From f9eadbbd424c083b8005c7b738f644611b9ef489 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 18 May 2010 14:31:45 +0200
Subject: [PATCH] writeback: bdi_writeback_task() must set task state before
 calling schedule()

Calling schedule without setting the task state to non-running will
return immediately, so ensure that we set it properly and check our
sleep conditions after doing so.

This is a fixup for commit 69b62d01.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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