From c29cd9004e72acb5a6cb8caf08508f1c5edee686 Mon Sep 17 00:00:00 2001
From: Wu Fengguang <fengguang.wu@intel.com>
Date: Wed, 18 Nov 2009 18:09:41 +0800
Subject: [PATCH] writeback: remove unused nonblocking and congestion checks
 (gfs2)

No one is calling wb_writeback and write_cache_pages with
wbc.nonblocking=1 any more. And lumpy pageout will want to do
nonblocking writeback without the congestion wait.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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