From 07870194bfb2fb043ecfcd2e3fea230cffe45e6f Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 25 Nov 2019 11:38:16 +0800
Subject: [PATCH] f2fs: keep lazytime on remount

[ Upstream commit 095680f24f2673d860fd1d3d2f54f40f330b4c63 ]

This patch fixes losing lazytime when remounting f2fs.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 fs/f2fs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index b05e10c332b7..15779123d089 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1556,6 +1556,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 		(test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
 
 	limit_reserve_root(sbi);
+	*flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
 	return 0;
 restore_gc:
 	if (need_restart_gc) {
-- 
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