linux-kernel - [PATCH 2/2] f2fs: fix to recover old fault injection config in ->remount

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Date:   Mon, 26 Sep 2016 19:45:06 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 2/2] f2fs: fix to recover old fault injection config in ->remount_fs

In ->remount_fs, we didn't recover original fault injection config if
we encounter error, fix it.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/super.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index aa35e60..6132b4c 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1001,6 +1001,9 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 	bool need_restart_gc = false;
 	bool need_stop_gc = false;
 	bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	struct f2fs_fault_info ffi = sbi->fault_info;
+#endif
 
 	/*
 	 * Save the old mount options in case we
@@ -1096,6 +1099,9 @@ restore_gc:
 restore_opts:
 	sbi->mount_opt = org_mount_opt;
 	sbi->active_logs = active_logs;
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	sbi->fault_info = ffi;
+#endif
 	return err;
 }
 
-- 
2.8.2.311.gee88674