From cfe58f9dcd9afe181894e2257e3f8aa3fee840c5 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 31 Oct 2013 14:57:01 +0900
Subject: [PATCH] f2fs: avoid to wait all the node blocks during fsync

Previously, f2fs_sync_file() waits for all the node blocks to be written.
But, we don't need to do that, but wait only the inode-related node blocks.

This patch adds wait_on_node_pages_writeback() in which waits inode-related
node blocks that are on writeback.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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