linux-kernel - [PATCH] f2fs: fix to restore whint_mode in ->remount

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Message-Id: <20180228140120.8758-1-chao@kernel.org>
Date:   Wed, 28 Feb 2018 22:01:20 +0800
From:   Chao Yu <chao@...nel.org>
To:     jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] f2fs: fix to restore whint_mode in ->remount_fs

From: Chao Yu <yuchao0@...wei.com>

If we fail in ->remount_fs, it needs to restore old whint_mode as other
mount options.

Fixes: e25afe01822f ("f2fs: support passing down write hints given by users to block layer")
Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 89abe4087e66..8a93f78efca2 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1512,6 +1512,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 		sbi->s_qf_names[i] = s_qf_names[i];
 	}
 #endif
+	sbi->whint_mode = old_whint_mode;
 	sbi->mount_opt = org_mount_opt;
 	sbi->active_logs = active_logs;
 	sb->s_flags = old_sb_flags;
-- 
2.14.1.145.gb3622a4ee