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

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 785d0fdf6e76..40aecd78cccc 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1000,6 +1000,9 @@ 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
@@ -1095,6 +1098,9 @@ 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;
 }