_handler
+};
+
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -57,4 +86,6 @@ void fs_initialize(void)
 #ifdef CONFIG_FS_RPMSGFS_SERVER
   rpmsgfs_server_init();
 #endif
+
+  register_reboot_notifier(&g_sync_nb);
 }