From b270ad6f0aedd27bdc689fc15f26bc650a59b12b Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Fri, 11 Apr 2014 17:49:55 +0800
Subject: [PATCH] f2fs: enable flush_merge only in f2fs is not read-only

Enable flush_merge only in f2fs is not read-only, so does the mount
option show.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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Reading git-format-patch failed