erofs: remove unnecessary output in erofs_show_options()

We have already handled cache_strategy option carefully,
so incorrect setting could not pass option parsing.
Meanwhile, print 'cache_strategy=(unknown)' can cause
failure on remount.

Link: https://lore.kernel.org/r/20191119115049.3401-1-cgxu519@mykernel.net
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 849c0bd..057e6d7 100644 (file)
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -598,9 +598,6 @@ static int erofs_show_options(struct seq_file *seq, struct dentry *root)
                seq_puts(seq, ",cache_strategy=readahead");
        } else if (sbi->cache_strategy == EROFS_ZIP_CACHE_READAROUND) {
                seq_puts(seq, ",cache_strategy=readaround");
-       } else {
-               seq_puts(seq, ",cache_strategy=(unknown)");
-               DBG_BUGON(1);
        }
 #endif
        return 0;