From: Chao Yu <yuchao0@huawei.com>
Date: Mon, 12 Oct 2020 02:28:14 +0000 (+0800)
Subject: f2fs: don't issue flush in f2fs_flush_device_cache() for nobarrier case
X-Git-Tag: microblaze-v5.11~101^2~4
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=6ed29fe1cac9745589b7db8de3b5089e3ff591d0;p=linux-2.6-microblaze.git

f2fs: don't issue flush in f2fs_flush_device_cache() for nobarrier case

This patch changes f2fs_flush_device_cache() to skip issuing flush for
nobarrier case.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 05ab5ae2b5f7..1596502f7375 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -759,6 +759,9 @@ int f2fs_flush_device_cache(struct f2fs_sb_info *sbi)
 	if (!f2fs_is_multi_device(sbi))
 		return 0;
 
+	if (test_opt(sbi, NOBARRIER))
+		return 0;
+
 	for (i = 1; i < sbi->s_ndevs; i++) {
 		if (!f2fs_test_bit(i, (char *)&sbi->dirty_device))
 			continue;